Roper YTH160BT Mower Diagrams

YTH160BT (1999 & Before) Page 1 of 32CHASSIS AND ENCLOSURES


Ref # Part Number Qty Description1 110057X SUB= 1649452 109866X SEAT PAN T3 110378X BRACKET T4 106974X SUB= 1337964 108658X SUB= 120822X5 109593X367 NLA6 106202X REFLECTOR-TAIL YT7 104810X NLA8 105512X SPRING LT9 105511X SUB= 140675

10 105514X "CLAMP, SPRING LT"11 105531X NUT-PUSH YT12 105509X SUB= 13711313 6431J PAD-SPACER T14 109462X SUB= 15899015 109202X TANK.FUEL.LT.16 3645J BUSHING OUTLET T17 8710J FUEL TANK STEM GT18 6999R SUB= 123487X19 5277J SUB= 8543R21 106966X PANEL DASH HYT22 104875X NLA23 8292J SUB= 7192J24 105465X SUB= 145244X41725 4900J DECAL T25 101892X DECAL T26 109069X NLA27 109864X SUB= 108256X28 102481X SUB= 14500929 109219X DEFLECTOR HYT30 74180512 SCREW31 109512X CHASSIS T32 105464X SUB= 145243X41733 108398X PANEL-DASH34 104920X NLA35 9151R SNAP BUSHING T36 109252X367 SUB= 109252X37 108106X SADDLE HYT38 1554J SUB= 15510839 108635X NLA39 108813X SUB= 13895640 104805X LOWER DASH41 108396X SUB= 121312X42 2029J WELDNUT43 108558X PLATE-DASH44 19131316 WASHER45 108555X DECAL-DASH45 108814X DECAL-DASH46 108372X367 SUB= 150302X50547 108589X DECAL-SIDE PANEL48 104646X NLA49 104643X NLA50 106784X SUB= 15501351 104618X SUB= 15501352 108370X367 SUB= 150301X50553 105037X FOAM-STRIP LT54 104904X NLA55 106965X SUB= 140181


Ref # Part Number Qty Description56 104919X SUB= 109740X57 108371X367 SUB= 140679X50558 104644X NLA59 104613X SUB= 14771760 106395X LENS LT61 104632X SUPPORT-GRILL LT62 104633X NLA63 104634X SUB= 105419X38864 104628X GRILL GT65 105529X SUB= 13988866 73680500 SUB= 7369050067 74760612 SUB= 7478061268 10040600 LOCKWASHER69 19131212 WASHER T70 73680600 SUB= 7369060071 17490608 SCREW LT72 17490612 SCREW73 19132012 WASHER74 72140606 BOLT75 17431008 SUB= 9800016576 74760620 SUB= 7478062077 105505X SUB= 121794X78 73510600 NUT79 19091216 WASHER PM80 10040400 LOCKWASHER81 73220400 SUB= 5067582 74780512 BOLT83 73510500 NUT84 17211010 SCREW LT85 104755X """J"" FASTENER LT"86 17490512 SCREW87 74760616 BOLT88 7605J BOLT T89 73680400 SUB= 7369040090 74191008 SCREW91 10071000 LOCKWASHER92 17490412 SCREW HEX CRT93 19131312 WASHER94 7178J DECAL-CAUTION94 101893X NLA95 105036X FOAM STRIP HYT96 74760612 SUB= 7478061297 74760610 BOLT98 100225L SUB= 109808X99 73731000 NUT

100 7206J SPACER LT101 19070818 WASHER102 74981020 SCREW103 109641X GROMMET T104 19111116 WASHER106 10090400 SUB= 10040400107 109867X SPRING T109 2751R CLIP T110 108885X GUARD MUFFLER HYT112 109459X STRIP - FOAM

YTH160BT (1999 & Before) Page 4 of 32DIFFERENTIAL AND PUMP

YTH160BT (1999 & Before) Page 5 of 32DIFFERENTIAL AND PUMP

Ref # Part Number Qty Description1 106932X KNOB T(3/8 HOLE)2 108587X ROD COAST HYT3 73350600 NUT4 108212X TRUNION HYT5 CHECK WITH SUPPLIER6 108222X CONTROL COAST HYT7 108182X BRKT ASSEM HYT8 74760648 BOLT - HEX 3/8 - 16 X 39 CHECK WITH SUPPLIER

10 10040400 LOCKWASHER11 19092016 WASHER12 108833X FAN HYDRO HYT13 23200506 SET SCREW14 108099X PULLEY HYT15 74760656 BOLT16 108185X GUARD HYT17 5648R NLA18 2898J KEY T19 108180X PUMP HYDRO HYT20 108179X GASKET HYDRO HYT21 CHECK WITH SUPPLIER22 104777X SUB= 14031223 19131312 WASHER

YTH160BT (1999 & Before) Page 6 of 32DRIVE


Ref # Part Number Qty Description1 110012X BAFFLE - VERTICAL2 9151R SNAP BUSHING T3 402707 ENGINE, B&S4 104916X BAFFLE YT5 106407X SUB= 108767X7 10040400 LOCKWASHER9 13200300 ELBOW

10 13280336 PIPE NIPPLE LT11 91084 PLUG OIL DRAIN12 104870X THROTTLE CONTROL14 108103X SUB= 120418X15 2751R CLIP T16 108191X NLA17 108094X BRKT, TRANSAXLE18 9396E SQ KEY STD20 108093X U-BOLT HYT21 108097X SPACER HYT22 19332416 WASHER23 106108X SUB= 106108X41724 12000053 E RING HYT25 104757X HUB CAP26 19252016 SUB= 121749X27 65139 VALVE STEM LT28 59192 VALVE CAP29 74610764 SUB= 7113076830 108252X WASHER T31 10040700 LOCKWASHER32 108218X SUB= 14260033 108102X PULLEY ENGINE HYT34 108217X SPACER HYT35 74760644 BOLT36 4859J SUB= 123674X37 4470J SPACER T38 19131312 WASHER39 109070X BELT KEEPER LT40 108100X SUB= 120136X41 109169X SUB= 109172X42 76020412 COTTER PIN43 108212X TRUNION HYT44 108661X SPRING BRAKE HYT45 108112X SUB= 121091X46 8883R PEDAL COVER T47 106918X ARM BRAKE LT48 108096X SHAFT, FOOT PEDAL49 1572H SUB= 2882J50 71673 PLUNGER CAP T51 105844X SUB= 125637X52 105710X "LINK, CLUTCH T"53 73680600 SUB= 7369060054 106499X SUB= 123205X55 12000039 KLIP RING56 207J WASHER T57 105705X SUB= 125829X58 105709X "SPRING, RETURN LT"59 105724X SUB= 123102X60 74760624 SUB= 7493062461 106298X SUB= 13924562 105706X "LY, BEARING"


Ref # Part Number Qty Description63 19252016 SUB= 121749X64 2228M SUB= 2228M169 74760616 BOLT71 76020412 COTTER PIN73 108214X BRKT IDLER HYT74 101279K SPACER SPLIT LTV75 105307X IDLER.PULLEY.LT76 108216X KEEPER BELT HYT77 74760648 BOLT - HEX 3/8 - 16 X 378 105597X BELT RETAINER GT80 106268X SUB= 122074X

80A 7152J TUBE.18X9.5-881 108101X SUB= 120443X82 108236X BRACKET LT84 106319X SPRING-EXT LT86 106283X SUB= 106902X87 19382616 WASHER T91 4939M SUB= 8590292 CHECK WITH SUPPLIER93 74780412 SUB= 7478041494 100229L EXHAUST TUBE T

YTH160BT (1999 & Before) Page 9 of 32ELECTRICAL

YTH160BT (1999 & Before) Page 10 of 32ELECTRICAL

Ref # Part Number Qty Description1 73490400 SUB= 1465252 19091016 WASHER3 102476X SUB= 1501094 72240460 BOLT5 227J SUB= 123899X6 7603J "TRAY T, BATTERY"7 109440X NLA9 4171R CLIP T

10 7661J HARNESS T11 7662J SUB= 4152J12 100541K SUB= 7697J13 7192J WIRE TIE14 104445X SWITCH-INTER. GT15 4206J CABLE-BATTERY T16 4406R SUB= STD36540218 109788X SUB= 124211X19 109434X KEY MOLDED20 109081X SUB= 14615421 105381X SUB= 110712X22 73680400 SUB= 7369040024 4208J SUB= 4799J26 719J SUB= 15433627 4207J CABLE T30 17021008 SCREW

30A 109748X RELAY ASSY T31 2751R CLIP T32 109596X HOSE CLAMP T33 10090400 SUB= 1004040034 73350400 NUT35 74780408 BOLT36 73510400 NUT37 CHECK WITH SUPPLIER39 73220400 SUB= 5067540 11050400 LOCKWASHER43 10040400 LOCKWASHER45 108824X FUSE HYT46 9433R AMMETER T47 6009J SUB= 53213170848 10101000 SUB= 1007100049 73911000 NUT50 19070818 WASHER51 102501X SUB= 14194052 235R CLIPT53 11030400 LOCKWASHER GT54 106315X SUB= 13566555 4021J SWITCH.PTO.T56 4022J HEX NUT T57 109787X SUB= 14762658 109869X SWITCH T59 71031008 SCREW60 73951000 "NUT,KEPS"

101539X SHEET INSTR LT109634X NLA

YTH160BT (1999 & Before) Page 11 of 32HARDWARE (CHASSIS AND ENCLOSURES)

YTH160BT (1999 & Before) Page 12 of 32HARDWARE (CHASSIS AND ENCLOSURES)

Ref # Part Number Qty Description66 73680500 SUB= 7369050070 73680600 SUB= 7369060073 19132012 WASHER87 74760616 BOLT

105 74760510 NLA108 17490616 SCREW GTV111 19131616 WASHER HYT

YTH160BT (1999 & Before) Page 13 of 32HARDWARE (DRIVE)

YTH160BT (1999 & Before) Page 14 of 32HARDWARE (DRIVE)

Ref # Part Number Qty Description6 74780408 BOLT7 10040400 LOCKWASHER8 17210806 SCREW

19 73510600 NUT38 19131312 WASHER53 73680600 SUB= 7369060065 17720408 SCREW66 17490624 SCREW LT67 11050600 LOCKWASHER68 74760612 SUB= 7478061269 74760616 BOLT70 72140606 BOLT79 10040600 LOCKWASHER83 17021008 SCREW85 74760636 BOLT88 19091016 WASHER89 72140506 BOLT90 73680500 SUB= 73690500

YTH160BT (1999 & Before) Page 15 of 32HARDWARE (LIFT ADJUSTMENT)

YTH160BT (1999 & Before) Page 16 of 32HARDWARE (LIFT ADJUSTMENT)

Ref # Part Number Qty Description7 73680600 SUB= 73690600

10 105848X "BOLT, SHOULDER LT"35 72140608 SUB= 7211060836 72140606 BOLT

YTH160BT (1999 & Before) Page 17 of 32HARDWARE (MOWER)

YTH160BT (1999 & Before) Page 18 of 32HARDWARE (MOWER)

Ref # Part Number Qty Description1 73680600 SUB= 73690600

55 72140506 BOLT56 19111116 WASHER57 73680500 SUB= 7369050058 74760648 BOLT - HEX 3/8 - 16 X 359 74110632 SCREW YT61 19111216 WASHER M62 74760580 BOLT63 74760524 BOLT.HEX.5/16-1.564 9173R SPLIT SPACER RT65 72140505 BOLT66 17490612 SCREW67 72140606 BOLT70 72110506 SUB= 72270506

YTH160BT (1999 & Before) Page 19 of 32HARDWARE (STEERING)

YTH160BT (1999 & Before) Page 20 of 32HARDWARE (STEERING)

Ref # Part Number Qty Description31 73680600 SUB= 7369060033 19131312 WASHER70 17490612 SCREW71 CHECK WITH SUPPLIER

YTH160BT (1999 & Before) Page 21 of 32LIFT ADJUSTMENT

YTH160BT (1999 & Before) Page 22 of 32LIFT ADJUSTMENT

Ref # Part Number Qty Description1 100734K SUB= 1380572 73220600 NUT.HEX.3/8-16UNC3 100735K ROD ADJUST LT4 76020308 SUB= 31455 2876H SPRING T6 19131016 WASHER8 19151216 WASHER9 101272X SUB= 101272K

11 109413X GRIP12 105723X SUB= 125925X13 104597X LEVER ASSY LT14 8330H KEY STD15 23180606 SCREW16 4939M SUB= 8590217 104598X ROD ASSY-LEVER LT18 CHECK WITH SUPPLIER19 19171516 WASHER T20 110029X LIFT LINK LT21 109990X SHAFT T22 105855X LINK LIFT LT23 106204X SUB= 13279324 73680600 SUB= 7369060025 12000037 KLIP RING26 105864X "BRACKET, SUSPE T"27 106854X SUB= 121252X28 105862X SUB= 121598X29 9135R SPRING H30 106308X SUB= 13017132 73220800 NUT33 105863X SUB= 121599X34 12000029 RING37 19292016 WASHER

YTH160BT (1999 & Before) Page 23 of 32MOWER


Ref # Part Number Qty Description1 73680600 SUB= 736906002 19131614 WASHER3 102403X IDLER-FLAT T4 106514X SUB= 106902X5 106902X SPACER RETAINER6 677A451 IDLER-INSIDE T7 106513X "WASHER, WEAR LT"8 108127X ARM IDLER HYT9 109776X PIVOT PIN T

10 106523X "SUPPORT YT, BAR"11 106522X BRACE-IDLER YT12 102948X IDLER-FLAT YTV13 106525X SPACER YT14 106037X SUB= 13681915 106214X GUARD YT16 106085X BELT-V.79.1.MWR17 73220600 NUT.HEX.3/8-16UNC18 10040600 LOCKWASHER19 102932X IDLER.FLAT.GTV20 106526X ARM-IDLER YT21 100123L SPRING LT24 109599X BRACKET LH YTH25 105662X LINK.PARALLEL26 CHECK WITH SUPPLIER27 105744X "ROD, FRT. PARAL T"28 109835X HINGE PIN T29 109600X BRACKET RH YTH30 108119X GUARD BELT HYT31 106679X DECAL.WARNING.T31 109819X NLA32 8418J SUB= 13632133 105690X SUB= 14472934 CHECK WITH SUPPLIER35 106734X SUB= 123713X36 5846R SUB= 110452X37 109743X SUB= 13760738 109785X DEFLECTOR SHIELD39 78850 SUB= 8546339 107339X DECAL HYT40 19111016 WASHER41 106975X DECAL - SAFETY STANDARD42 106735X ROD-HINGE T43 106635X SUB= 2503444 74610624 BOLT.3/8-24X1-1/245 19132012 WASHER46 7631J RUNNER-LH M47 109278X SUB= 123807X48 108359X SUB= 123808X49 108592X DECAL HYT50 105185X DECAL-INST YT51 72140614 BOLT52 72140608 SUB= 7211060853 72140612 BOLT54 74760620 SUB= 7478062055 72140506 BOLT56 19111116 WASHER60 74760612 SUB= 7478061268 102727X "SPRING.EXT.8.5"""


Ref # Part Number Qty Description69 73930600 LOCKNUT71 72110505 BOLT72 1685H SUB= 6847873 109729X ROLLER T74 19151610 WASHER T75 19151616 SUB= 19171616

YTH160BT (1999 & Before) Page 26 of 32PUMP

YTH160BT (1999 & Before) Page 27 of 32PUMP

Ref # Part Number Qty Description2 108907X RESERVOIR CVR HYT3 108908X RESERVOIR BDY HYT5 108910X SEAL RING HYT6 108911X COVER7 108912X PIN HYT8 108913X RETAINING RING9 108914X WASHER HYT

10 108915X NLA11 108916X GUIDE FITTING HYT12 108917X NLA13 108918X NLA14 108919X SPRING HYT15 108920X SEAL RING HYT16 108921X PUMP ROTOR HYT17 108922X PUMP RACE HYT18 108923X NLA19 108924X PISTON HYT20 108925X NLA21 108926X O RING HYT22 108927X PINTLE23 108928X NLA24 108929X SUB= 108952X25 108930X SNAP RING26 108931X SUB= 108950X27 108932X INPUT SHAFT HYT28 108933X SUB= 108949X29 108934X O RING HYT30 108935X NUT&GASKET AS HYT31 108936X SHAFT DUMP HYT32 108937X SEAL HYT33 108938X CONTROL SHAFT34 108939X SUB= 108938X35 108940X NLA36 108941X NLA37 108942X VALVE BODY HYT38 108943X "HYT, BALL"39 108944X RETAINER RING HYT40 108945X SPRING HYT41 108946X SUB= 108961X42 108947X SUB= 108960X43 108948X BODY HYT44 108949X SEAL HYT45 108950X "HYT, BEARING"46 108951X SNAP RING47 108952X RETAINER RING HYT48 108953X NLA49 108954X NLA50 108955X RETAINER RING HYT51 108956X OUTPUT SHAFT52 108957X KEY HYT53 108958X MOTOR RACE HYT54 108959X CAP SCREW HYT55 108960X O RING HYT56 108961X PLUG HYT

YTH160BT (1999 & Before) Page 28 of 32STEERING


Ref # Part Number Qty Description1 104590X DECAL - STEERING WHEEL2 100710L INSERT-WHEEL LT3 73360800 NUT4 100712K WASHER5 100713N SUB= 1505476 100711L ADAPTER LT7 106945X TUBE YT8 106943X SPACER LT9 6447J SUB= 132781

10 19131316 WASHER11 11050600 LOCKWASHER12 73610600 SUB= 7810H13 104757X HUB CAP14 106933X KNOB T (1/2-HOLE)15 108353X NLA16 108194X NLA17 108196X BRKT CONTROL HYT18 109557X STEERING SHAFT T19 2882J DRIVE PIN20 74580 SHAFT SPACER LT21 71208 BUSHING22 109432X SUB= 110150X23 19212016 WASHER D24 12000029 RING25 6266H WASHER .T26 108683X ROD STEERING T27 108972X WASHER HYT28 108684X GEAR.SECTOR.HYT29 106126X KEY-WOODRUFF LT30 76020412 COTTER PIN31 73680600 SUB= 7369060032 108200X WASHER FRIC HYT34 108518X BOLT HYT35 19212016 WASHER D36 108201X SPACER HYT37 108397X LINK CONTROL HY38 108844X SPRING HYT39 19132012 WASHER40 74760648 BOLT - HEX 3/8 - 16 X 341 108209X ARM ASSEM HYT42 105663X SUPPORT-SADDL T43 74761060 BOLT LT44 105664X SUPPORT.SADDLE.FT45 105727X LINK-DRAG LT46 10040600 LOCKWASHER47 10040500 LOCKWASHER48 108110X ROD TIE HYT49 73610500 NUT50 105655X SPINDLE LH YT51 105726X SUB= 15439152 105725X SUB= 110438X53 19252016 SUB= 121749X54 3366R COL. SRTG. BEAR.55 73901000 "NUT-LOC,FLANGE LT"56 108075X FRONT AXLE57 105653X SUB= 13089758 278H FITTING LT59 65139 VALVE STEM LT


Ref # Part Number Qty Description60 59192 VALVE CAP61 9040H "FLANGE, BEARING"62 106732X SUB= 106732X41763 106222X SUB= 122073X

63A 59904 TUBE.5.3/4.5/664 73350600 NUT65 108212X TRUNION HYT66 108213X ROD-ADJ. CONTROL67 108205X "HYT, BELLCRANK"68 108198X SPACER HYT69 74760624 SUB= 7493062473 6855M ZERK M74 19252616 SUB= 121748X75 5320R INSUL CLIP T76 2751R CLIP T77 108685X GEAR PINION T78 109816X NYLINER T79 101930X WASHER YTV

YTH160BT (1999 & Before) Page 31 of 32TRANSAXLE

YTH160BT (1999 & Before) Page 32 of 32TRANSAXLE

Ref # Part Number Qty DescriptionREFER TO IMAGE

1 778197 PINION, 10T2 778198 GEAR BEVEL3 786019 PIN DRIVE4 786027 BLOCK DRIVE5 774028A CARRIER, DIFFERENTIAL6 774029A CARRIER, DIFFERENTIAL7 778033A GEAR, RING8 774526 AXLE9 774527 AXLE

10 780107 WASHER11 780042 WASHER THRUST12 792018 RING STRAP13 792020 SCREW, 1/4-20 X 2-1/414 792006 WASHER LOCK 1/415 770052 CASE ASSY16 780013 BEARING, NEEDLE17 780088 BEARING, NEEDLE18 772085 COVER ASSY19 780089 BEARING, NEEDLE20 782041A HOUSING & BUSHING ASSY21 780054 BUSHING22 782042A HOUSING & BUSHING ASSY23 776207 SHAFT, BRAKE24 788044 GASKET25 778036 GEAR, OUTPUT26 778083 GEAR, IDLER27 778041 SHAFT, OUTPUT28 786017 SPACER29 780001 WASHER30 780090 WASHER, THRUST31 788008 SEAL, OIL32 786026 PIN DOWEL33 792046 SCREW34 792122 PLUG36 790027 DISK, BRAKE37 790006 PAD BRAKE38 790007 PLATE BRAKE PAD39 790025 HOLDER BRAKE PAD40 790017 LEVER, BRAKE41 792076 WASHER, FLAT42 792075 LOCKNUT 5/16-2443 792073 SCREW, 1/4-20 X 1-1/4

43A 792085 SCREW FLNG HEX 1/4-20 X 2-1/444 786086 BRKT BRAKE LEVER45 786066 SPACER

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Roper YTH160BT Mower Diagrams