| DATED DECEMBER 12, 2011                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                                                                                                                                                                                         |
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| FILED PURSUANT TO RULE 433                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| REGISTRATION NO. 333-173364                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| CATERPILLAR FINANCIAL SERVICES CORPORATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| MEDIUM-TERM NOTES, SERIES G, FLOATING RATE NOTES DUE 2013                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
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| SUBJECT                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | FINAL PRICING DETAILS                                                                                                                                                                        |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                         |
| Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | Caterpillar Financial Services Corporation                                                                                                                                                   |
| Title of Securities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Medium-Term Notes, Series G, Floating Rate Notes Due 2013                                                                                                                                    |
| Format:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | SEC Registered-Registration Statement Number 333-173364                                                                                                                                      |
| Trade Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | December 12, 2011                                                                                                                                                                            |
| Settlement Date (Original Issue Date):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | December 15, 2011                                                                                                                                                                            |
| Maturity Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | December 11, 2013                                                                                                                                                                            |
| Principal Amount:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | $200,000,000                                                                                                                                                                                 |
| 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 to Benchmark:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | + 30 basis points (0.30%)                                                                                                                                                                    |
| Net Proceeds to Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | $199,800,000                                                                                                                                                                                 |
| Index Maturity:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | Three Months                                                                                                                                                                                 |
| Interest Rate Calculation:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | USD LIBOR determined on Interest Determination Date plus the Spread                                                                                                                          |
| Interest Reset Periods and Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Quarterly on the 11th day of March, June, September and December 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 11th of each March, June, September and December of each year, commencing March 11, 2012 and ending on the Maturity Date                         |
| Day Count Convention:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Actual/360                                                                                                                                                                                   |
| Denominations:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Minimum denominations of $1,000 with increments of $1,000 thereafter                                                                                                                         |
| Joint Lead Managers & Bookrunners:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Merrill Lynch, Pierce, Fenner & Smith                     Incorporated (50.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | J.P. Morgan Securities LLC (50.00%)                                                                                                                                                          |
| Billing and Delivery Agent:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | J.P. Morgan Securities LLC                                                                                                                                                                   |
| CUSIP:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | 14912L4Z1                                                                                                                                                                                    |
| 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 Merrill Lynch, Pierce, Fenner & Smith Incorporated toll free at (800) 294-1322 or J.P. Morgan Securities LLC collect at (212) 834-4533. |