
YGT18H46A (1997) Page 1 of 29
CHASSIS AND ENCLOSURES

YGT18H46A (1997) Page 2 of 29
CHASSIS AND ENCLOSURES
Ref # Part Number Qty Description
1 150253 "RAIL,FRAME RH"
2 140506 DRAWBAR GT
3 150302X428 "PANEL ASM-SIDE,LH"
4 73800700 NUT.7/16
5 140398 DASHBOARD BLACK
6 157882 DASH LOWER
7 17720408 SCREW
8 145166 SUPPORT.DASH.BTRY
9 108067X PAL NUT LT
14 150301X428 "HOOD, YARD PRO"
15 146459 LENS.BAR.CLEAR
16 121794X COVER ACCESS
17 17490612 SCREW
18 150198 GRILLE
19 19131312 WASHER
20 74760616 BOLT
21 73680600 SUB= 73690600
22 150303X428 "PANEL ASM SIDE,RH"
23 17490616 SCREW GTV
24 145243X428 FOOTREST.RH.LT/GT
27 73220400 SUB= 50675
28 145244X428 FOOTREST PNT LH
29 145205 DASH.SUPT.YP/HUSQ
30 145052 SADDLE.HYDRO.95
31 145183 BRAKET.SUPT.STEER
32 141315 BRACKET ASM FRAME
33 141314 BRACKET ASM FRAME
34 142131 BRACKET.ENG.SUPT.
35 19111116 WASHER
36 74780512 BOLT
37 140002X428 "FENDER WS,FTK"
38 10040400 LOCKWASHER
39 136961 BRACKET.AXLE.FRT.
40 156111 "BRKT SUPPORT,AXLE"
42 72140608 SUB= 72110608
43 136939 BRACKET.SUS.FT.LH
44 136940 BRACKET.SUS.FT.RH
45 145913 BRACKET ASM., SUSP CHASSIS RH
46 19091216 WASHER PM
47 17490608 SCREW LT
50 152728 "BRKT CHASSIS,FRNT"
51 17580408 SCREW CRT
52 73680500 SUB= 73690500
54 73510500 NUT
56 145914 BRACKET ASM., SUSP CHASSIS LH
58 137113 BRKT.ASM.FENDER
60 17490620 SCREW
61 147717 BEZEL.ASM.
63 19131614 WASHER
68 17490508 SCREW LT
70 137159 GUIDE.BELT.MID.SP
71 144916X428 STRAP-GRILLE
72 74180512 SCREW
74 74191008 SCREW
76 2029J WELDNUT
79 74981020 SCREW
80 7206J SPACER LT
82 73731000 NUT

YGT18H46A (1997) Page 3 of 29
CHASSIS AND ENCLOSURES
Ref # Part Number Qty Description
84 142992 STOP.OVER.CENTER
86 74760716 BOLT
90 11050600 LOCKWASHER
91 156586 "RAIL FRAME,LH"
92 156286X010 "PLATE DASH,SLKSCR"
94 100207K CLIP GTV
95 105531X NUT-PUSH YT
98 140503 BRACKET SKID CHAS
99 140871 ROD BYPASS
100 124236X CAP
101 17490628 SCREW LT
102 4497H RETAINER M
103 142273 LOCK BYPASS BRKT
106 138776 SUB= 157722
107 109808X HOOD LATCH T
108 110356X SNAP CAP LT
109 110357X WASHER LT
112 60867 ACORN NUT RB
120 19131616 WASHER HYT
122 17030814 SUB= 91817030814
131 150195 BKT.SPT.HOOD/PANL
132 74291006 SCREW.10-24X3/8.
8022J PLUG-DASH T

YGT18H46A (1997) Page 4 of 29
DECALS

YGT18H46A (1997) Page 5 of 29
DECALS
Ref # Part Number Qty Description
1 156835 "DECAL-INST,OPER"
3 158856 "DECAL HOOD,RH,18H"
4 158857 "DECAL-HOOD,LH,18H"
5 140837 DECAL BRAK PARK
7 145005 DECAL.BATRY.3-3908
8 156432 DECAL FENDER LH
9 156412 DECAL FENDER
10 157002 "DECAL DANGER,FEND"
11 4900J DECAL T
12 142342 DECAL D-BAR CNTRL
13 158858 "DECAL-CHASSIS,46"""
14 139346 "DECAL.V.BELT.44"""
16 156415 DECAL GRILLE
17 156431 DECAL FENDER RH
18 156428 DECAL INS STRG WH
23 106202X REFLECTOR-TAIL YT
133671 FOOTREST PAD
138311 DECAL HANDLE LIFT
156804 MANL.O.YGY18H46A

YGT18H46A (1997) Page 6 of 29
ELECTRICAL

YGT18H46A (1997) Page 7 of 29
ELECTRICAL
Ref # Part Number Qty Description
1 144927 SUB= 125603X
2 74760412 BOLT LT
3 10040400 LOCKWASHER
4 19091016 WASHER
6 73220400 SUB= 50675
7 7697J "DRAIN TU T, BATT"
8 7603J "TRAY T, BATTERY"
9 109596X HOSE CLAMP T
10 145211 SUB= 150177
11 150109 HOLDDOWN BATTERY
12 145769 SUB= 150177
16 153664 SWITCH INTERLOCK
19 10090400 SUB= 10040400
20 73350400 NUT
21 136850 "HARNESS,LIGHT SOC"
22 4152J HEADLAMP BULB
24 4014J CABLE.BATY.22.RED
25 146686 CABLE.BATRY.4GA.
26 108824X FUSE HYT
28 157899 "CABLE BATTERY,GRD"
29 121305X SWITCH SEAT
30 140302 BEARING PVT LH
31 124211X NUT IGNITION
32 141226 COVER KEY SWITCH
33 122147X KEY
40 156162 HARNESS IGNITION
41 17720408 SCREW
42 131563 SUB= 154336
43 145673 SUB= 146154
45 122822X AMMETER
50 154959 PTO SWITCH.BLK
51 140405 RING RETAIN PTO
52 141940 PROTECTION LOOP

YGT18H46A (1997) Page 8 of 29
ENGINE

YGT18H46A (1997) Page 9 of 29
ENGINE
Ref # Part Number Qty Description
1 CV18S ENGINE, KOHLER
2 144636 SUB= 161062
5 13200300 ELBOW
7 151396 GUARD.MUFFLER.ASM
8 121361X SUB= 139123
9 150828 KEEPER ASM BELT
10 105432X BUSHING.
11 140923 SUB= 150283
12 143996 PULLEY.ENG.CLUTCH
15 151346 TANK FUEL REAR
16 109227X PAD IDLER TI
17 106082X PAD-SPACER LT
18 140527 CAP ASM FUEL
19 13290300 PLUG T
20 132747 SUB= 532132748
21 17720410 SCREW LT
22 132781 CHOKE CONTROL
23 19131316 WASHER
24 11050600 LOCKWASHER
25 73920600 "NUT,KEPS 3/8-24IM"
26 3645J BUSHING OUTLET T
27 139277 STEM.TANK.FUEL
28 7834R SUB= 8542R
29 132920 SPARK ARREST KIT
30 105037X FOAM-STRIP LT
33 73800600 NUT
37 123487X HOSE CLAMP
38 74780624 "BOLT,HEX"
39 17490636 SCREW.3/8-16X2.25
40 17490664 SCREW.TT.3/8-16X4
41 126197X WASHER
42 10040700 LOCKWASHER
43 150280 BOLT.7/16-20X4.25
45 128861 NUT
46 19131616 WASHER HYT
47 142040 SPACER.ENGINE
48 19132007 WASHER T
51 140787 SUB= 918140787
54 19131414 WASHER
55 13090336 SUB= 13280336
56 13090308 NIPPLE.PIPE
63 145549 HEAT.SHIELD.VGT.

YGT18H46A (1997) Page 10 of 29
GROUND DRIVE

YGT18H46A (1997) Page 11 of 29
GROUND DRIVE
Ref # Part Number Qty Description
2 7070E KEY 1/4 X 2.5
3 7563R WASHER T
5 73680600 SUB= 73690600
6 76020412 COTTER PIN
7 140507 HUB WHEEL ASM
9 140080 BOLT.HUB.WHL.REAR
15 19131316 WASHER
17 140921 SPRING ROD BRAKE
20 73940800 SUB= 73360800
22 156103 ARM ASM SHIFT
23 140845 KNOB DLX BLK/BLK
28 73350600 NUT
29 140494 ROD BRAKE
30 19131616 WASHER HYT
33 12000053 E RING HYT
34 71673 PLUNGER CAP T
35 137648 ROD BRAKE PART GT
36 149412 SPRING.GRND.DRIVE
37 121749X WASHER
38 150035 BUSHING.NYLINER
39 74321016 SCREW
40 5304J ACT-SWITCH T
41 73631000 SUB= 69180
42 123533X "COVER,PEDAL"
46 145170 RETAINER.SPRING
47 138228 ROD.CLUTCH
48 72110612 BOLT.3/8-16X1.50
50 131494 FLAT IDLER PULLEY
51 73680600 SUB= 73690600
52 139123 PULLEY.IDLER.V.GR
53 207J WASHER T
54 156563 ARM ASM CLUTCH
55 105706X "LY, BEARING"
56 140218 BELT-V 84.5
58 74760724 BOLT
61 140488 PULLEY TRANSAXLE
64 154752 SHAFT-BRAKE/CLUTC
65 67609 AXLE BOLT
66 140296 WASHER.HARD.BLADE
67 19131312 WASHER
68 5142H ROLL PIN STD
69 123800X WASHER
70 151146 SUB= 164892
71 151179 "PLATE CONSOLE,SFT"
72 73680500 SUB= 73690500
73 74780548 BOLT FIN HEX 5/16
74 142432 SCREW HEXWSH H-L
76 140481 BRACKET TRAN VGTH
77 74760716 BOLT
78 19111212 WASHER
79 72110505 BOLT
80 140484 BRACKET TORQUE RH
81 17490612 SCREW
82 150586 BRACKET.MTG.FAN
83 140479 STRAP TORQUE MID
84 140490 SPACER
85 17541020 SCREW YTV
86 140462 "FAN 7"" HYDRO"

YGT18H46A (1997) Page 12 of 29
GROUND DRIVE
Ref # Part Number Qty Description
87 140491 ADAPTER FAN
88 140492 SUB= 161592
89 73680700 NUT GTV
90 140489 KEEPER BELT
91 17490644 SCREW.HXWSH.3/8
92 74760520 BOLT
93 140502 LINK ASM SHIFT
94 133835 XMAS TREE FASTNER
96 141103 WASHER NICKEL PLT
98 141004 BRACKET SHIFT
99 17490624 SCREW LT
100 126881X WASHER COMPRESSIN
101 156106 WASHER-BELLVILLE
104 140480 BRACKET IDLER
105 17580408 SCREW CRT
106 142918 O-RING.ASM.70110
107 154739 "LINE FUEL,HYD 15"""
108 142917 CAP.VENT.70109
109 140929 SPRING BRAKE
111 156240 "SPACER-LEVER,SHIF"
112 156104 "WASHER-NYLON,HIGH"
113 73220700 NUT
115 123405X "KEEPER,DRIVE BELT"
116 73900500 "NUT HEX,LOCK,FLAN"
117 73900600 SUB= 83923
150073 SUB= 163198

YGT18H46A (1997) Page 13 of 29
LIFT ASSEMBLY

YGT18H46A (1997) Page 14 of 29
LIFT ASSEMBLY
Ref # Part Number Qty Description
1 121006X LEVER ROD LT
2 154389 SHAFT AMS LIFT
3 121002X SUB= 123096X
4 12000022 E-RING
5 19292016 WASHER
6 74780624 "BOLT,HEX"
7 125631X GRIP HANDLE
8 124526X SUB= 125925X
9 122364X SUB= 125925X
10 2876H SPRING T
11 146704 LINK.LIFT.MWR.VGT
12 3146R RETAINER.SPRING
13 139868 ARM SUSP REAR
14 140302 BEARING PVT LH
15 73680600 SUB= 73690600
16 674A247 SUB= 918674A247
17 73350600 NUT
18 143363 BRACKET SPRING AS
19 19131316 WASHER
20 5328J BOLT-ADJ SPRING T
21 74760616 BOLT
22 127218 LINK.FRONT
23 4939M SUB= 85902
24 73350800 NUT
25 130171 TRUNION
26 73800800 NUT.LK.W/WSH.1/2.
29 150233 TRUNNION
30 110807X NUT T
31 19131016 WASHER
32 137150 SPRING.COMP.INF.H
33 76020308 SUB= 3145
34 137167 ROD.ADJ.LIFT
35 138057 KNOB INF 3/8-16
38 155097 POINTER-INDICAT
39 123935X "PLUG,HOLE"
40 17490512 SCREW
41 73540600 NUT.CROWNLOCK.3/8
42 19112410 WASHER
43 123934X HEIGHT INDICATOR
70 145212 NUT.HXFLG.LOCK.
72 110452X NUT PUSH M

YGT18H46A (1997) Page 15 of 29
MOWER DECK

YGT18H46A (1997) Page 16 of 29
MOWER DECK
Ref # Part Number Qty Description
1 153125 HOUSING MOWER
3 138457 BRKT.ASM.SW.44/50
5 4939M SUB= 85902
6 130832 SUB= 130833
8 850857 BLADE BOLT
9 10030600 SUB= 10040600
10 140296 WASHER.HARD.BLADE
11 157353 SUB= 159705
12 129895 BEARING.BALL
13 137553 SHAFT.ASM.W/BRNG
14 137152 HOUSING.MAND.44.V
15 110485X BEARING
16 140329 STRIPPER RND MWR
18 72140505 BOLT
19 132827 BOLT SHD 5/16-18
20 145055 BAFFFLE.VORTEX.46
21 73680500 SUB= 73690500
22 134753 STIFFENER BRKT
23 131267 DEFLECTOR BRKT
24 105304X CAP-SLEEVE LT
25 123713X SPRING TORSION
26 110452X NUT PUSH M
27 145325 SUB= 157788
28 19111016 WASHER
29 131491 HINGE ROD
30 138776 SUB= 157722
31 129963 WASHER
32 153531 PULLEY.MAND.36/46
33 137266 SUB= 139729
34 144945 ANCHOR.SPRING.46
35 17490628 SCREW LT
36 19131316 WASHER
37 131494 FLAT IDLER PULLEY
38 156086 "KEEPER BELT,IDLER"
39 144917 PULLEY.DRV.DCK.46
40 137273 "SPRING.SEC.44""VEN"
41 17490620 SCREW
42 122052X SPACER RETAINER
43 144949 ARM.IDLER.DECK.46
44 133943 HARDENED WASHER
45 145059 COVER.MANDREL.46
46 137729 SCREW.1/4-20X5/8
47 144959 BELT-V.SEC.46.KEL
48 148763 BELT.MWR.PRM.85.4
49 73680600 SUB= 73690600
50 72110612 BOLT.3/8-16X1.50
51 153390 WASHER.FELT.
52 155191 PULLEY.IDLER.
53 19131312 WASHER
54 74780616 BOLT
55 72140608 SUB= 72110608
72 19131616 WASHER HYT
90 74760616 BOLT
91 132274 SUB= 532132274
92 73800600 NUT
93 19171416 WASHER
94 132264 SUB= 532132264
95 132273 SUB= 532132273

YGT18H46A (1997) Page 17 of 29
MOWER DECK
Ref # Part Number Qty Description
101 145579 COVER.MULCHING.
102 71161010 SCREW
103 10071000 LOCKWASHER
104 19061216 WASHER #10
105 130758 SUB= 160793
106 2029J WELDNUT
116 137644 BOLT.SHOULDER
117 133957 WHEEL GAGE DONUT
118 73930600 LOCKNUT
119 19121414 WASHER
126 144948 ARM.IDLER.PRIM.46
127 146763 PULLEY.IDLER.4.25
143651 MANDREL SERV ASM
157251 MOWER SERV DECK46

YGT18H46A (1997) Page 18 of 29
PUMP ASSEMBLY

YGT18H46A (1997) Page 19 of 29
PUMP ASSEMBLY
Ref # Part Number Qty Description
1 144569 SHAFT.PUMP.50158
2 122716X RETAINIANG RING-(2003016)
3 122745X BALL BEARING
4 122715X SPACER
5 122700X SEAL LIP
6 122699X RING.RET.2003052
8 122767X CRADLE BEARING (2003023)
12 122717X SEAL.9008000-0126
13 122748X TRUNION ARM (2003005)
14 122749X GUIDE.2000015.HYD
15 144571 KIT.HSG.2513035.
17 122770X SUB= 142936
19 144572 KIT.CENT.2513006
21 122722X LIP SEAL-9008000-0127
22 144573 SHAFT.MOT.2003034
23 142978 WASHER.2003017
25 127148X "SWASHPLATE,VARIAB"
32 142938 BLOCK.CLYN.70079.
37 122786X PIN
38 122718X GASKET.20030600
42 144578 KIT.VALVE.2510050
43 144578 KIT.VALVE.2510050
44 144579 KIT.RELI.2510011.
47 122752X SCREW9007314-0808
53 127153X "KIT,BYPASS VALVE"
60 142977 SPRING.2003014.
62 144581 0RING.90041011340
63 144582 KIT.CHARG.2513027
64 144583 GEROTOR.J1041008
67 144584 SCREW.CAP.50095.
144576 PUMP.BD-10L-118

YGT18H46A (1997) Page 20 of 29
SCHEMATIC

YGT18H46A (1997) Page 21 of 29
SCHEMATIC
Ref # Part Number Qty Description
REFER TO IMAGE

YGT18H46A (1997) Page 22 of 29
SEAT ASSEMBLY

YGT18H46A (1997) Page 23 of 29
SEAT ASSEMBLY
Ref # Part Number Qty Description
1 127440 SUB= 140121
2 140551 BRACKET PVT SEAT
3 140675 STRAP ASM FENDER
4 127018X "BOLT,SHOULDER"
5 145006 CLIP.PUSH-IN.HING
6 73800600 NUT
7 124181X SPRING COMPRESSIO
8 150176 BOLT.5/16-18.UNC
10 155925 PAN-SEAT
12 121246X BRKT SWITCH
13 121248X BUSHING
14 72050411 SUB= 872050411
15 121249X SPACER SPLIT
16 123740X SPRING COMPRESSED
17 123976X SUB= 73900400
18 19171912 WASHER
19 1200068X SUB= 120068X
20 124238X CAP SPRING
21 153236 "BOLT,SHOULDER"
22 73680500 SUB= 73690500

YGT18H46A (1997) Page 24 of 29
STEERING ASSEMBLY

YGT18H46A (1997) Page 25 of 29
STEERING ASSEMBLY
Ref # Part Number Qty Description
1 121472X SUB= 150546
2 137094 SUB= 532137094
3 6855M ZERK M
4 136960 SPINDLE.ASM.LH
5 136959 SUB= 918136959
6 6266H WASHER .T
7 121748X WASHER
8 12000029 RING
9 121232X CAP
10 74781044 BOLT
11 154779 BEARING AXLE
12 73901000 "NUT-LOC,FLANGE LT"
13 121749X WASHER
14 10040600 LOCKWASHER
15 7810H GRIPCO NUT
16 145103 SHAFT.STEER.VGT
17 137347 ROD.ASM.TIE.BALL
18 137155 DRAGLINK.BALL.JOI
19 156011 SUPPORT ASM-STEER
21 100711L ADAPTER LT
22 155105 "BUSHING,STEERING"
23 152927 "SCREW-TT,10-32 FL"
24 19133808 WASHER T
25 74780616 BOLT
26 126805X "INSERT,STR WHEEL"
27 3366R COL. SRTG. BEAR.
28 17490612 SCREW
29 104239X "FLANGE GT, BEAR."
30 12000034 KLIP RING
31 138136 BUSHING.NYLINER.
32 19111610 WASHER
33 10040500 LOCKWASHER
34 74760512 BOLT
35 138059 GEAR.ASM.SECTOR.
36 137156 SUB= 137347
37 73360600 NUT
38 109850X JOINT.RH
39 73700600 NUT
40 109851X JOINT.LH
41 155246 "BRKT-SW, INTER"
42 17490508 SCREW LT
43 154780 SPACER AXLE

YGT18H46A (1997) Page 26 of 29
TRANSAXLE

YGT18H46A (1997) Page 27 of 29
TRANSAXLE
Ref # Part Number Qty Description
1 142874 HOUSING LH 70086
2 142875 HOUSING RH 70088
7 153765 SEAL.OIL.44782.HY
16 142876 SHAFT BRAKE 62877
20 142877 AXLE MTG 70087
21 142878 WASHER 44805
22 142879 WASHER 44806
33 142929 YOKE.BRAKE.62589
35 142880 ARM BRAKE 50214
36 142882 PUCK PLATE 44134
37 142883 PUCK BRAKE 44132
38 142884 WASHER HYD 44130
39 142885 SUB= 144607
40 142886 SUB= 144608
41 142887 PIN BRAKE 44127
42 142888 KEY HI PRO 44143
43 142889 SPACER 50259
45 142890 DISC BRAKE 44090
46 142891 BOLT 1/4-20 44276
47 142892 BOLT 1/4-20 44433
49 153766 DIFFRENTIAL.70251
63 142894 PIN DOWL 44757
64 150818 GEAR.14-38.44776
65 142897 PINION DRIV 70051
67 142898 SHAFT-44779
68 142899 O RING 44781
69 142900 WASHER 44795
70 142901 WASHER 44794
71 142902 BOLT 5/16 44827
72 153767 LOCKNUT.43064
73 142904 BOLT 5/16 44841
74 142905 SCREW 5/16 45089
76 142907 BOLT SHOULD 44785
77 142908 ARM FREEWHL 44786
78 142909 SEAL.OIL.44761
79 153768 SUB= 126976X
81 142910 BOLT 5/16 43084
82 142911 BOLT 5/16 44820
89 142912 FILTER SPIN 50037
91 153769 PUMP.BDU-10L-122
95 142914 PLUG.9005110-5600
96 153770 FITTING.SAE.50257
103 142916 WASHER.50169
104 142917 CAP.VENT.70109
106 142918 O-RING.ASM.70110
108 142919 ARM.CONTROL.45007
109 142920 SCREW.SET.50018.
110 142921 FILTER.HEAD.50207
111 150820 HOSE.50632
112 150823 FITTING.SAE.50604
113 150821 FITTING.SAE.50592
117 150822 FITTING.SAE.50589
123 150824 O-RING.50405
124 150825 CLAMP.50590
129 153771 SPRING.LONG.50667

YGT18H46A (1997) Page 28 of 29
WHEELS AND TIRES

YGT18H46A (1997) Page 29 of 29
WHEELS AND TIRES
Ref # Part Number Qty Description
1 59192 VALVE CAP
2 65139 VALVE STEM LT
3 106230X SUB= 122075X
4 8134H TUBE.16X6.5/7.5-8
5 106228X427 "RIM ASM 8"" FRT"
6 278H FITTING LT
6A 6856M ZERK FITTING M
7 9040H "FLANGE, BEARING"
8 106277X427 "RIM ASM 12"" REAR"
9 105588X SUB= 122077X
10 7154J TUBE.23X8/10-12
11 104757X HUB CAP
144334 SEALANT.TIRE 10 OZ. TUBE