Toro 74816 Parts Catalogue

Form Number 3359-831 Rev B

Titan Z4800 Zero-Turn-Radius

Riding Mower

Model No. 74816 - 280000001 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 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 - 2008

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

. . . . . . 3Seat Assembly

. . . . . . 4Frame Assembly

. . . . . . 6Motion Control and Brake Assembly

. . . . . . 7Fuel Tank Assembly

. . . . . . 8Engine Assembly

. . . . . . 9Transmission Assembly

LH Hydro Transmission Assembly No. 109­3372

RH Hydro Transmission Assembly No. 109­3371

. . . . . . 10

. . . . . . 12

. . . . . . 1448 Inch Deck Assembly

. . . . . . 1548 Inch Deck Assembly No. 109-6253

. . . . . . 1648 Inch Deck and Discharge Assembly

. . . . . . 17Anti -Scalp Roller Assembly No. 109-6388

. . . . . . 18Cutter Housing Assembly No. 109-8744

. . . . . . 19Washout Port Assembly No. 109-6393

. . . . . . 20Rubber Deflector Assembly No. 114-1651

. . . . . . 21Electrical Assembly

Description Page

Head, Valve and Breather Assembly Kohler
SV820-0012

Oil Pan and Lubrication Assembly Kohler
SV820-0012

Ignition and Electrical Assembly Kohler
SV820-0012

Air Intake and Filtration Assembly Kohler
SV820-0012

Decals and Overhaul Gaskets Kohler SV820­0012

Part Description Abbreviations

Part descriptions in this catalog may include the following abbreviations.

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

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

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

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

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

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

forming

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

. . . . . . 22Crankshaft Assembly Kohler SV820-0012

. . . . . . 23Crankcase Assembly Kohler SV820-0012

. . . . . . 24

. . . . . . 26

. . . . . . 27

. . . . . . 28Blower Housing Assembly Kohler SV820-0012

. . . . . . 29Starter Assembly Kohler SV820-0012

. . . . . . 30Fuel System Assembly Kohler SV820-0012

. . . . . . 31Engine Control Assembly Kohler SV820-0012

. . . . . . 32

. . . . . . 33

. . . . . . 34Attachments and Accessories List

forming

Footnotes

n

Not illustrated

p

Obtain from your local Kohler dealer

o

Not serviced separately

8

3359-831 Rev B

Ref Part No. Qty. Description

Seat Plate ASM1

1

Cable-Stop, Seat2

1

Screw-HH3

2

Nut-HF4

2

Seat ASM5

1

Seat Track Kit5:1

1

Seat5:2

1

Armrest Kit5:6

1

LH Armrest Kit5:6:1

1

RH Armrest Kit5:6:2

1

Screw-HSBH5:6:3

6

Nut-Flange, NI6

8

Bumper-Seat7

2

Screw-Shoulder8

2

Decal9

1

Decal-Service Aid10

1

no

109-6916
109-2628
321-5
104-7201
109-6184
107-1880
109-6381

110-6569
110-6570
108-6179
104-8300
103-9376
27-0410
99-2385
109-6016

Seat Assembly

3

3359-831 Rev B

6

Ref Part No. Qty. Description

Frame ASM1

16

21
10

1

Decal-Drive Release1:2

2

Decal-Surface, Hot1:3

2

Decal-Safety1:4

1

Seat Box ASM2

1

Decal-Motion Control2:2

1

Decal-Control Brake2:3

1

Decal-Fuse Block2:4

1

Decal-Belt Routing2:5

1

Decal-Danger2:6

1

Screw-HWHTF3
Bearing-Ball4

4

Caster Fork ASM5

2

Washer6

2

Screw-HHF7

5

Caster Wheel ASM8

2

Wheel-Caster8:1

1

Spanner-Wheel8:2

1

Screw-HH8:3

1

Washer8:4

2

Nut-Lock, NI8:5

1

Bearing-Flange9

4

Nut-Flange, NI10
Screw-HH11

109-8825
109-6008
106-5517
109-8965
109-8845
109-9182
109-9173
109-9120
109-6014
109-6210
32144-70
109-3678
109-6218-01
109-3724
3234-47
109-6405
105-1863
104-3667
325-20
92-2651
3296-45
109-3667
104-8300
322-5

4

Frame Assembly

Ref Part No. Qty. Description

109-6045-03
3230-23
109-6867-03
109-3406-03
109-3381-03
109-3391-03
109-5444-03
109-5432
109-5441
109-5442
109-8870-03
109-8871-03
114-1658-03
9266714
3234-5
104-8301
3231-9
3256-3
109-8758
109-8759
109-5819
3256-26
32120-47
109-8755

1

Bracket-Tank Mount12
Screw-CARR13

2

Bracket-Rear Tank, LH14

1

Bracket-Rear Console, RH15

1

Guard-Engine, LH16

1

Guard-Engine, RH17

1

Casting-Rear18

1

Panel-Front19

1

Fender-LH20

1

Fender-RH21

1

Front Shaft ASM22

1

Rear Shaft ASM23

1

Guard-Muffler24

1

Screw-HWH25

6

Screw-HHF26

6

Nut-Flange, NI27

4

Screw-CARR28

4

Washer-Flat29

2

Height Adjustment ASM30

1

Decal-Cut Height30:2

1

Pin-Clevis31

2

Washer-Flat32

3

Ring-Retaining, External33

3

Stop-Height Adjust34

1

6

3359-831 Rev B

Frame Assembly (continued)

Ref Part No. Qty. Description

Arm-Float Link35

109-5814
109-5818
109-6172
93-4696
109-6177
109-5486
109-5487
109-5488
242-50
109-6190-03
99-6810
92-7054
109-6214
1-303435
321-2
109-9142
109-9143

1

Pin-Pivot36

1

Pin-Clevis37

1

Pin-Hitch38

1

Pin-Spring39

1

Wheel And Tire ASM40

2

Wheel40:1

1

Tire40:2

1

Nut-Lug41

8

Cover-Hydro Fan42

1

Screw-HH43

2

Spring-Compression44

3

Stop-Motion Control45

2

Washer-Spring46

4

Screw-HH47

4

Decal-Front Panel48

1

Decal-Titan Z50

1

5

3359-831 Rev B

7

Motion Control and Brake Assembly

Ref Part No. Qty. Description

LH Motion Control Pivot ASM1

109-6915
109-6914
103-9928
52-2900
109-3689
5-0838
323-9
104-8301
109-7098
109-5192
109-7099
109-5192
98-5975
323-6
109-3414
2411-53
322-6
104-8300
109-3728
37-8771
3220-2
3220-20
109-6220
109-3705

6

1

RH Motion Control Pivot ASM2

1

Bearing3

4

Washer-Plastic4

8

Post-Lever Moun t5

2

Washer6

4

Screw-HH7

4

Nut-Flange, NI8

4

RH Lever And Grip ASM9

1

Grip-Control Lever9:2

1

LH Lever And Grip ASM10

1

Grip-Control Lever10:2

1

Washer-Belleville11

4

Screw-HH12

4

Rod-Steering13

2

Bearing-Rod End, LH14

2

Screw-HH15

2

Nut-Flange, NI16

4

Nut-Rod Adjustment17

2

Bolt-Shoulder18

2

Nut-Jam19

2

Nut-Jam20

2

Brake Pivot ASM21

2

Pin-Control Pivot22

2

Ref Part No. Qty. Description

2

12

Pin-Cotter23
Nut-HF24
Screw-HH25

4

Damper-Mot ion Control26

2

Tube-Brake Pivot27

1

Lever ASM28

1

Grip-Lever, Brake28:2

1

Bushing-Flange, Keyed29

2

Bellcrank ASM30

1

E-Ring31

4

Spacer32

1

Bolt-CARR33

1

Nut-HF34

1

Spacer35

1

Brake Shaft ASM36

1

Link-Brake Actuation37

2

Arm-Brake38

1

Spacer39

1

Pin-Clevis40

2

Spring-Extension41

2

3272-10
32128-20
1-403180
109-5957
109-5825
109-5918
1-633268
107-7581
109-5824
701197
109-5834
109-5868
104-7201
109-5914
109-8765
109-6907
109-5833
99-4958
109-6887
1-603693

9

3359-831 Rev B

Ref Part No. Qty. Description

Fuel Tank ASM1

109-5510
103-2605
109-0346
109-3412
3230-3
3256-23
1-633349
3296-47
3230-16
104-8300
1-303077
105-1853
109-0304
1-603770
109-0286

1

Fitting-Fuel, Bulkhead1:1

1

Cap-Fuel, Gas1:2

1

Tank-Fuel1:3

1

Screw-CARR2

2

Washer-Flat3

2

Spring-Tank, Fuel4

2

Nut-Lock, NI5

2

Screw-CARR6

1

Nut-Flange, NI7

1

Clamp8

4

Clamp-Hose9

1

Hose-Fuel10

1

Valve-Fuel11

1

Hose-Fuel12

1

Fuel Tank Assembly

7

3359-831 Rev B

11

Ref Part No. Qty. Description

op

5-7280
109-3386
110-6766
109-8951
110-6697
109-8855-03
3274-10
1-603610
3212-11
109-9162
1-513034
109-3397
1-603384
3231-11
3256-4
3231-5
104-8301
1-603402
82-4201
109-3388
3253-4
32144-109
288-10

Engine-Kohler, Sv820-00121

1

Key2

1

Sheave-Split Steel3

1

Clutch-Electric, PTO4

1

Muffler ASM5

1

Gasket-Exhaust5:2

2

Anchor-Clutch6

1

Screw-HSH7

4

Washer-Spring8

2

Screw-HH9

1

Idler Arm ASM10

1

Sleeve-Bearing10:2

2

Pulley-Flat Idler11

2

Bushing-Pivot, Idler12

1

Screw-CARR13

1

Washer-Flat14

1

Screw-CARR15

2

Nut-Flange, NI16

3

Spring-Extension17

1

HYD Hose ASM18

1

Belt19

1

Washer-Lock20

4

Screw21

4

Cap-Pipe22

1

8

Engine Assembly

12

3359-831 Rev B

Ref Part No. Qty. Description

Transmission-LH1

109-3372
109-3371
109-6570-03
109-2250
109-3320
104-7201
3256-22
321-6
104-8300
3230-9
3256-3
322-12
109-3652
3230-30
109-3710
104-8301
3290-357
109-3711
109-3322
109-5395
3229-1
108-6402
1-806003
109-5577

1

Transmission-RH2

1

Bracket-Fender Support3

1

Vent-Tank, Hydro4

1

Cap-Reservoir, Hydraulic4:1

1

Nut-HF5

2

Washer-Flat6

2

Screw-HH7

2

Nut-Flange, NI8

8

Screw-CARR9

4

Washer-Flat10

2

Screw-HH11

2

Spacer-Hydro12

2

Screw-CARR13

2

Tube-Spacer14

1

Nut-Flange, NI15

1

Nut-HHF, Whiz16

1

Rod-Tension17

1

Clamp-Hose18

4

Arm-Hydro Bypass19

2

Screw-CARR20

2

Knob-Handle21

2

Pin-Hair22

2

Hose-Hydraulic23

1

Transmission Assembly

Ref Part No. Qty. Description

109-5578
109-2985

1

Hose-Hydraulic24
Trim25

1

9

3359-831 Rev B

A6

LH Hydro Transmission Assembly

Ref Part No. Qty. Description

LH Main Housing Kit1

16

1

LH Side Cover Kit2

1

Screw-HHF3
O-Ring4

1

Plug5

1

Loctite 590-Gasket Materi al6

1

Plate-Bypass7

1

Element-Oil Filter, HYD8

1

Check Plug9

1

Seal-Plug10

2

Screw-Hfhc11

3

Seal-Lip12

1

Ring-Retaining, EXT13

1

Rod-Bypass14

1

Ring-Retaining, Int15

1

Arm-Bypass16

1

Ring-Retaining, EXT17

1

Swashplate-Trunnion18

1

Arm-Control, RH19

1

Washer20

1

Screw21

1

Shaft-Input22

1

Bearing-Shaft, Input23

1

Ring-Retaining24

1

10

114-8471
114-8472
104-5305
114-1678
112-9850

n

114-1679
114-1680
109-3321
114-1682
114-1683
114-1684
106-8676
106-8677
114-1685
106-8679
107-2490
106-8681
104-5304
114-1686
114-8491
107-2488
114-1687
103-7441
104-5307

No. 109-3372

Ref Part No. Qty. Description

104-5308
104-5310
104-5309
114-1688
114-1689
94-6922
110-8561
104-5339
104-5340
114-1690
114-1691
104-5360
94-1933
114-1692
114-1693
104-5329
104-2169
114-1694
114-1695
114-1696
104-2143
104-2144
105-1895
114-1697

1

Spacer25
Seal-Lip26

1

Ring-Retaining27

1

Bearing-Thrust28

1

Motor Cylinder Block Kit29

1

Bearing-Thrust30

1

Pump Block ASM31

1

Washer-Flat32

1

Ring-Retaining33

1

Gear-14T34

1

Shaft-Motor35

1

Washer-Shaft, M o t o r36

1

Washer37

1

Gear-45T38

1

Gear-11T39

1

Pin-Jackshaft40

1

Ring-Retaining41

1

Gear-54T42

1

Spacer43

1

Bearing-Ball44

1

Bearing-Ball45

1

Seal46

1

Nut47

1

Pawl-Brake48

1

A6

3359-831 Rev B

LH Hydro Transmission Assembly

No. 109-3372 (continued)

Ref Part No. Qty. Description

Shaft-Inboard Brake49

114-1698
114-1699
114-8450
114-8473
109-3278

n

1-603921
114-8453
114-8454
105-1875
107-9122
114-8455
104-2122
109-3540
114-8457
104-2120
114-8458
114-8474
106-8682
114-8475
114-8478
109-5592
109-3537
114-8476
114-8464

1

Handle-Brake50

1

Clip-Retaining51

1

Guard-Filter, LH52

1

Adapter-Straight53

1

O-Ring53:1

1

Fan-7.054

1

Pulley-5.0 Inch55

1

Nut-Lock56

1

Washer-Slotted57

1

Tube-Connecting58

1

Gerotor ASM59

1

O-Ring-Seal60

1

Cover-Charge Pump61

1

Screw62

1

Spacer63

1

Arm-Neutral, Left64

1

Screw-Sh65

1

Rtn Ccw ASM66

1

Washer67

1

Spring-Extension68

1

Complete Seal Kit69

1

LH Center Section Kit70

1

Charge Relief Kit71

1

Ref Part No. Qty. Description

1

114-8465
109-5939

o

o
o

o

109-5938

114-8467
114-8468
114-8477
114-8470

Charge Kit72
Hub Kit73

1

Hub W/Studs73:2

1

Fan And Pulley Kit74

1

Pulley74:2 1
Locknut,Hex74:3

1

Washer74:4 1
Hub-Puller, 4 Bolt75

1

Input Shaft Kit76

1

Rtn Ccw Kit77

1

Axle Shaft Kit78

1

11