Toro 74325 Parts Catalogue

Form Number 3352-219 Rev C

TimeCutter

Riding Mower

Model No. 74325 - 250000001 and up.

Parts Catalog

™

Z420

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 a represents the reference
number of the entire service assembly and the b
represents a sequential number unique to each part
within the service assembly.

© The Toro Company - 2009

Register your product at www.Toro.com

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.

Contents

Description Page

. . . . . . 3Frame Assembly

. . . . . . 4Seat Assembly

. . . . . . 5Control Assembly

. . . . . . 6Hydro and Belt Drive Assembly

. . . . . . 7LH Hydrostat Assembly Part No. 108-2394

. . . . . . 9RH Hydrostat Assembly Part No. 108-2393

. . . . . . 11Engine Assembly

. . . . . . 12Styling Assembly

. . . . . . 1342 Inch Deck Assembly

. . . . . . 1442 Inch Deck Decal Assembly No. 108-6103

. . . . . . 1542 Inch Deck Spindle and Belt Drive Assembly

. . . . . . 16Electrical Assembly

Cylinder Assembly Briggs and Stratton
286H77-0165-E1

Cylinder Head Assembly Briggs and Stratton
286H77-0165-E1

. . . . . . 17

. . . . . . 18

Description Page

Crankshaft Assembly Briggs and Stratton
286H77-0165-E1

Crankcase Assembly Briggs and Stratton
286H77-0165-E1

Oil Filter, Tube and Pump Assembly Briggs
and Stratton 286H77-0165-E1

Carburetor Assembly Briggs and Stratton
286H77-0165-E1

Governor Assembly Briggs and Stratton
286H77-0165-E1

Blower Housing Assembly Briggs and Stratton
286H77-0165-E1

Starter Assembly Briggs and Stratton 286H77­0165-E1

Gasket Assembly Briggs and Stratton 286H77­0165-E1

Carburetor Overhaul Kit Briggs and Stratton
286H77-0165-E1

Part Description Abbreviations

Part descriptions in this catalog may include the following abbreviations.

AR. . . . . . . . . . . . . . .as required

ASM. . . . . . . . . . . . . assembly

BBC. . . . . . . . . . . . . blade brake clutch

CARR. . . . . . . . . . . . carriage

CCW. . . . . . . . . . . . . counter clock wise

CW. . . . . . . . . . . . . . clockwise

DEG. . . . . . . . . . . . . degrees

ECM. . . . . . . . . . . . . electronic control module

EXT. . . . . . . . . . . . . .external

FH. . . . . . . . . . . . . . . flat head

GA. . . . . . . . . . . . . . gauge

HD. . . . . . . . . . . . . . heavy-duty

HF. . . . . . . . . . . . . . . hex flange

HH. . . . . . . . . . . . . . hex head

HHF. . . . . . . . . . . . . hex head flange

HHFTF. . . . . . . . . . . hex head flange thread forming

HJ. . . . . . . . . . . . . . . hex jam

HLH. . . . . . . . . . . . . hex lag head

HOC. . . . . . . . . . . . . height-of-cut

HSBH. . . . . . . . . . . . hex socket button head

HSFH. . . . . . . . . . . . hex socket flat head

HSH. . . . . . . . . . . . . hex socket head

HWH. . . . . . . . . . . . . hex washer head

HWHTF. . . . . . . . . . . hex washer head thread

HYD. . . . . . . . . . . . . hydraulic

LH. . . . . . . . . . . . . . . left hand

NI. . . . . . . . . . . . . . . nylon insert

NPTF. . . . . . . . . . . . national pipe thread fine

PFH. . . . . . . . . . . . . phillips flat head

PPH. . . . . . . . . . . . . phillips pan head

PPHTF. . . . . . . . . . . phillips pan head thread

PRH. . . . . . . . . . . . . phillips round head

PTH. . . . . . . . . . . . . phillips truss head

PTO. . . . . . . . . . . . . power-take-off

RH. . . . . . . . . . . . . . right hand

ROPS. . . . . . . . . . . . roll-over protection system

SFH. . . . . . . . . . . . . slotted fillister head

SHH. . . . . . . . . . . . . slotted hex head

SHWH. . . . . . . . . . . . slotted hex washer head

SPH. . . . . . . . . . . . . slotted pan head

SQH. . . . . . . . . . . . . square head

SRH. . . . . . . . . . . . . slotted round head

STD. . . . . . . . . . . . . standard

TAP. . . . . . . . . . . . . .self tapping

TTH. . . . . . . . . . . . . .torx truss head

. . . . . . 19

. . . . . . 20

. . . . . . 21

. . . . . . 22

. . . . . . 23

. . . . . . 24

. . . . . . 25

. . . . . . 26

. . . . . . 27

. . . . . . 28Attachments and Accessories List

forming

forming

Footnotes

n

Not illustrated

p

Optional Equipment

o

Not serviced separately

q

Obtain pa rts f rom www.b riggsand stratton.com

2

3352-219 Rev C

Ref Part No. Qty. Description

Frame1

1

Screw-HH4

4

Screw-CARR5

4

Bracket-Lift6

2

Nut-Lock, NI7

4

Bearing-Flange, Side8

2

Nut-HHF, Whiz9

4

Lift Arm ASM10

1

Spacer11

1

Pad-Antiskid12

1

Front Wheel And Tire ASM13

2

Tire13:1

1

Fitting-Lube, 45 DEG13:2

1

Stem-Valve13:3

1

Bushing-Flange13:5

2

Tube-Inner (W/Valve)13:99

1

Spanner-Wheel14

2

Screw-HH15

2

Nut-HF16

2

Castor Fork ASM17

2

Nut-Lock, NI18

9

Washer-Thrust19

2

Caster-LH20

1

Castor-RH21

1

np

108-2325-01
323-4
3229-1
105-3439
3296-42
1-633102
3290-357
105-3499-03
106-2222
105-3460
105-3471
105-1943
302-11
232-27
114-1640
93-4244
104-3667
325-22
32128-23
107-9119-01
3296-39
3-6498
105-6986-01
105-6985-01

Frame Assembly

Ref Part No. Qty. Description

302-5
28-2480
32151-103
61-9780
323-18
3256-24
105-3450
108-2317-03
106-8743
98-5975
106-2211
108-6109

10

2

Fitting-Grease22
Washer-Plain23

2

Ring-Retaining, EXT24

2

Cap-Hub25

2

Screw-HH26
Washer-Flat27

8

Grip-Lever, Lift28

1

Lever-Lift29

1

Decal30

1

Washer-Belleville31

2

Block-Lift33

1

Decal-Transport, Ce34

1

3

3352-219 Rev C

3

Ref Part No. Qty. Description

Nut-Lock, NI1

12
14

4

Washer-Flat2

6

Nut-Lock, NI3
Screw-HH4
RH Plate ASM5

1

LH Plate ASM6

1

Decal-HOC7

1

Screw-HH8

4

Bracket-Bellcrank9

2

Brace-Seat, Front10

1

Knob11

2

Washer-Pivot12

2

E-Ring13

1

Bracket-Seat14

1

Seat15

1

Decal-Services16

1

Pin-Pivot17

1

Screw-Shoulder18

2

Cap-Protector19

2

Nut-HF20

2

Spring-Compression21

2

Brace-Seat, Rear22

1

Strap-Tie23

1

Spacer-Nylon24

4

3296-42
3256-23
3296-29
322-4
106-2158-03
106-2159-03
108-2392
321-4
106-2180
105-6954-03
106-2240
5-4460
105-7004
105-6953-03
108-2329
106-8716
105-6955
613529
701178
32128-25
92-7054
108-2358-03
614249
107-4902

4

Seat Assembly

4

3352-219 Rev C

Ref Part No. Qty. Description

Rod-Brake, LH1

12

1

Rod-Brake, RH2

1

Washer-Thrust3

6

LH Activator Arm ASM5

1

Bushing5:2

4

RH Activator Arm ASM6

1

Bushing6:2

4

LH Pivot Shaft ASM7

1

RH Pivot Shaft ASM8

1

Nut-Lock, NI9

2

Washer-Flat10

2

Nut-Lock, NI11

2

Eccentric12

2

Screw-HH13

2

Damper-Control, Motion14

2

Bellcrank15

2

Pin-Cotter, Hair17

2

Stop-Adjustment18

2

Nut-Hex19

4

Washer-Flat21
Screw-HH22

4

Nut-Lock, NI23

8

Link-Brake24

2

Balljoint-RH25

2

105-7045
105-7044
105-3481

n

n

n

107-4909
105-3455
107-4910
105-3455
105-3488
105-3487
3296-53
3256-24
3296-59
107-4874
321-9
103-2913
106-2181
1-806003
105-3486
3217-6
3256-22
321-4
3296-42
106-2179
1-543017

Control Assembly

Ref Part No. Qty. Description

105-7048
3219-2
322-6
32128-20
106-2242
1-633257
105-3469
106-2214
105-3465
37-8771
3296-2
3274-52
106-8742
32128-25

Rod-Hydro26

2

Nut-Hex27

2

Screw-HH28

2

Nut-HF29

4

Handle ASM30

2

Grip-Control, Mot i o n30:2

1

Spring-Compression31

2

Bolt-Shoulder32

4

Spring-Compression33

2

Bolt-Shoulder34

4

Nut-Lock, NI35

2

Screw-HSH36

2

Decal37

2

Nut-HF38

2

5

3352-219 Rev C

5

Hydro and Belt Drive Assembly

Ref Part No. Qty. Description

Transaxle-Hydro, LH1

18
18

1

Transaxle-Hydro, RH2

1

V-Belt3

2

Spring4

2

Tab-Locking5

2

Screw-HHF6

2

Arm-Idler7

2

Pulley-Idler8

2

Nut-HF9

1

Bolt-Shoulder10

2

Washer-Flat11

2

Hydro Mount ASM12

1

Wheel And Tire ASM13

2

Rim13:1

1

Tire13:2

1

Stem-Valve13:3

1

Tube-Tire13:99

1

Washer-Flat14

2

Screw-HH15

2

Screw-HH16

4

Screw-HH17

4

Washer-Flat18
Nut-Lock, NI19
Screw-HH20

2

np

6

108-2394
108-2393
106-2174
95-3805
105-3438
3234-13
105-7047
106-2176
32128-25
37-8770
3256-3
107-4878-03
106-7004
242-76
106-7006
232-27
107-2491
3256-1
3210-5
322-20
322-13
3256-23
3296-29
322-7

Ref Part No. Qty. Description

5

5-4460
106-7001
106-7002
93-3818
93-3816
107-1701
322-5
322-13
105-7039-03
107-4875
1-806003
108-9533
242-50
3217-6

Washer-Pivot21
Washer-Wheel22

2

Vent Hose ASM24

2

Fitting ASM24:2

1

O-Ring24:2:1

1

Cap Vent ASM24:7

1

Screw-HH25

6

Screw-HH26

2

Support-Hydro28

2

Rod-Bypass30

2

Pin-Cotter, Hair31

2

Hub ASM32

2

Nut-Lug32:2

4

Nut-Hex33

2

A1

3352-219 Rev C

LH Hydrostat Assembly Part No. 108-2394

Ref Part No. Qty. Description

RH Main Housing ASM1

16

1

RH Side ASM2

1

Cylinder Block ASM3

1

Plug-Thread, Straight4

1

Pin-Hydrogear5

2

Screw-HHF6
Seal-Oil7

1

Bolt8

3

Seal-Lip9

1

Ring-Retaining, EXT10

2

Rod-Bypass11

1

Ring-Retaining, Int12

1

Arm-Bypass13

1

Ring-Retaining, EXT14

1

Swashplate-Trunnion15

1

Seal-Lip16

1

Stud17

1

Puck-Friction18

2

Arm-Control19

1

Washer-Pivot20

1

Screw21

1

Nut22

1

Spring-Block23

1

106-8695
106-8696
104-2106
104-2189
9004800-

2506
104-5305
104-5347
94-6926
106-8676
106-8677
106-8678
106-8679
107-2490
106-8681
104-5304
104-5313
104-2116
105-1873
106-8747
5-4460
107-2488
105-1872
94-1936

Ref Part No. Qty. Description

Washer-Thrust, Block24

94-1937
104-5306
104-5311
104-5307
104-5308
104-5310
104-5309
94-6922
104-5339
104-5340
104-5316
106-8683
104-5360
94-1933
104-5317
104-5318
104-5329
104-5328
106-8684
94-1943
104-5320
106-8685
104-5321
104-5322

1
1

Shaft-Input25
Bearing-Ball26

1

Ring-Retaining27

1

Spacer28

1

Seal-Lip29

1

Ring-Retaining30

2

Bearing-Thrust31

2

Washer-Flat32

1

Ring-Retaining33

1

Gear-Pinnion, 13T34

1

Shaft-Motor35

1

Washer-Shaft, M o t o r36

1

Washer37

2

Gear38

1

Gear-Jackshaft, 10T39

1

Pin-Jackshaft40

1

Ring-Retaining, Spiral41

1

Gear-Bull, 52T42

1

Washer43

1

Bearing-Sleeve44

1

Axle45

1

Bearing-Sleeve, Outboard46

1

Seal-Lip47

1

7

3352-219 Rev C

A1

LH Hydrostat Assembly Part No. 108-2394 (continued)

Ref Part No. Qty. Description

n

n

106-8686
106-8697
106-8698
106-8688
108-6190
104-2147
107-2489
106-8693
106-8694
110-8566
104-1754
105-1875
107-9122

Seal Kit48

1

RH Expansion Plate Kit49

1

Fan Pulley Kit50

1

Brake Arm Kit51

1

RH 7-Piston Center Section Kit53

1

Sealant54

1

Bypass Arm Kit55

1

Filter Kit57

1

Disc-Brake, Cog58

1

Fan-6 Inch, 10 Blade59

1

Pulley60

1

Nut-Lock61

1

Washer-Slotted62

3

8

A2

3352-219 Rev C

RH Hydrostat Assembly Part No. 108-2393

Ref Part No. Qty. Description

LH Main Housing ASM1

16

1

LH Side ASM2

1

Cylinder Block ASM3

1

Plug-Thread, Straight4

1

Pin-Hydrogear5

2

Screw-HHF6
Seal-Oil7

1

Bolt8

3

Seal-Lip9

1

Ring-Retaining, EXT10

2

Rod-Bypass11

1

Ring-Retaining, Int12

1

Arm-Bypass13

1

Ring-Retaining, EXT14

1

Swashplate-Trunnion15

1

Seal-Lip16

1

Stud17

1

Puck-Friction18

2

Arm-Control19

1

Washer-Pivot20

1

Screw21

1

Nut22

1

Spring-Block23

1

106-8674
106-8675
104-2106
104-2189
9004800-

2506
104-5305
104-5347
94-6926
106-8676
106-8677
106-8678
106-8679
107-2490
106-8681
104-5304
104-5313
104-2116
105-1873
106-8747
5-4460
107-2488
105-1872
94-1936

Ref Part No. Qty. Description

Washer-Thrust, Block24

94-1937
104-5306
104-5311
104-5307
104-5308
104-5310
104-5309
94-6922
104-5339
104-5340
104-5316
106-8683
104-5360
94-1933
104-5317
104-5318
104-5329
104-5328
106-8684
94-1943
104-5320
106-8685
104-5321
104-5322

1
1

Shaft-Input25
Bearing-Ball26

1

Ring-Retaining27

1

Spacer28

1

Seal-Lip29

1

Ring-Retaining30

2

Bearing-Thrust31

2

Washer-Flat32

1

Ring-Retaining33

1

Gear-Pinnion, 13T34

1

Shaft-Motor35

1

Washer-Shaft, M o t o r36

1

Washer37

2

Gear38

1

Gear-Jackshaft, 10T39

1

Pin-Jackshaft40

1

Ring-Retaining, Spiral41

1

Gear-Bull, 52T42

1

Washer43

1

Bearing-Sleeve44

1

Axle45

1

Bearing-Sleeve, Outboard46

1

Seal-Lip47

1

9

3352-219 Rev C

A2

RH Hydrostat Assembly Part No. 108-2393 (continued)

Ref Part No. Qty. Description

n

n

106-8686
106-8687
105-1928
106-8688
108-6189
104-2147
107-2489
106-8693
106-8694
105-1927
105-1896
105-1875
104-2120

Seal Kit48

1

LH Expansion Plate Kit49

1

Fan Pulley Kit50

1

Brake Arm Kit51

1

LH 7-Piston Cent e r S ection Kit53

1

Sealant54

1

Bypass Arm Kit55

1

Filter Kit57

1

Disc-Brake, Cog58

1

Fan59

1

Pulley60

1

Nut-Lock61

1

Screw62

3

10