| DATED FEBRUARY 23, 2011                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
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| FILED PURSUANT TO RULE 433                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| REGISTRATION NO. 333-150218                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| CATERPILLAR FINANCIAL SERVICES CORPORATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| MEDIUM-TERM NOTES, SERIES F, FLOATING RATE NOTES DUE 2013                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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| SUBJECT                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | FINAL PRICING DETAILS |
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| Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | Caterpillar Financial Services Corporation |
| Title of Securities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Medium-Term Notes, Series F, Floating Rate Notes Due 2013 |
| Ratings:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | A (Stable Outlook) by Standard & Poor’s, a division of The McGraw-Hill Companies |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | A2 (Stable Outlook) by Moody’s Investors Service, Inc. |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | A (Stable Outlook) by Fitch Ratings Ltd. |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Ratings may be changed, suspended or withdrawn at any time and are not a recommendation to buy, hold or sell any security |
| Format:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | SEC Registered-Registration Statement Number 333-150218 |
| Trade Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | February 23, 2011 |
| Settlement Date (Original Issue date):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | February 28, 2011, which is the third business day following the Trade Date. |
| Maturity Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | February 22, 2013 |
| Principal Amount:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | $285,000,000 |
| Price to Public (Issue Price):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | 100.00% |
| All-in-price:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | 99.90% |
| Interest Rate Basis (Benchmark):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | 3 Month USD LIBOR |
| Index Currency:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | U.S. Dollars |
| Spread (Plus or Minus):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | + 16 basis points (0.16%) |
| Net Proceeds to Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | $284,715,000 |
| Index Maturity:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Three Months |
| Interest Rate Calculation:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | USD LIBOR determined on Interest Determination Date plus the Spread |
| Specified Currency:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | U.S. Dollars |
| Initial Interest Rate:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | To be determined two (2) London Business Days prior to the Original Issue Date |
| Interest Reset Periods and Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Quarterly on the 22nd of February, May, August and November of each year prior |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | to the Maturity Date |
| Interest Determination Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Quarterly, two London Business Days prior to each Interest Reset Date |
| Interest Payment Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | Interest will be paid quarterly on the 22nd of February, May, August and November of |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | each year, commencing May 20, 2011 and ending on the Maturity Date |
| Day Count Convention:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Actual/360 |
| Denominations:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | Minimum denominations of $1,000 with increments of $1,000 thereafter |
| Sole Lead Manager & Bookrunner                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | SG Americas Securities LLC (SGAS) (100%) |
| Billing and Delivery Agent:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | SG Americas Securities LLC (SGAS) |
| CUSIP:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 14912L4R9 |
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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 SG Americas Securities LLC (SGAS) at 800-861-9189. |