FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * SKREDSVIG JANICE B   2. Issuer Name and Ticker or Trading Symbol PACCAR INC [PCAR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VICE PRESIDENT & CIO (Last) (First) (Middle) 777 106TH AVENUE NE 3. Date of Earliest Transaction (Month/Day/Year) 10/06/2006 (Street) BELLEVUE, WA 98004 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price COMMON STOCK (SIP) 10/06/2006   J(1)   11.8 A $ 55.53 3,281.5 (2) D   COMMON STOCK (SIP) 10/06/2006   J(3)   0.1 A $ 54.35 3,281.6 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

STOCK OPTION (4)

$ 20.93

01/01/2006

01/15/2013

COMMON STOCK

8,430

8,430

D

STOCK OPTION (4)

$ 37.97

01/01/2007

01/15/2014

COMMON STOCK

4,801

4,801

D

STOCK OPTION (4)

$ 48.17

01/01/2008

01/20/2015

COMMON STOCK

5,292

5,292

D

STOCK OPTION (4)

$ 48.34

01/01/2009

01/26/2016

COMMON STOCK

6,036

6,036

D

COMMON STOCK (LTIP) (5)

(5)

(5)

(5)

COMMON STOCK

2,111.4

2,111.4

D

COMMON STOCK (DICP) (6)

(6)

(6)

(6)

COMMON STOCK

6,079.7

6,079.7

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SKREDSVIG JANICE B 777 106TH AVENUE NE BELLEVUE, WA 98004			VICE PRESIDENT & CIO

Signatures

Janice B. Skredsvig		10/09/2006
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	September 5, 2006 dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP. (SIP information based on most recent report from SIP Trustee - received October 6, 2006.)
(2)	On July 11, 2006 PACCAR declared a stock dividend of one additional share of common stock for every two shares of common stock payable August 10, 2006 to all holders of record of common stock on July 27, 2006. As a result of the stock dividend the reporting person received 1,089.9 additional shares of PACCAR common stock on August 10, 2006. Other totals adjusted in a prior report.
(3)	Interest on funds held in SIP pending investment in shares reinvested in shares September 11, 2006 pursuant to SIP.
(4)	Option to buy awarded under PACCAR Long Term Incentive Plan (LTIP).
(5)	Share units held in deferred phantom stock account under LTIP convertible to common stock on a one-for-one basis upon satisfaction of all applicable vesting conditions.
(6)	Share units held in deferred phantom stock account under PACCAR Deferred Incentive Compensation Plan (DICP) convertible to common stock on a one-for-one basis upon satisfaction of all applicable vesting conditions.
Remarks: Fractional shares rounded to nearest 1/10.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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