CALCULATION OF REGISTRATION FEE

Title of Each Class of Securities Offered	Maximum Aggregate Offering Price(1)	Amount of Registration Fee(2)
3.900% PowerNotes® Due May 15, 2011	$41,861,000	$2,335.84
4.750% PowerNotes® Due May 15, 2013	$20,485,000	$1,143.06
TOTAL		$3,478.90

(1)	Excludes accrued interest, if any.
(2)	Calculated in accordance with Rule 457(r) under the Securities Act of 1933.

Caterpillar Financial Services Corporation PowerNotes®, with Maturities of 9 Months or More from Date of Issue

Filed under Rule 424(b)(3), Registration Statement(s) No. 333-150218

Pricing Supplement Number 1161 Dated May 11, 2009

(to Prospectus dated April 11, 2008 and Prospectus Supplement dated April 11, 2008)

Investors should read this pricing supplement in conjunction with the Prospectus and Prospectus Supplement.

CUSIP Number

Aggregate Principal Amount

Selling Price(3)

Gross Concession

Net Proceeds

Coupon Type

Coupon Rate(4)

Coupon Frequency

Maturity Date

1st Coupon Date

1st Coupon Amount

Survivor's Option

Product Ranking

Moody's Rating

S & P Rating

Yield(5)

14912HPD6

$41,861,000.00

100.000%

0.550%

$41,630,764.50

FIXED

3.900%

SEMI-ANNUAL

05/15/2011

11/15/2009

$19.61

YES

Senior Unsecured Notes

A2

A

3.900%

Redemption Information: Non-Callable. Joint Lead Managers and Lead Agents: Incapital LLC, Banc of America Securities LLC Agents: Charles Schwab & Co., Inc., Citi, Edward D. Jones & Co., L.P., Fidelity Capital Markets a division of National Financial Services LLC, Merrill Lynch & Co., Morgan Stanley, UBS Investment Bank, Wachovia Securities

CUSIP Number

Aggregate Principal Amount

Selling Price(3)

Gross Concession

Net Proceeds

Coupon Type

Coupon Rate(4)

Coupon Frequency

Maturity Date

1st Coupon Date

1st Coupon Amount

Survivor's Option

Product Ranking

Moody's Rating

S & P Rating

Yield(5)

14912HPE4

$20,485,000.00

100.000%

0.950%

$20,290,392.50

FIXED

4.750%

SEMI-ANNUAL

05/15/2013

11/15/2009

$23.88

YES

Senior Unsecured Notes

A2

A

4.750%

Redemption Information: Non-Callable. Joint Lead Managers and Lead Agents: Incapital LLC, Banc of America Securities LLC Agents: Charles Schwab & Co., Inc., Citi, Edward D. Jones & Co., L.P., Fidelity Capital Markets a division of National Financial Services LLC, Merrill Lynch & Co., Morgan Stanley, UBS Investment Bank, Wachovia Securities

  Caterpillar Financial Services Corporation   Offering Dates: May 05, 2009 through May 11, 2009   Trade Date: Monday, May 11, 2009 @12:00 PM ET   Settlement Date: Thursday, May 14, 2009   Minimum Denomination/Increments: $1,000.00/$1,000.00   Initial trades settle flat and clear SDFS: DTC Book Entry only   DTC number: 0235 via RBC Dain Rauscher Inc.  

(3)	The interest rates on the PowerNotes® may be changed by Caterpillar Financial Services Corporation from time to time, but any such changes will not affect the interest rate on any PowerNotes® offered prior to the effective date of the change.
(4)	Expressed as a percentage of aggregate principal amount. Actual Price to Public may be less, and will be determined by prevailing market prices at the time of purchase as set forth in the confirmation sheet.
(5)	Yields are quoted on a semi-annual bond equivalent yield basis.