Toro 74235 Parts Catalogue
Form No. 3327-790
Z255
Z Master with 72” SFS Side Discharge Mower
Model No. 74235—220000001 and Up
Parts Catalog
Ordering Replacement Parts
To order replacement parts, please supply: the part
number, the quantity, and the description of each
part desired.
Understanding Reference Numbers
Each identified part in an illustration has a reference
number. The reference number for a part also appears in
the parts list, along with other information about the part.
This catalog uses two special reference number formats,
one to indicate parts in a service assembly and another
to indicate the quantity of a given part in an illustration.
Service Assembly Reference Numbers
Parts in service assemblies have reference numbers in
the form a:b.
the entire service assembly and the b represents a
sequential number unique to each part within the service
assembly.
The a represents the reference number of
The TORO Company — 2002
All Rights Reserved
For example, a wheel assembly might be identified by
reference number 6, the tire by 6:1, the valve by 6:2,
and the wheel by 6:3. When you order the assembly
identified by reference number 6, you receive all parts
identified by reference numbers 6:1, 6:2, and 6:3.
However, you may also order any part individually.
Reference numbers of this type appear in illustrations
and in part lists.
Reference Numbers Indicating Quantity
In an illustration, if a reference number indicates more
than one part, the reference number has the form nX y.
The n represents the quantity of the part, the X is the
multiplication symbol, and the y represents the reference
number.
For example, in an illustration, the reference number
2X 37 means that two of the parts identified by reference
number 37 are indicated.
3327–790
Contents
Description Page Description Page
Front Frame Assembly 4. . . . . . . . . . . . . . . . . . . . .
Caster and Wheel Assembly 5. . . . . . . . . . . . . . . .
Main Frame Assembly 6. . . . . . . . . . . . . . . . . . . . .
Brake and Wheel Hub Assembly 7. . . . . . . . . . . .
Steering Control Assembly 8. . . . . . . . . . . . . . . . .
Hydraulic System Assembly 9. . . . . . . . . . . . . . . .
Seat Assembly 11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deck Connection Assembly 12. . . . . . . . . . . . . . . . .
Drive Idler Assembly 13. . . . . . . . . . . . . . . . . . . . . . .
Z–Stand Assembly 14. . . . . . . . . . . . . . . . . . . . . . . .
Engine and Clutch Assembly 15. . . . . . . . . . . . . . . .
Guard Assembly 16. . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel System Assembly 17. . . . . . . . . . . . . . . . . . . . .
Electrical System Assembly 18. . . . . . . . . . . . . . . . .
Deck, Deflector and Roller Assembly 19. . . . . . . . .
Spindle and Pulley Assembly 20. . . . . . . . . . . . . . .
Belt and Idler Arm Assembly 21. . . . . . . . . . . . . . . .
Electrical Schematic 22. . . . . . . . . . . . . . . . . . . . . . .
Cylinder/Crankcase Assembly
Kawasaki FH721D–AS05 23. . . . . . . . . . . . . . . .
Piston/Crankshaft Assembly
Kawasaki FH721D–AS05 24. . . . . . . . . . . . . . . .
Valve/Camshaft Assembly
Kawasaki FH721D–AS05 25. . . . . . . . . . . . . . . .
Lubrication Equipment Assembly
Kawasaki FH721D–AS05 26. . . . . . . . . . . . . . . .
Cooling Equipment Assembly
Kawasaki FH721D–AS05 27. . . . . . . . . . . . . . . .
Electric Equipment Assembly
Kawasaki FH721D–AS05 28. . . . . . . . . . . . . . . .
Control Equipment Assembly
Kawasaki FH721D–AS05 29. . . . . . . . . . . . . . . .
Carburetor Assembly
Kawasaki FH721D–AS05 30. . . . . . . . . . . . . . . .
Air Filter/Muffler Assembly
Kawasaki FH721D–AS05 31. . . . . . . . . . . . . . . .
Fuel Tank/Fuel Valve Assembly
Kawasaki FH721D–AS05 32. . . . . . . . . . . . . . . .
Starter Assembly
Kawasaki FH721D–AS05 33. . . . . . . . . . . . . . . .
P.T.O. Equipment Assembly
Kawasaki FH721D–AS05 34. . . . . . . . . . . . . . . .
Label Assembly
Kawasaki FH721D–AS05 35. . . . . . . . . . . . . . . .
Accessories
Description Model / Part No. Description Model / Part No.
Suspension Seat Kit 99–8522. . . . . . . . . . . . . . . . . . . .
Hitch Kit 99–8925. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Atomic Blade Assembly 104–1304. . . . . . . . . . . . . . . .
Striping Kit 30163. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recycler Kit 100–9678. . . . . . . . . . . . . . . . . . . . . . . . . .
2
Part Description Abbreviations
Part descriptions in this catalog may include the following abbreviations.
Abbreviation Meaning Abbreviation Meaning
AR as required. . . . . . . . . . . . . . . . .
ASM assembly. . . . . . . . . . . . . . . .
CARR carriage. . . . . . . . . . . . . .
DEG degrees. . . . . . . . . . . . . . . .
FH flat head. . . . . . . . . . . . . . . . .
GA gauge. . . . . . . . . . . . . . . . .
HF hex flange. . . . . . . . . . . . . . . . .
HH hex head. . . . . . . . . . . . . . . . .
HHF hex head flange. . . . . . . . . . . . . . . .
HLH hex lag head. . . . . . . . . . . . . . . .
HJ hex jam. . . . . . . . . . . . . . . . . .
HOC height-of-cut. . . . . . . . . . . . . . . .
HS hex socket. . . . . . . . . . . . . . . . .
HSBH hex socket button head. . . . . . . . . . . . . .
HSFH hex socket flat head. . . . . . . . . . . . . . .
HSH hex socket head. . . . . . . . . . . . . . . .
HWH hex washer head. . . . . . . . . . . . . . .
HWHTF hex washer head. . . . . . . . . . . . .
thread forming
HYD hydraulic. . . . . . . . . . . . . . . .
INC incorporated. . . . . . . . . . . . . . . . .
LH left hand. . . . . . . . . . . . . . . . .
NI nylon insert. . . . . . . . . . . . . . . . . .
PPH Phillips pan head. . . . . . . . . . . . . . . .
PTH Phillips truss head. . . . . . . . . . . . . . . .
PTO power take off. . . . . . . . . . . . . . . .
RH right hand. . . . . . . . . . . . . . . . .
SFH slotted fillister head. . . . . . . . . . . . . . . .
SHH slotted hex head. . . . . . . . . . . . . . . .
SQH square head. . . . . . . . . . . . . . . .
SHWH slotted hex washer head. . . . . . . . . . . . . .
SPH slotted pan head. . . . . . . . . . . . . . . .
SRH slotted round head. . . . . . . . . . . . . . . .
STD standard. . . . . . . . . . . . . . . .
TAP self tapping. . . . . . . . . . . . . . . .
TTH Torx truss head. . . . . . . . . . . . . . . .
WH wing head. . . . . . . . . . . . . . . . .
3327–790
3
3327–790
3:5
3:2
1:6
37
22
22
1:5
21
18
19
11
10
15
25
27
17
16
10
24
20
5
6
7
35:2
35:3
8
12
35:4
35:3
1:2
9
10
35:3
35:5
14
35:6
24
35:4
35:5
23
35:3
35:1
26
35
3
25
3:4
3:3
Sheet No.: 2
10
11
36
24
1:4
24
1:7
1
1:3
Front Frame Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 104–5133 1 Frame ASM
1:2 1–633818 1 Decal–Warning
1:3 1–811010 2 Plug
1:4 302–19 5 Fitting–Grease
1:5 94–1291 2 Bushing–Special
1:6 104–7759 1 Decal–Warning
1:7 103–1918 1 Bushing
3 100–6509 1 Floorpan ASM
3:2 1–633553 3 Pad–Antiskid
3:3 1–633766 1 Decal–Check
3:4 98–5954 1 Decal–Missing, Cover
3:5 1–633737 1 Decal–Z–Master
5 103–2083–03 1 Lever–Lift
6 1–633295 1 Grip–Lever, Lift
7 103–2064–03 1 Arm–Lift, Deck
8 1–633325 1 Spring–Compression
9 3256–24 1 Washer–Flat
10 3296–39 5 Nut–Lock, NI
11 32151–103 5 Ring–Snap
12 1–633068 2 Arm–Lift, Deck
14 323–29 2 Screw–HH
15 1–633889–01 1 Plate–Lift, Deck
16 1–632899–01 1 Plate–Lift, Deck
17 1–633082 1 Bushing–Lever, Lift
18 1–633080 1 Bushing–Lever, Lift
19 323–13 1 Screw–HH
20 1–633097 1 Pin–Hitch W/Lanyard
21 1–806005 1 Pin–Hair
22 323–9 2 Screw–HH
23 98–5975 12 Washer–Belleville
24 3290–357 17 Nut–HHF
25 323–6 3 Screw–HH
26 323–7 12 Screw–HH
27 3256–29 4 Washer–Flat
35 2 Front Frame Spring
ASM
35:1 1–633096 1 Rod–Lift, Deck
35:2 1–633441 2 Swivel–Deck Mount,
Rear
35:3 3217–11 4 Nut–Hex
35:4 3218–6 2 Nut–Jam
35:5 3256–7 2 Washer–Flat
35:6 1–633064 1 Spring–Support, Deck
36 1–633706 1 Decal–Height, Deck
37 1–633345 1 Decal–Height, Deck
Not serviced separately
4
11:2
11:1
11:3
5
4
7
8
22
20
18
17
1
2
3
4
5
19
3327–790
11:5:1
11:5:2
11:5
11
11:5:3
11:4
Caster and Wheel Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–543513 2 Cap–Grease
2 3296–51 2 Nut–Lock, NI
3 1–633508 6 Washer–Bellville
4 254–94 4 Bearing–Cone, Taper
5 254–72 4 Bearing–Cup, Tapered
7 1–543511 2 Seal–Grease
8 103–1474–01 2 Fork–Caster
11 1–644251 2 Caster Wheel ASM
11:1 1–633580 2 Seal–Bearing
11:2 1–633581 2 Spacer–Bearing
11:3 1–633585 2 Bearing–Cone, Taper
11:4 1–633959 1 Spacer–Caster, Front
11:5 1 Wheel & Tire ASM
11:5:1 1–523009 1 Tire
11:5:2 1–633987 1 Wheel
11:5:3 1–633584 2 Bearing–Cup
17 100–4333–01 1 Lever–Lift, Deck
18 1–643220–01 1 Strap
19 3289–7 2 Screw
20 32128–20 2 Nut–HF
21 325–39 2 Screw–HH
22 3296–45 2 Nut–Lock, NI
21
Sheet No.: 3
5
3327–790
26
13:2
13
22
42
13:4
25
27
24
11:2
9
19
28
11
15
10
13:3
4
13:5
44
5
29
Main Frame Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–633964–03 1 Stop–Brake, Park
4 322–3 6 Screw–HH
5 323–6 2 Screw–HH
9 1–633696 1 Cable–Throttle
10 1–603336 1 Control–Choke
11 105–6120 1 Rear Frame ASM
11:2 103–2433 1 Decal,Top Console
12 1–633970 2 Wheel & Tire ASM
12:1 1–633993 1 Tire
12:2 1–633992 1 Wheel
13 99–4623 1 Console ASM
13:2 100–4311 1 Decal–Panel, Control
13:3 103–0262 1 Decal–Valve, Fuel
13:4 98–4387 1 Decal–Protection, Ear
13:5 104–8172 1 Decal–Mobil 1
15 242–50 8 Nut–Lug
19 3296–2 2 Nut–Lock
21 3296–39 2 Nut–Lock, NI
22 1–807513 2 Bolt–CARR
24 1–513762 1 Clip–Loom
25 1–303335 1 Tie–Plastic
26 1–513592 1 Knob–Ball
27 321–4 1 Screw–HH
28 32128–33 1 Nut–HF
29 1–513658 2 Bumper–Catcher,
Grass
21
1
12:1
12:2
Sheet No.: 4
12
42 1–633736 1 Decal–Toro, Z255
44 3256–23 6 Washer–Flat
6
24
12
27
5
27
13
19
23
19
13
23
11
3
3327–790
27
22
1
1
4:2
25
1
4
19
27
18
13
Brake and Wheel Hub Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–513140 2 Bearing–Control
2 1–633454 2 Spring–Brake
3 1–633477 3 Rod–Brake
4 1–634500 1 Brake Lever ASM
4:2 1–633268 1 Grip–Lever, Brake
5 1–632217–03 1 Shaft–Brake
6 103–0354–03 2 Bracket–Brake
7 1–523157 2 Washer–Spacer
9 103–0355 2 Band–Brake
10 1–633060 4 Spacer–Wheel, Short
11 1–633062 4 Spacer–Wheel, Long
12 1–633102 2 Bearing–Flange, Side
13 1–633131 4 Yoke–Linkage, Brake
14 1–633144 2 Pin–Trunion
15 103–0590 2 Hub–Wheel
15:1 103–0589 1 Hub–Wheel
15:2 1–633926 4 Stud–Wheel
18 323–4 4 Screw–HH
19 1–808285 4 Pin–Clevis
20 325–20 8 Screw–HH
21 302–19 2 Fitting–Grease
22 103–0131 8 Nut–Square
23 3219–3 8 Nut–HH
24 3290–357 4 Nut–HHF
25 3253–7 8 Washer–Lock
26 3256–4 4 Washer–Flat
23
10
20
15
15:1
15:2
3
23
26
26
2
21
14
6
30
9
31
29
7
28
Sheet No.: 5
27 3272–10 7 Pin–Cotter
28 1–806800 2 Pin–Cotter
29 322–9 6 Screw–HH
30 103–0384 6 Spacer
31 103–0374 2 Retainer–Band, Brake
7
3327–790
2
11 RH
37 LH
18
25
14
22
21
11:1 RH
37:1 LH
23
34
34
34
3
8
8
5
7
6
8
15
20
4
30
12
34
24
16
35
34
3
34
20
17
27
30
13
1
34
32
26
29
26
28
26
33
34
Sheet No.: 6
Steering Control Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–303105 2 Yoke–Adjustable
2 98–5975 4 Washer–Belleville
3 1–523027 2 Damper–Control
4 1–543017 2 Balljoint–RH
5 1–603735 2 Bushing–Flanged
6 1–603737 2 Bolt–Return, Neutral
7 1–603807 2 Spring–Return,
Neutral
8 1–403180 4 Screw–HH
11 103–0632 1 RH Lever ASM
11:1 1–633257 1 Grip–Control, Motion
12 1–632208 2 Arm–Control, Pump
13 1–642319 1 Control–Motion, LH
14 1–642320 1 Control–Motion, RH
15 1–633153 2 Linkage–Pump/Lever
16 1–633102 4 Bearing–Flange, Side
17 1–633152 2 Balljoint–Thread, LH
18 103–0407 2 Arm–Shaft, Control
20 322–6 4 Screw–HH
21 323–4 8 Screw–HH
22 323–6 4 Screw–HH
23 323–9 6 Screw–HH
24 1–803022 2 Screw
25 3296–39 6 Nut–Lock, NI
26 3219–2 10 Nut–Hex
27 1–804524 2 Nut
28 3220–2 2 Nut
29 3256–2 2 Washer–Flat
30 3256–3 4 Washer–Flat
32 3272–5 2 Pin–Cotter
33 1–808280 2 Pin–Clevis
34 32128–20 16 Nut–HF
35 3290–357 8 Nut–HHF
37 103–0631 1 LH Lever ASM
37:1 1–633257 1 Grip–Control, Motion
8
3327–790
11
17
17
24
14
10
10:1
51
21
14:1
50
10:2
20
3
49
22
26:1
6
26
16
19:1
19
25
1
17
46
40
7
2
17
27
41
28
2:1:1
47
21
21:1
35
43
2:1:2
2:2
20:1
18:1
18
16
21:2
31
48
47
34
20
42
47
13
39
47
45
33:1
33:1
33:3
40
46
38
51
16
29
7:1
7
36
12
30
37
44
33
41
28
22
1
10
32
Hydraulic System Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–633776 2 Hose–Upper
2 103–1947 1 HYD Reservoir ASM
2:1 1 Reservoir–HYD
2:1:1 103–1948 1 Cap–HYD Reservoir
2:1:2 103–1949 1 Gasket–Cap
2:2 1–523552 1 Decal–Tank, Hydraulic
3 104–7836 1 Head–Filter
6 1–633750 1 Filter–HYD
6 1–633752 1 Filter–HYD, Winter
7 103–1799 2 Elbow–90
7:1 237–42 1 O–Ring
10 1–633786 4 Fitting–90
10:1 237–80 1 O–Ring
10:2 1–603992 1 O–Ring
11 1–523328 2 Motor–Wheel
11:1 1–809036 1 Nut–HH
11:2 3257–42 1 Key–Woodruff
*11:99 103–2748 1 Kit–Link, Drive
*11:99 1–000139 1 Kit–Bearing
*11:99 1–000099 1 Kit–Seal
12 1–603384 1 Bushing–Pivot, Idler
13 1–633151 1 Spring–Extension
14 103–1828 1 Adapter–Run, Tee
14:1 237–42 1 O–Ring
16 103–1716 3 Clamp–Hose
17 103–1988 4 Clamp–Hose
11
11:1
Sheet No.: 7
11:2
18 103–1801 1 Adapter–Straight
18:1 237–42 1 O–Ring
19 103–1912 1 Adapter–Straight
19:1 237–42 1 O–Ring
20 103–1802 2 Elbow–90
20:1 237–42 1 O–Ring
21 1–603990 4 Fitting–Straight
21:1 237–79 1 O–Ring
21:2 1–603992 1 O–Ring
22 103–1863 2 Hose–Lower
24 103–1826 1 HYD Hose ASM
25 103–1808 1 Hose–HYD
26 103–1807 1 Elbow–45
26:1 237–42 1 O–Ring
27 103–1806 1 HYD Hose ASM
28 1–633568 2 Sheave
29 1–633567 1 Sheave
30 1–633749 1 Belt–Drive, Pump
31 1–633167 1 Sheave–Idler
32 103–1827 1 HYD Hose ASM
33 1–634277 1 Bearing Arm ASM
33:1 1–513034 2 Sleeve–Bearing
33:3 302–40 1 Fitting–Grease
34 321–6 2 Screw–HH
35 323–8 1 Screw–HH
36 323–9 1 Screw–HH
Not serviced separately
* Not illustrated
9
3327–790
11
17
17
24
14
10
10:1
51
21
14:1
50
10:2
20
3
49
22
26:1
6
26
16
19:1
19
25
1
17
46
40
7
2
17
27
41
28
2:1:1
21
35
47
2:2
21:1
31
43
2:1:2
20:1
18:1
18
16
21:2
48
47
34
20
42
47
13
39
47
45
33:1
33:1
33:3
40
46
38
51
16
29
7:1
7
36
12
30
37
44
33
41
28
22
1
10
32
Hydraulic System Assembly (Continued)
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
37 1–800805 1 Screw–HH
38 323–7 4 Screw–HH
39 1–803022 2 Screw
40 30–1710 2 Screw
41 1–803050 2 Screw–Set
42 3256–22 2 Washer–Flat
43 3256–3 1 Washer–Flat
44 3256–4 1 Washer–Flat
45 13–2840 1 Key–Square
46 1–807272 2 Key–Machine
47 3290–357 8 Nut–HHF
48 32128–33 2 Nut–HF
49 1–805004 2 Washer–Lock
50 321–3 2 Screw–HH
51 103–2675 2 Pump, Hydraulic
*51:1 103–2664 1 Kit–Shaft, Input
*51:2 103–2665 1 Kit–Bearing, Thrust
*51:3 103–2666 1 Kit–Block, Cylinder
*51:4 105–6185 1 Plate–Valve
*51:5 105–6184 1 Kit–Overhaul, Seal
*51:7 106–2053 1 Kit–Valve, Shock
11
11:1
Sheet No.: 7
11:2
* Not illustrated
10
34
2:3
2:4
2:7
2:2
2
2:5
2:1
2:6
23
16
17
20
32
31
3330
3327–790
21
14
Seat Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
2 1–633705 1 Seat W/Tracks
2:1 103–0290 1 Cushion–Bottom, Seat
2:2 104–7754 1 Cushion–Back, Seat
2:3 1–633710 1 Cushion–Armrest, RH
2:4 1–633711 1 Cushion–Armrest, LH
2:5 1–543401 4 Spacer–Track
2:6 1–643255 1 Track–Seat
2:7 1–633859 1 Frame–Seat
14 1–632187–03 1 Frame–Seat
16 1–633293 1 Rod–Holdup, Seat
17 322–5 1 Screw–HH
18 323–39 2 Screw–HH
20 3296–29 1 Nut–Lock, NI
21 3296–39 2 Nut–Lock, NI
23 32128–20 4 Nut–HF
30 2412–133 2 R–Clamp
31 32104–76 2 Screw
32 3256–16 2 Washer–Flat
33 74–0720 1 Tube–Manual
34 99–4693 1 Decal–Toro
18
Sheet No.: 8
11
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