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 * PIGOTT MARK C   2. Issuer Name and Ticker or Trading Symbol PACCAR INC [PCAR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Executive Chairman (Last) (First) (Middle) 777 106TH AVENUE NE 3. Date of Earliest Transaction (Month/Day/Year) 03/06/2018 (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               2,886,445 D   COMMON STOCK               1,308,892 I (1) EASCLIFFE COMPANY COMMON STOCK               283,280 I WIFE AND CHILDREN COMMON STOCK (SIP) (2) 03/06/2018   J(3)   301.155 A $ 70.28 84,972.334 (4) D

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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 (5)

$ 30.81

01/01/2012

02/06/2019

COMMON STOCK

194,004

194,004

D

STOCK OPTION (5)

$ 36.12

01/01/2013

02/02/2020

COMMON STOCK

134,492

134,492

D

STOCK OPTION (5)

$ 50.5

01/01/2014

02/03/2021

COMMON STOCK

92,832

92,832

D

STOCK OPTION (5)

$ 43.24

01/01/2015

02/02/2022

COMMON STOCK

134,084

134,084

D

STOCK OPTION (5)

$ 47.81

01/01/2016

02/06/2023

COMMON STOCK

108,714

108,714

D

STOCK OPTION (5)

$ 59.15

01/01/2017

02/07/2024

COMMON STOCK

85,618

85,618

D

COMMON STOCK (LTIP) (6)

(6)

03/06/2018

J(7)

158.07

(6)

(6)

COMMON STOCK

158.07

$ 69.91

44,360.825

D

COMMON STOCK (DICP) (8)

(8)

03/06/2018

J(9)

393.951

(8)

(8)

COMMON STOCK

393.951

$ 69.91

110,558.254

D

COMMON STOCK (DCP) (10)

(10)

03/06/2018

J(11)

120.439

(10)

(10)

COMMON STOCK

120.439

$ 69.91

33,799.959

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PIGOTT MARK C 777 106TH AVENUE NE BELLEVUE, WA 98004	X		Executive Chairman

Signatures

Mark C. Pigott		03/08/2018
**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)	Shares held by a corporation in which Reporting Person is a shareholder. Holding is reported voluntarily as Reporting Person is not a controlling shareholder and has no voting or investment power with respect to the Issuer's securities.
(2)	Shares held in PACCAR Savings Investment Plan (SIP).
(3)	March 6, 2018 dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP.
(4)	Balance includes shares awarded under SIP (Company match) since date of last report in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).
(5)	Option to buy awarded under PACCAR Long Term Incentive Plan (LTIP).
(6)	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 conditions.
(7)	Dividend on share units held in deferred phantom stock account under LTIP reinvested pursuant to LTIP.
(8)	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 conditions.
(9)	Dividend on share units held in deferred phantom stock account under DICP reinvested pursuant to DICP.
(10)	Share units held in deferred phantom stock account under PACCAR Deferred Compensation Plan (DCP) convertible to common stock on a one for one basis upon satisfaction of all applicable conditions
(11)	Dividend on share units held in deferred phantom stock account under DCP reinvested pursuant to DCP.

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