Page 1
ENGINE PARTS - MODELS TB425CS
4-CYCLE GAS TRIMMER
PPN - 41ADT42C063
1
45
44
48
49
50
51
53
52
46
47
88
55
56
57
87
58
59
67
72
74
71
70
69
66
75
76
79
78
68
80
81
82
83
81
84
65
64
63
62
56
2
3
16
17
18
19
20
21
22
23
25
27
24
29
30
32
35
4
5
8
10
6
7
9
13
11
37
12
15
14
38
36
39
40
41
42
43
28
31
34
33
Issued 9/02
61
73
86
77
26
85
60
89
Page 2
ENGINE PARTS - MODELS TB425CS
4-CYCLE GAS TRIMMER
PPN - 41ADT42C063
Item Part No. Description
45 791-181247 Palnut
46 753-1199 Recoil Pulley
47 753-04286 Recoil Spring
48 791-182366 Nut Clip
49 791-181079 Pull Handle
50 791-611061 Rope Guide
51 791-613103 Rope
52 791-181020 Starter Housing Screw
53 753-1237 Starter Housing Assembly (includes 45-51)
54 791-182368 Clutch Washer
55 753-1238 Clutch with Spacer
56 791-153592 Clutch Drum
57 753-1239 Clutch Cover
58 791-145569 Anti-Rotation Screw
59 753-1240 Screw
60 753-1241 Nut
61 791-181345 Clutch Cover Screw
62 753-04298 Ignition Module with Screws
63 791-181065 Spacer
64 753-04299 Flywheel
65 791-182743 Shroud Assembly with Screws
66 791-182376 Crankcase Assembly (includes 67 & 68)
67 791-182375 90° Elbow
68 791-182379 Breather Hose
69 791-181015 Cam Gear
70 753-1242 Cam Follower Set
71 791-181013 Cam Bracket
72 791-181012 Cam Bracket Screw
73 791-181040 Valves, Intake and Exhaust
74 791-182374 Cylinder Gasket
75 791-181018 Oil Pan Gasket
76 791-182377 Oil Pan (includes 75 & 77)
77 791-181020 Oil Pan Screw
78 753-04041 Dipstick Assembly
79 791-182290 O-Ring
80 791-181009 Connecting Rod
81 791-181008 Wrist Pin Button
82 753-1243 Piston
83 791-181006 Wrist Pin
84 791-182295 Piston Ring Set
85 791-182409 Washer
86 791-181861 Shroud Screw
87 791-612468 Compression Spring
88 791-182537 Grommet
89 753-04316 Air Cleaner Cover
* 791-180852B Spark Plug
* 753-1245 Short Block Assembly (includes 3-14, 65-84)
* 791-180142 Starter Pawl Repair Kit
* 791-182156 Carburetor Repair Kit
* 753-1248 Gasket Diaphragm Repair Kit
* Parts not shown
Item Part No. Description
1 753-04083 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
14 791-182745 Cylinder Assembly (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
22 753-04296 Carburetor with Primer
23 791-181751 O-Ring, Carburetor
24 753-04305 Air Filter/Choke Cover Assembly (includes 27)
25 791-182097 Breather Tube
26 791-181750 Air Filter Mounting Screw
27 791-181757 Air Filter
28 753-1229 Fuel Cap
29 791-182352 Fuel Return Line
30 791-182353 Fuel Pick-Up Line with Filter
32 791-181080 Screw
32 791-182354 Washer
33 753-1230 Fuel Tank Assembly (includes 28-30)
34 791-182356 Fuel Tank Shield
35 753-04297 Throttle Cable
36 791-182358 Muffler Baffle
37 791-181048 Muffler Gasket
38 791-182359 Muffler (includes 37, 39-41)
39 791-180890 Spark Arrestor Screen
40 791-181045 Screen Cover
41 791-181046 Screw
42 791-182361 Muffler Mounting Screw
43 753-04092 Muffler Cover
44 791-182804 Switch Wire Assembly
Issued 9/02
Page 3
BOOM AND TRIMMER PARTS - MODEL TB425CS
4-CYCLE GAS TRIMMER
PPN - 41ADT42C063
Item Part
No. Description
1 753-04234 Throttle Housing and Trigger Assembly
(includes 2 & 3)
2 753-04119 Throttle Trigger
3 791-182690 Throttle Trigger Spring
4 791-182405 Switch Assembly
5 753-04297 Throttle Cable
6 791-180687 J-Handle Assembly
7 791-683295 Handle Bracket Assembly (includes 8-13)
8 791-181811 Screw
9 791-181812 Upper Handle Clamp
10 791-181813 Middle Handle Clamp
11 791-181814 Lower Handle Clamp
12 791-181815 Nut
13 791-145569 Anti-Rotation Screw
14 791-610327 Harness Clip
15 753-1247 Upper Drive Shaft Housing Assembly
16 753-1190 EZ-Link™ Coupler (includes 17-20)
17 791-182057 Screw
18 791-181617 Bolt
19 791-181981 Adjustment Knob
20 791-181886 Knob Retaining Nut
21 753-04304 Lower Drive Shaft Housing Assembly
22 791-181852 Lower Flexible Drive Shaft
23 791-181560 Palnut
24 791-153597 Lower Clamp Assembly
25 791-145569 Anti-Rotation Screw
26 791-180531 Shield Mounting Hardware
27 791-181659 Shield and Blade Assembly (includes 28)
28 791-181823 Blade Assembly
29 791-181857 Bushing Housing Assembly
30 791-181457 Outer Spool Assembly (includes 31)
31 791-181458 Retaining Ring
32 791-181561 Thrust Washer
33 791-181459 Small Spring
34 791-181461 Slider
35 791-181532 E-Clip
36 791-181531 Spring
37 791-181462 Plunger
38 791-181463 C-Clip
39 791-181464 Inner Reel
40 791-181465 Large Spring
41 791-181467 Foam Seal
42 791-181468 Bump Head Knob Assembly
(includes 40 & 41)
Optional Accessories
* 791-180120 Replacement Line, 0.095 Diameter
* 753-04218 Reel and Line Assembly
* 791-682075 Shoulder Strap Assembly
* Items Not Shown
Issued 9/02
30
38
36
34
31
32
33
35
37
39
40
41
42
5
1
2
3
4
1
6
8
7
9
10
11
12
13
14
15
17
18
19
16
21
20
28
27
26
24
23
22
25
29
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