CRAFTSMAN 4-CYCLE ENGINE

 

MODEL

NUMBER 143.996504

KEY

PART

 

KEY

PART

 

NO.

NO.

DESCRIPTION

NO.

NO.

DESCRIPTION

1

37266

Cylinder (Incl, 2,20 & 150)

2

26727

Dowel Pin

6

33734

Breather Element

7

36557

Breather Ass'y.

 

 

(Incl. 8 & 12A)

12

36775

BreatherTubs

12A

36558

Breather Cover & Tube

 

 

(Incl. 12B)

12S

36694

Breather Tube Elbow

14

28277

Washer

15

30589

Governor Rod (Incl. 14)

16

34839A

Govemor Lever

17

31335

Governor LeverClamp

18

651018

Screw, Torx

 

 

T-15, 8-32 x 19/64 =

19

36261

ExtensionSpring

20

32600

Oil Seal

30

35801

Crankshaft

4040027Piston, Pin & Ring Set (Std.)

40028Piston, Pin & Ring Set

 

 

 

(.010'OS)

41

40025

 

Piston & Pin Ass'y.(Std.)

 

 

 

(Incl. 43)

 

40026

 

Piston & Pin Assay.

 

 

 

(.010" OS) (Incl.43)

42

40006

 

Ring Set (Std.)

 

40007

 

Ring Set (.010" OS)

43

20381

 

Piston Pin Retaining Ring

45

36777

 

Connecting Rod Ass'y.

 

 

 

(incl. 46)

46

32610A

 

Connecting Rod Bolt

48

27241

 

Valve Lifter

50

36778

 

Camshaft(MCR)

52

29914

 

Oil Pump Ass'y.

69

35261

Mounting Flange Gasket

70

34311E

 

MountingFlange

 

 

 

(Incl. 72 thru 83,306)

72

30572

 

Oil Drain Plug (Ind. 73)

73

28833

 

Drain Plug Gasket

75

27897

 

Oil Seal

80

30b'74A

 

Governor Shaft

81

30590A

 

Washer

82

30591

 

Governor Gear Assay.

 

 

 

(Incl. 81)

83

30588A

 

Governor Spool

86

650488

 

Screw. 1/4-20 x 1-1/4"

89

611004

 

FlywheelKey

90

611150

 

FI_

92

650815

 

BelleviltaWasher

93

650816

 

Rywheel Nut

100

34443B

 

Solid State Ignition

101

610118

 

Spark Plug Cover

103

651007

 

Screw, Torx T-15,

 

 

 

10-24 x 15/16"

110

37047

 

GroundW]re

110A

36953

 

GroundWire

110B

36954

 

D.C. Starter Wire

119

36787

*

CyfinderHead Gasket

120

36825

 

CylinderHead

125

37288

 

Exhaust Valve (Std.)

 

 

 

(Include. 151)

126

37289

 

Intake Valve (Std.) (Incl. 151)

130

6021A

 

Screw, 5/16-18 x 1-1/2"

135

35395

 

Resistor Spark Plug

178

29752

Nut & Lock Washer, 114-28

182

6201

Screw, 1/4-28 x 7/8"

18426756 * Carburetor To Intake Pipe Gasket

185

36785

 

Intake Pipe

186

326.53

 

GovemorLink

189

650831

 

Screw, 1/4-20 x 1/2"

191

36559A

 

S,E, Brake Bracket

 

 

 

(Include. 195)

195

610973

 

Terminal

196

35035

 

Power Restart Switch

207

34336

 

Throttle Unk

216

33086

 

R.P,M. Adjusting Lever

223

650451

 

Screw, 1/4-20 x 1"

224

36786

"

Intake Pipe Gasket

238

650932

 

Screw, 10o32 x 49/64

239

34338

*

Air Cleaner Gasket

241

36919

 

Air CleanerCollar

245

36905

 

AirCleaner Rltar

250

36920

 

Air Cleaner Cover

260

36960

 

BlowerHousing

261

30200

 

Screw, 10024x 9/16'

262

650831

 

Screw, 1/4-20 x 1/2"

263A

36921

 

Starter Grill

275

36790

 

Muffler

277

650988

 

Screw, 1/4-20x2-5/16"

285

35000A

 

StarterCup

287

650926

 

Screw, 8-32 x 21/64'

290

29774

 

Fuel Line

292

26460

 

Fuel LineClamp

298

28763

 

Screw, 10-32 x 35/64"

300

36916

 

FueITank

 

 

 

(Include. 292 & 30"1)

301

36246

 

FueICap

305

35647

 

Oil FillTube

306

36996

*

"O'-Ring

307

35499

 

"Ct'-Ring

309

650562

 

Screw, 10-32 x 1/2"

310

35648

 

Dipstick

313

34080

 

Spacer

314

650767

 

Screw, 8-32 x27/84"

315

36952

 

AlternatorCoil

322

35013

 

Connecto[ Scdy

322A

610885

 

Connector Body

325

35249

 

SpdngClip

325A

37152

 

Spdng Clip

347

651038

 

Screw, 10032x 51/64"

370A

36261

 

LubricationDecal

370C

37199

 

Pdmer Decal

380

640174

 

Carburetor (Incl. 184)

390

590739

 

RewindStartar

395

35709

 

Electric Starter_Motor

 

 

 

(I 2 Volt)

400

36792B

 

Gasket Set

 

 

 

(Incl. Items Marked *)

416

:_o088

 

Spark ArrestorKit

 

 

 

(Incl. 417)(Optional)

417

650821

 

Screw, 10-32 x 1/2"

 

 

 

(Optional)

900

-- --

 

Replacement EngineNONE

900

----

 

Replacement S/B 750832,

 

 

 

orderfrom 71-999

-- --

 

 

RPM High 2900 to3200

 

 

(RJ19LM)

150

31672

Valve Spflng

151

31673

Valve SpringCap

151A

40017

Intake Valve Seal

169

36783

* Valve Cover Gasket

172

36784

Valve Cover

174

30200

Screw, 10024x 9/16"

NOTE: This engine could have been built with 590702 starter.

NOTE: All component dimensions given in

43U.S, inches 1 inch = 25.4 mm

Page 26
Image 26
Craftsman 917.377431 manual Craftsman 4-CYCLE Engine Model, KEY Part Description

917.377431 specifications

The Craftsman 917.377431 is a robust and versatile lawn tractor designed to meet the needs of homeowners looking to maintain their lawns efficiently and effectively. This machine combines power, comfort, and advanced technology, making it a valuable addition to any gardening arsenal.

One of the standout features of the Craftsman 917.377431 is its powerful 24 HP Briggs & Stratton engine. This engine provides ample power to tackle even the toughest grass and terrain. The 42-inch cutting deck allows for a wide cutting radius, significantly reducing the time spent mowing. Additionally, the deck height can be adjusted to six different positions, ranging from one to four inches, enabling users to customize their cut depending on the type of grass and seasonal lawn care needs.

The lawn tractor uses a hydrostatic transmission system, which offers seamless speed control without the need for shifting gears. This feature enhances user experience, allowing for easy navigation around obstacles and smooth operation across varying terrains. The controls are ergonomically designed, providing comfort and reducing fatigue during extended use.

Safety is also a primary focus with the Craftsman 917.377431. The tractor is equipped with an automatic safety feature that shuts off the engine if the operator leaves the seat, providing peace of mind during operation. The headlights enhance visibility during early morning or late evening mowing sessions, making the machine suitable for use at various times of the day.

Another significant characteristic of the Craftsman 917.377431 is its ease of maintenance. The machine features a dual-blade system that ensures a clean cut while also providing versatility in grass disposal. The convenient side discharge allows clippings to be expelled neatly, while a mulching kit can be added for those who prefer to recycle grass clippings as natural fertilizer.

With a sturdy build and user-friendly design, the Craftsman 917.377431 stands out as an exemplary lawn tractor. Its combination of power, safety features, and customizable cutting options makes it an ideal choice for homeowners aiming for a pristine lawn. Whether you have a small yard or a larger property, this tractor offers the performance and comfort necessary for effective lawn care.