Toro 74903 Parts Catalogue

PartsCatalog

FormNo.3370-938RevB

ZMaster

with52inTURBOFORCE

®

RidingMower

®

SideDischarge

Mower

ModelNo.74903—SerialNo.312000001andUp

Registeratwww.T oro.com.
OriginalInstructions(EN)

*3370-938*B

OrderingReplacementParts

Toorderreplacementparts,pleasesupplythepartnumber,
thequantity ,andthedescriptionofeachpartdesired.

UnderstandingReferenceNumbers

Eachidentiedpartinanillustrationhasareference
number.Thereferencenumberforapartalsoappearsin
thepartslist,alongwithotherinformationaboutthepart.

Thiscatalogusestwospecialreferencenumberformats,
onetoindicatepartsinaserviceassemblyandanotherto
indicatethequantityofagivenpartinanillustration.

ServiceAssemblyReferenceNumbers

Partsinserviceassemblieshavereferencenumbersinthe
forma:b.Thearepresentsthereferencenumberofthe
entireserviceassemblyandthebrepresentsasequential
numberuniquetoeachpartwithintheserviceassembly.

ListofAbbreviations

AR:asrequired

ASM:assembly

BBC:bladebrakecontrol

BHTF:buttonheadthreadforming

CARR:carriage

CCW:counterclockwise

CW:clockwise

DEG:degrees

DPA:DualPointAdjustment

ECM:electroniccontrolmodule

EXT:external

FH:athead

GA:gauge

HD:heavy-duty

HF:hexange

HH:hexhead

HHF:hexheadange

HHFTF:hexheadangethread

forming

HJ:hexjam

HLH:hexlaghead

HOC:height-of-cut

HSBH:hexsocketbuttonhead

HSFH:hexsocketathead

HSH:hexsockethead

HWH:hexwasherhead

HWHTF:hexwasherheadthread

forming

HYD:hydraulic

LH:lefthand

LP:LiqueedPetroleumGas

LPG:LiqueedPetroleumGas

NI:nyloninsert

NPTF:nationalpipethreadne

PFH:phillipsathead

PPH:phillipspanhead

PPHTF:phillipspanheadthread

forming

PRH:phillipsroundhead

PTH:phillipstrusshead

Forexample,awheelassemblymightbeidentiedby
referencenumber6,thetireby6:1,thevalveby6:2,and
thewheelby6:3.Whenyouordertheassemblyidentied
byreferencenumber6,youreceiveallpartsidentiedby
referencenumbers6:1,6:2,and6:3.However,youmay
alsoorderanypartindividually.Referencenumbersofthis
typeappearinillustrationandinpartslists.

ReferenceNumbersIndicatingQuantity

Inanillustration,ifareferencenumberindicatesmorethan
onepart,thereferencenumberhastheformnXy .Then
representsthequantityofthepart,theXisthemultiplication
symbol,andtheyrepresentsthereferencenumber.

Forexample,inanillustration,thereferencenumber2X37
meansthattwoofthepartsidentiedbyreferencenumber
37areindicated.

PTO:power-take-off

RH:righthand

ROPS:roll-overprotectionsystem

RRB:rearrollerbrush

SFH:slottedllisterhead

SHH:slottedhexhead

SHWH:slottedhexwasherhead

SPH:slottedpanhead

SQH:squarehead

SRH:slottedroundhead

STD:standard

TAP:selftapping

TTH:torxtrusshead

2

Contents

FrameandCasterWheelAssembly...........................................................................4

Roll-OverProtectionSystemAssemblyNo.116-0231............................................................5

CasterWheelandForkAssembly.............................................................................6

HydraulicPump,IdlerandBeltAssembly.......................................................................7

PumpIdlerAssemblyNo.116-1255...........................................................................8

LHHydroAssemblyNo.116-6411............................................................................9

RHHydroAssemblyNo.116-6412...........................................................................10

RearWheelandParkBrakeAssembly........................................................................1 1

ParkingBrakeHandleAssemblyNo.116-6861................................................................12

FuelTankMountingAssembly...............................................................................13

FuelTankAssemblyNo.116-3979...........................................................................14

SeatMountingAssembly...................................................................................15

SeatAssemblyNo.116-0035................................................................................16

MotionControlAssembly...................................................................................17

Fender,ConsoleandControlAssembly.......................................................................18

LHConsoleAssemblyNo.115-7403.........................................................................19

RHConsoleAssemblyNo.115-7402.........................................................................20

ElectricalAssembly........................................................................................21

DeckliftAssembly..........................................................................................22

Height-of-CutAssemblyNo.109-7438........................................................................24

Engine,ClutchandMuferAssembly.........................................................................25

DeckAssembly............................................................................................26

DeckDecalAssemblyNo.114-5810..........................................................................27

IdlerAssembly............................................................................................28

SpindleAssemblyNo.119-8560.............................................................................29

RubberDeectorAssemblyNo.108-2792.....................................................................30

AttachmentsandAccessories...............................................................................31

©2012—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

Contactusatwww.Toro.com.

3

PrintedintheUSA.

AllRightsReserved

FrameandCasterWheelAssembly

Ref.

PartNumber

1116-59001
1:2116-33031
1:3103-20762
1:4116-02052Decal-BeltDrive
1:5116-48581

Qty.Description

Ref.

MainframeASM

PartNumber

14116-58991
Decal-Slope
Decal-Caution

14:2109-72321
14:3116-59441Decal-ParkBrake

Decal-SparkArrester

15116-05801

1:6116-16541Decal-FuelFill

2115-74101

RearGuardASM

2:267-73201Decal

3116-0024-011Floorpan
41-5136582Bumper
5

116-02311

ROPSASM

61-8110102Plug
7
9116-01801

9:2103-20761

2

CasterWheelASM
LHBumperASM
Decal-Caution

●

10116-0057-031Bumper-RH
11104-830111Nut-Flange,NI
123231-22
133231-214

●

Notservicedseparately

3370-938B4A2

7

Screw-CARR
Screw-CARR

15:2109-72321

16116-0043-031

1768-36401Decal

1832144-104

19116-01701

19:2116-01571

20116-01711

20:2116-01571

21109-90571

22109-90581

331-8030352Rivet-Pop

34116-23621

69107-31542Nut-Push

Qty.Description

RHMotionControlCover
ASM
Decal-MotionControl

LHMotionControlCover
ASM
Decal-MotionControl
Guard-Mufer

Screw-HWH
LHHydroGuardASM
Decal-HydroOil
RHHydroGuardASM
Decal-HydroOil
Guard-Hydro,RearLH
Guard-Hydro,RearRH

Deector-AirFlow

Roll-OverProtectionSystemAssemblyNo.116-0231

Ref.

PartNumber

11
21
3109-66532
41

4:2107-21021

5

109-53372
6116-01042
7

99-51076Nut-Lock
83233-102
9325-174

10109-95054

Qty.Description

LHROPSLegASM
RHROPSLegASM
Spacer
UpperROPSASM
Decal-Warning,FoldingROPS
Bumper-ROPS
SpringPinASM

Screw-CARR
Screw-HH
Washer-Spring

●

●

●

11109-92331Bumper-Push-In,Rubber
12116-00901
14116-09602

●

Notservicedseparately

A2A153370-938B

Decal-Caution
Spacer

CasterWheelandForkAssembly

Ref.

PartNumber

11-5435092Bearing-Roller,T apered
21-5435111
31-6335083Washer-Bellville
4103-1474-011
5

109-91271
5:1103-27682
5:21

5:2:11-6335852
5:2:2103-00632

●

Notservicedseparately

■

UsePro-Lock,NutType(P/N1-840022,.5mltube)onthreads.

3370-938B6A2A2

Qty.Description

Seal-Grease

Caster-Fork
WheelAndTireASM
Guard-Seal
WheelAndTireASM
Bearing-Cone,T aper
Seal-Caster

Ref.

PartNumber

5:2:3103-30512
5:2:4103-51561
5:2:5109-91241

5:2:5:11-6335841

5:3325-391
5:43296-231Nut-Lock,NI

●

6103-48821
7

3296-511Nut-Lock,NI

Qty.Description

Spacer-Nut
Axle-Caster
WheelAndTireASM
Bearing-Cup
Screw-HH

Cap-Grease

■

HydraulicPump,IdlerandBeltAssembly

Ref.

PartNumber

1116-12551

Qty.Description

PumpIdlerASM
2109-66581Nut-Flange,NI
3116-64111

LHHydroASM(12CcW/Check)
4109-33881Belt
5

116-01331
6109-93751
7

116-15021
83233-346

Extension-Spring
Cradle-Hydro
Bolt-Shoulder,Carriage
Screw-CARR

999-51076Nut-Lock

10325-84
11116-64121
99114-47131
99114-47141
99114-47151

Screw-HH
RHHydroASM(12CcW/Check)
Hypr-Oil500(Quart)
Hypr-Oil500(Gallon)
Hypr-Oil500-5(5Gallon)

●

●

●

99117-03901Filter-Hydro

●

Notillustrated

C273370-938B

PumpIdlerAssemblyNo.116-1255

Ref.

PartNumber

11Arm-Pump,Idler
243-09401
3103-35042
4103-35051
5

103-35061

Qty.Description

●

Spacer
Bearing-Spherical
Seal-DoubleLip

Seal-SingleLip
6109-66581Nut-Flange,NI
7

106-71592
8323-81
932120-102

10302-191

O-Ring
Screw-HH
Ring-Snap

Fitting-Grease
11109-80761Pulley-Idler
12116-34671

●

Notservicedseparately

3370-938B8C2A3

Pin-Spring,Anchor

LHHydroAssemblyNo.116-6411

Ref.

PartNumber

1116-68591
2116-02331FanKit
3116-02341PulleyKit
4116-02351Handle-BypassValve,

5

116-02361
6116-02371
7

116-13671
8116-13681
9116-13691

●

Notillustrated

C2A493370-938B

Qty.Description

Bracket-Anchor,Cable

Hydro
Dipstick-HydroW/Gasket
Gasket-Dipstick,Hydro
SwashBlockKit
PumpSealKit
MotorSealKit

Ref.

PartNumber

10116-13701
11116-13711
12116-54691
133257-421
15116-32871Housing-Hydro,LH
16116-29841

18116-16301
19116-16311
99116-13731FlowT estKit

Qty.Description

TubeSealKit
OutputShaftSealKit
NoseCup-Uht
Key-Woodruff

Motor-HYD,240CcLH,
Unsealed
CheckValveASM
Plug-Check,W/O-Ring

●

RHHydroAssemblyNo.116-6412

Ref.

PartNumber

1116-68591
2116-02331FanKit
3116-02341PulleyKit
4116-02351Handle-BypassValve,

5

116-02361
6116-02371
7

116-13671
8116-13681

●

Notillustrated

3370-938B10C2A5

Qty.Description

Bracket-Anchor,Cable

Hydro
Dipstick-HydroW/Gasket
Gasket-Dipstick,Hydro
SwashBlockKit
PumpSealKit

Ref.

PartNumber

9116-13691
10116-13701
11116-13711
12116-54691
133257-421
18116-16301
19116-16311
99116-13731FlowT estKit

Qty.Description

MotorSealKit
TubeSealKit
OutputShaftSealKit
NoseCup-Uht
Key-Woodruff
CheckValveASM
Plug-Check,W/O-Ring

●