| DATED      September 23, 2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                                                                                  |   |   |   |
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| FILED      PURSUANT TO RULE 433                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |                                                                                  |   |   |   |
| REGISTRATION      NO. 333-150218                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                  |   |   |   |
| CATERPILLAR      FINANCIAL SERVICES CORPORATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |                                                                                  |   |   |   |
| MEDIUM-TERM      NOTES, SERIES F, 6.20% NOTES DUE 2013                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                  |   |   |   |
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| SUBJECT                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | FINAL PRICING DETAILS                                                                 |   |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                  |   |   |   |   |   |   |
| Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Caterpillar      Financial Services Corporation                                       |   |   |   |
| Title      of Securities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | Medium-Term      Notes, Series F, 6.20% Notes Due 2013                                |   |   |
| Ratings:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | A2/A                                                                                  |   |   |   |   |   |   |
| Format:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | SEC      Registered-Registration Statement Number 333-150218                          |   |   |
| Trade      Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | September      23, 2008                                                               |   |   |   |   |   |   |
| Settlement      Date (Original Issue Date):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | September      26, 2008                                                               |   |   |   |   |   |   |
| Maturity      Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | September      30, 2013                                                               |   |   |   |   |   |   |
| Principal      Amount:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | $750,000,000                                                                          |   |   |   |   |   |   |
| Price      to Public (Issue Price):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | 99.893%                                                                               |   |   |   |   |   |   |
| All-in-price:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | 99.543%                                                                               |   |   |   |   |   |   |
| Pricing      Benchmark:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | UST      3.125% Notes due August 2013                                                 |   |   |   |   |
| UST      Spot (Yield):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 3.025%                                                                                |   |   |   |   |   |   |
| Spread      to Benchmark:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | +320      basis points (3.20%)                                                        |   |   |   |   |   |
| Yield      to Maturity:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | 6.225%                                                                                |   |   |   |   |   |   |
| Net      Proceeds to Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | $746,572,500                                                                          |   |   |   |   |   |   |
| Coupon:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | 6.200%                                                                                |   |   |   |   |   |   |
| Interest      Payment Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Interest      will be paid semi-annually on the 30th of each March and      September |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | of      each year, commencing March 30, 2009 and ending on the Maturity      Date     |
| Day      Count Convention:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 30/360                                                                                |   |   |   |   |   |   |
| Denominations:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Minimum      denominations of $1000 with increments of $1000  thereafter              |
| Joint  Bookrunners:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | Citigroup      Global Markets Inc. (30.34%)                                           |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Barclays      Capital Inc. (30.33%)                                                   |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Merrill      Lynch, Pierce, Fenner & Smith Incorporated (30.33%)                  |   |   |
| Co-Managers:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Banc      of America Securities LLC (3.0%)                                            |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | BNP      Paribas Securities Corp. (3.0%)                                              |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Goldman,      Sachs & Co. (3.0%)                                                  |   |   |   |   |   |
| Billing      and Delivery Agent:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Citigroup      Global Markets Inc.                                                    |   |   |   |   |   |
| CUSIP:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 14912L4C2                                                                             |   |   |   |   |   |   |
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| The      issuer has filed a registration statement (including a prospectus) with      the SEC for the offering to which this communication      relates.  Before you invest, you should read the prospectus in      that registration statement and other documents the issuer has filed with      the SEC for more complete information about the issuer and this      offering.  You may get these documents for free by visiting      EDGAR on the SEC Web site at www.sec.gov.  Alternatively, the      issuer, any underwriter or any dealer participating in the offering will      arrange to send you the prospectus if you request it by calling Citigroup      Global Markets Inc. at 877-858-5407,  Merrill Lynch, Pierce,      Fenner & Smith Incorporated at 1-866-500-5408 or Barclays Capital Inc.      at 888-227-2775, ext2663. |