ENGINE PARTS - MODEL TB490BC 4-CYCLE GAS TRIMMER

(ppn - 41ADT49C063) (Serial Number 011...... and greater)

Item

Part No.

Description

1

791-182338

Engine Cover

2

791-182339

Engine Cover Screws

3

791-181025

Valve Cover Screw

4

791-182098

Valve Cover

5

791-182099

Valve Cover Gasket

6

791-182340

Rocker Adjustment Nut

7

791-182101

Rocker Arm Pivot

8

791-182100

Rocker Arm

9

791-182341

Rocker Arm Stud

10

791-182103

Valve Spring Retainer

11

791-181038

Valve Spring

12

791-182102

Push Rod Guide

13

791-181033

Push Rod

14

791-182700

Cylinder Head (includes 9 & 12)

15

791-182344

Cylinder Screw

16

791-182345

Intake Baffle

17

791-182749

Carburetor Mount Gasket

18

791-181034

Nut

19

791-182347

Carburetor Mount (includes 18)

20

791-182348

Carburetor Mount Screw

21

791-182732

Carburetor Gasket

22A

791-182654

Carburetor with Primer

22B

753-1225

Carburetor with Primer

23

791-181751

O-Ring, Carburetor

24

753-1227

Air Filter/Choke Cover Assembly

 

 

(includes 27 & 28)

25

791-182097

Breather Tube

26

791-181750

Air Filter Mounting Screw

27

791-181757

Air Filter

28

753-1228

Air Filter Cover

29

753-1229

Fuel Cap

30

791-182352

Fuel Return Line

31

791-182353

Fuel Pick-Up Line with Filter

32

791-181080

Screw

33

791-182354

Washer

34

753-1230

Fuel Tank Assembly (includes 29-31)

35

791-182356

Fuel Tank Shield

36A

753-1234

Throttle Cable

36B

753-1231

Throttle Cable

37

791-182358

Muffler Baffle

38

791-181048

Muffler Gasket

39

791-182359

Muffler (includes 40, 42-44)

40

791-180890

Spark Arrestor Screen

41

791-181045

Screen Cover

42

791-181046

Screw

43

791-182360

Muffler Shield

44

791-182361

Muffler Mounting Screw

45

791-182362

Muffler Cover

46

791-182804

Switch Wire Assembly

Item

Part No.

Description

47

791-181247

Palnut

48

753-1199

Recoil Pulley

49

791-613102

Recoil Spring

50

791-182366

Nut Clip

51

791-181079

Pull Handle

52

791-611061

Rope Guide

53

791-613103

Rope

54

791-181020

Starter Housing Screw

55

753-1237

Starter Housing Assembly

 

 

(includes 49-56)

56

791-182368

Clutch Washer

57

753-1238

Clutch with Spacer

58

791-153592

Clutch Drum

59

753-1239

Clutch Cover

60

791-145569

Anti-Rotation Screw

61

753-1240

Screw

62

753-1241

Nut

63

791-181345

Clutch Cover Screw

64

791-182725

Ignition Module with Screws

65

791-181065

Spacer

66

791-181867

Flywheel

67

791-182743

Shroud Assembly with Screws

68

753-1244

Crankcase Assembly

 

 

(includes 69-73)

69

791-610309

Oil Seal

70

791-182372

Bearing

71

791-182380

Crankshaft

72

791-182375

90° Elbow

73

791-182379

Breather Hose

74

791-181015

Cam Gear

75

753-1242

Cam Follower Set

76

791-181013

Cam Bracket

77

791-181012

Cam Bracket Screw

78

791-181040

Valves, Intake and Exhaust

79

791-182374

Cylinder Gasket

80

791-181018

Oil Pan Gasket

81

791-182377

Oil Pan (includes 80 & 82)

82

791-181020

Oil Pan Screw

83

791-182378

Dipstick Assembly (includes 84)

84

791-182290

O-Ring

85

791-181009

Connecting Rod

86

791-181008

Wrist Pin Button

87

753-1243

Piston

88

791-181006

Wrist Pin

89

791-182295

Piston Ring Set

90

791-182409

Washer

91

791-181861

Screw

92

791-612468

Compression Spring

93

791-182537

Grommet

*

791-180852B

Spark Plug

*

753-1245

Short Block Assembly

 

 

(includes 3-7, 68-89)

*

791-182745

Cylinder Assembly

 

 

(includes 9, 12, 14 & 79)

*

791-180142

Starter Pawl Repair Kit

*

791-182156

Carburetor Repair Kit

*

753-1248

Gasket Diaphragm Repair Kit

*Parts not shown

Reissued 12/01