**                                    Registration No.333-124310 424(b)(3)**

**                                     PricingSupplement No:407 Cusip:14912L2V2**

**                                    Dated:  October 25, 2005    **

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***Caterpillar Financial Services Corporation***

***Medium-Term Notes, Series F***

***(Floating Rate)***

***    With Maturities of 9 Months or More from Date of Issue***

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**Principal Amount:       Initial Interest Rate:        Proceed Amount:**

**$300,000,000          4.30% including the spread       $299,550,000**

**                                         **

**Original Issue Date:          Commission Fee:          Maturity Date:**

**10/28/2005                     $450,000                 10/28/2008**

**               **

**Dealer:              Index Maturity         Spread +/-:**

**Merrill Lynch $200 mm              Quarterly              +0.07%**

***Bill and Deliver $300 mm**

**(DTC #161)**

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**LaSalle Financial Services, Inc. $100 mm**

**(DTC #5174)**

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**Specified Currency:     Option to Elect Payment       Authorized Denominations**

**x****U.S. dollars          in U.S. dollars                (only applicableif**

**_ Other:___________     (only applicable if           Specified Currency is**

**                        Specified Currency is         other thanU.S.**

**                        other than U.S. dollars):     N/A    **

**                           N/A                             **

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**The Note isa:                                        Exchange RateAgent          X GlobalNote                                     (if other thanU.S.   **

**        CertificatedNote                                 Bank Trust, N.A.): N/A        (only applicable if**

**       SpecifiedCurrency                               **

**       is other than U.S. dollars)             Spread Multiplier:N/A                                                                           **

**Interest Rate Basis or Bases: 3 Month LIBOR + 7 BP**

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**LIBOR Source (only applicable if LIBOR Interest Rate Basis):**

**__Reuters       X Telerate**

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**LIBOR Currency (only applicable if LIBOR Interest Rate Basis): U.S. Dollar**

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**Maximum Interest Rate:  N/A            Interest Payment Period: Quarterly**

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**Interest Payment Dates: Coupons will pay/reset on the 28th of January,  **

**            April, July and October (or next good Business**

**            Day) modified following convention.**

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***Initial payment due:  01/28/06.***

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**Minimum Interest Rate: N/A**

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**Interest Rate Reset Option: _Yes X No**

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**Optional Reset Dates (only applicable if option to reset spread or spread multiplier): N/A**

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**Basis for Interest Rate Reset (only applicable if option to reset spread or spread multiplier): N/A**

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**Minimum Interest Rate: N/A            Interest Payment Dates: N/A**

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**Stated Maturity Extension Option: _ Yes X No**

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**Extension Period(s) and Final Maturity Date (only applicable if option to extend stated maturity): N/A**

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**Basis for Interest Rate During Extension Period (only applicable if option to extend stated maturity): N/A**

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**Historical Exchange Rate (only applicable if Specified Currency other than U.S. dollars): N/A**

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**Interest Payment Dates: Coupons will pay/reset on the 28th of January,**

**            April, July and October (or next good Business**

**            Day) modified following convention.**

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***Initial payment due:  01/28/06.***

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**Interest Determination Dates: Two London business days prior to the reset date.**

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**Calculation Agent (if other than U.S. Bank Trust, N.A.): N/A**

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**Original Issue           Total Amount of OID: N/A    Terms of Amortizing     DiscountNote:                                       Notes:  N/A**

** ****  Yes      x No          Issue Price(expressed                **

**                         as a percentage of   **

**                         aggregate principal**

**                          amount): 100%**

**                      **

**                                                     **

**Redemption Date(s) (including                        Redemption Price(s): N/A any applicable regularor                            **

**special record dates): N/A**

**                                        **

**Repayment Date(s) (including                         Repayment Price(s): N/A any applicable regularor**

**special record dates): N/A**

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# **Other Terms: N/A**

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**    **"The interest rates on the Notes may be changed by Caterpillar Financial

Services Corporation from time to time, but any such change will not affect

the interest rate on any Notes offered prior to the effective date of the

change.  After the issuance of the Notes covered by this Pricing Supplement,

$8,700.00 mm principal amount of Notes remain available for sale pursuant to

the accompanying Prospectus Supplement.”

_______________________________

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**    Pricing Supplement to Prospectus Supplement dated June 08, 2005**

**        and Prospectus dated May 13, 2005**