Toro 51904 Parts Catalogue
FORM NO. 3319-602
MODEL NO. 51904-7900001 & UP
PARTS
CATALOG
18" TRIMMER
4
5
25
6
14
11
3
2
1
7
15
16
13
12
8
9
10
17
20
21
22
23
BOOM AND TRIMMER ASSEMBLY
Ref.
No.
DescriptionPart No.
1 180981 Throttle Housing
& Trigger Asm. 1
2 610314 Throttle Trigger Spring 1
3 180975 Throttle Trigger 1
4 181582 Throttle Cable Housing 1
5 610315 Throttle Cable 1
6 145819 D-Handle 1
7 181587 D-Handle Hardware Asm. 1
8 92-3286 Drive Shaft Housing Asm. 1
9 153597 Clamp Asm. 1
10 682064 Flexible Drive Shaft 1
11 181560 Palnut 1
12 153312 Bushing Housing Asm. 1
13 180531 Guard Mounting Screw Asm. 4
14 153646 Guard and Blade Asm.
(Incl. Ref. #16) 1
No.
Used
18
19
C-2530
Ref.
No.
DescriptionPart No.
No.
Used
15 145569 Anti-Rotation Screw 1
16 682061 Blade Asm. 1
17 153313 Spool Shaft 1
18 153619 Outer Spool and Eyelet Asm. 1
19 145566 Eyelet 1
20 612026 Retainer 1
21 610317 Spring 1
22 610318 Inner Reel 1
23 682069 Bump Head Knob Asm. 1
25 92-3328 Decal - Safety Symbols 1
682075 Shoulder Strap Asm. 1
610375 Monoflail Cutting Line,
50 ft (.080 line) 1
92-3450 Spool and Line (25 ft) Asm. 1
66-2090 Toro 2-Cycle Oil 1
Not Illustrated
Optional Accessories
The TORO Company - 1997
All Rights Reserved
TPS
3319-602
4
1
5
7
9
49
19
1617
42
20
11
13
2
3
6
8
10
12
14
37
38
36
39
35
33
21
40
41
34
18
22
15
23 24 25 26 27 28
47
43
48
46
32
29
30
31
44
45
C-2531
ENGINE ASSEMBLY
Ref.
No.
1 180349 Carburetor/Air Cleaner Asm.
DescriptionPart No.
(Incl. Ref. #2) 1
2 180350 Air Cleaner Filter 1
3 180351 Carburetor Mounting
Screw Assembly 2
4 180352 Wavey Washer 1
5 180353 Choke Lever & Plate 1
6 180528 Carburetor Asm. 1
7 682048 Throttle Adj. Asm. (Walbro) 1
7 180092 Throttle Adj. Asm. (Zama) 1
8 610675 Carburetor Gasket 1
9 683974 Primer and Hose Asm. 1
10 180354 Carburetor Mount Asm. 1
11 147573 Reed Asm. 1
12 181498 Power Shaft Asm. 1
13 612115 Carburetor Mount Gasket 1
14 180026 Crankcase Service Asm.
(Incl. Ref. #12) 1
15 145308 Front Mounting Pad 1
16 181502 Fuel Tank Asm.
(Incl. Ref. #18-20) 1
17 612134 Rear Mounting Pad 1
18 181168 Return Line 1
19 180000 Fuel Cap Asm. 1
20 682039 Fuel Line Asm 1
21 683065 Shroud Asm. 1
No.
Used
Ref.
No.
DescriptionPart No.
No.
Used
22 683078 Shroud Extension & Stand 1
23 180929 Flywheel Asm. 1
24 610303 Square Drive Nut 1
25 683856 Recoil Pulley Asm. 1
26 613102 Recoil Spring 1
27 153644 Pulley Retainer Asm. 1
28 611061 Rope Guide 1
29 610300 Pull Handle 1
30 613103 Rope 1
31 683064 Starter Housing Asm. 1
32 153597 Clamp Asm. 1
33 683390 Module Asm. 1
34 611063 Ground Tab 1
35 610311 Spark Plug 1
36 180980 Exhaust Gasket 1
37 181571 Muffler Mounting Bolt Asm. 2
38 181572 Muffler Asm.(Incl. Ref. #37) 1
39 180063 Cylinder Asm. 1
40 684449 Piston & Rod Asm. 1
41 610674 Cylinder Gasket 1
42 181500 Engine Cover 1
43 180230 Engine Cover Screws 2
44 683069 Switch 1
45 683068 Lead Wires 1
46 92-3342 Decal - Toro Housing 1
47 92-3332 Decal - Warning 1
2
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