AYP8186B79 (1997) Page 1 of 47
CHASSIS AND ENCLOSURES
AYP8186B79 (1997) Page 2 of 47
CHASSIS AND ENCLOSURES
Ref # Part Number Qty Description
1 159530 CHASSIS ASM
2 140356 SUB= 145009
3 17490612 SCREW
4 19131216 WASHER
5 155272 BUMPER-HOOD/DASH
6 155923 SADDLE
8 126471X "CLIP,INSULATOR"
9 147633X011 DASH SILKSCREEN
10 72140608 SUB= 72110608
11 156682 PANEL ASM DASH LH
12 145660 CLIP.TINNERMAN
13 157230 PANEL DASH RH
14 17490608 SCREW LT
15 74180512 SCREW
16 73510500 NUT
17 139394X505 SUB= 159639X505
20 156437 "PLATE-MTG,BATT/FU"
23 124028X SUB= 532124028
24 74780616 BOLT
25 19131312 WASHER
26 73800600 NUT
28 157373 GRILLE-MS428
29 140273 LENS GRILLE
30 140002X505 FENDER.PNT.
31 137113 BRKT.ASM.FENDER
33 145244X505 FOOTREST.LH.LT/GT
34 145243X505 FOOTREST.RH.LT/GT
35 72110606 BOLT
37 17490508 SCREW LT
38 139886 BRACKET ASM LH
37 139887 BRACKET ASM RH
44 140675 STRAP ASM FENDER
47 105531X NUT-PUSH YT
51 73800400 NUT
52 19091416 WASHER
53 144697 BRACKET.GRILLE.LH
54 17030814 SUB= 91817030814
55 144696 BRACKET.GRILLE.RH
57 74780412 SUB= 74780414
58 140547 DUCT.AIR.B&S.18HP
71 73680400 SUB= 73690400
74 73680600 SUB= 73690600
108 74760612 SUB= 74780612
140 158418 BRKT SUSPENSION
145 156524 "ROD POVOT,CHASSIS"
147 74760412 BOLT LT
AYP8186B79 (1997) Page 3 of 47
DECALS
AYP8186B79 (1997) Page 4 of 47
DECALS
Ref # Part Number Qty Description
1 158169 "DECAL DECK,MULCH"
2 158243 "DECAL CHASSIS 46"""
3 146676 DECAL.HD.RH.WIZAR
4 146677 DECAL.HD.LH.WIZAR
6 145005 DECAL.BATRY.3-3908
8 106202X REFLECTOR-TAIL YT
9 127521 NLA
10 146678 DECAL.INS.STRG.WL
11 157002 "DECAL DANGER,FEND"
12 4900J DECAL T
13 139346 "DECAL.V.BELT.44"""
16 156867 "DECAL DASH,OPER."
17 158270 DECAL INSERT HOOD
18 273063 DECAL, HP, ENGINE
133671 FOOTREST PAD
138311 DECAL HANDLE LIFT
159785 MANUAL.O.8186B79
AYP8186B79 (1997) Page 5 of 47
DRIVE
AYP8186B79 (1997) Page 6 of 47
DRIVE
Ref # Part Number Qty Description
1 REFER TO IMAGE
2 110422X SUB= 146682
3 121327X PULLEY TRANSAXLE
5 123787X STRAP TORQUE
6 17490512 SCREW
8 141002 ROD SHIFT FEND YT
10 76020416 PIN COTTER 1/8
11 105701X WASH-SHFT PLT LT
13 74550412 BOLT.1/4-28.W/PAT
19 73800600 NUT
21 106933X KNOB T (1/2-HOLE)
22 145340 ROD.ASM.BK.44.MWR
24 73350600 NUT
25 126909X "SPRING,ROD BRAKE"
26 19131316 WASHER
27 76020412 COTTER PIN
28 145204 ROD.BRAKE.PARK.LT
29 124236X CAP
30 123780X BRKT TRANS LH
31 123791X KEEPER BELT LH
34 155071 SHAFT ASM-PEDAL F
35 120183X NYLON BEARING
36 19211616 WASHER LT
37 1572H SUB= 2882J
38 123674X PULLEY.IDLER.FLAT
39 74760644 BOLT
40 4470J SPACER T
41 154777 SUB= 165692
42 19131312 WASHER
47 127783 SUB= 139245
48 154604 BELLCRANK ASM
49 123205X RETAIN BELT
50 74760624 SUB= 74930624
51 73680600 SUB= 73690600
52 73680500 SUB= 73690500
53 105710X "LINK, CLUTCH T"
54 126471X "CLIP,INSULATOR"
55 105709X "SPRING, RETURN LT"
56 74760620 SUB= 74780620
57 123796X BELT.GRDRV.94.75
58 123792X "KEEPER,BELT RH"
59 140312 KEEPER BELT CNTSP
61 17490612 SCREW
62 8883R PEDAL COVER T
63 134826 SUB= 136005
64 71170764 BOLT
65 10040700 LOCKWASHER
66 154778 KEEPER-BELT
70 156470 "GUIDE.BELT,RH ENG"
72 19132012 WASHER
74 108097X SPACER HYT
76 12000053 E RING HYT
77 9396E SQ KEY STD
79 2228M SUB= 2228M1
80 123794X "ARM,SHIFT"
81 123772X "SHAFT,SHIFTER"
82 123782X "SPRING,TORSION"
83 19171216 WASHER
AYP8186B79 (1997) Page 7 of 47
DRIVE
Ref # Part Number Qty Description
84 155189 "ROD LINK,SHIFT AD"
85 150360 NUT.CNT.LOCK.1/4
86 71208 BUSHING
87 19212016 WASHER D
88 12000008 KLIP RING
89 139992 CONSOLE SHIFTER
90 124346X NUT
96 4497H RETAINER M
100 19111216 WASHER M
102 141322 WASHER BELLEVILLE
103 73940800 SUB= 73360800
110 74760612 SUB= 74780612
111 123776X BRKT TRANS RH
112 19091216 WASHER PM
115 19132203 WASHER GT
116 72110610 BOLT RDHD 3/8-16
118 154774 SPACER-BELLCRANK
121 154419 NYLINER-CLUTCHING
135 123800X WASHER
137 19111212 WASHER
138 19112016 WASHER
139 74780612 BOLT
140 159140 SUB= 160849
AYP8186B79 (1997) Page 8 of 47
ELECTRICAL
AYP8186B79 (1997) Page 9 of 47
ELECTRICAL
Ref # Part Number Qty Description
1 144925 SUB= 123899X
2 74760412 BOLT LT
3 19091016 WASHER
4 10040400 LOCKWASHER
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 4799J "CABLE T, BATTERY"
25 146148 CABLE.6GA.22W/16W
26 108824X FUSE HYT
28 145491 CABLE.GRND.6GA.21
29 121305X SWITCH SEAT
30 140301 SWITCH IGN 4POS
31 124211X NUT IGNITION
32 141226 COVER KEY SWITCH
33 122147X KEY
40 156442 HARNESS-IGNITION
41 71110408 BOLT HXHD FIN
42 131563 SUB= 154336
43 145673 SUB= 146154
44 73640400 NUT HXKEP 1/4X20
45 121433X SUB= 122822X
52 141940 PROTECTION LOOP
55 17490508 SCREW LT
70 140413 HARNESS ENG DUAL
AYP8186B79 (1997) Page 10 of 47
ENGINE
AYP8186B79 (1997) Page 11 of 47
ENGINE
Ref # Part Number Qty Description
1 141295 CONTROL THRT 35.5
2 17720410 SCREW LT
3 42D707 ENGINE, BRIGGS
4 149723 MUFFLER.TW.LOTONE
5 144068 EXHAUST.B&S.18.RH
6 144069 EXHAUST.B&S.18.LH
7 138129 CLAMP.TUBE.DBL.EN
8 150176 BOLT.5/16-18.UNC
10 145552 SHIELD.HEAT.
11 10040400 LOCKWASHER
12 74780412 SUB= 74780414
13 272250 GASKET MUFFLER
14 13280336 PIPE NIPPLE LT
15 13200300 ELBOW
16 11050600 LOCKWASHER
17 17490624 SCREW LT
23 156123 SHIELD-HEAT
25 145996 CONTROL.CHOKE.37
26 73920600 "NUT,KEPS 3/8-24IM"
27 152927 "SCREW-TT,10-32 FL"
29 137180 SUB= 532137180
31 151346 TANK FUEL REAR
32 140527 CAP ASM FUEL
33 123487X HOSE CLAMP
34 106082X PAD-SPACER LT
35 17490512 SCREW
37 8543R FUEL LINE T
38 REFER TO IMAGE
39 109227X PAD IDLER TI
40 3645J BUSHING OUTLET T
41 139277 STEM.TANK.FUEL
81 128861 NUT
90 159520 GUARD-DEBRIS
91 71110408 BOLT HXHD FIN
92 19091016 WASHER
93 123976X SUB= 73900400
AYP8186B79 (1997) Page 12 of 47
ENGINE BRIGGS & STRATTON
AYP8186B79 (1997) Page 13 of 47
ENGINE BRIGGS & STRATTON
Ref # Part Number Qty Description
1 497074 CYLINDER ASSEMBLY
2 399265 P/N CONFLICT - CHECK WITH SUPPLIER
3 391086 SEAL, OIL
4 493304 BASE ASSEMBLY, CRANKCASE
5 493457 HEAD, CYLINDER #1
5A 493458 HEAD CYLINDER #2
7 271867 GASKET, CYLINDER HEAD #1
7A 271868 GASKET, CYLINDER HEAD #2
8 495754 BREATHER ASSEMBLY #1
8A 222892 COVER, BREATHER CYLINDER #2
9 27803 GASKET, VALVE COVER
10 94382 SCREW, SEMS
10A 94830 SCREW, SEMS
11 280225 TUBE, BREATHER
12 273208 GASKET, CRANKCASE, .015" THICK
12A 271188 GASKET, CRANKCASE COVER,.005"
12B 271189 GASKET, CRANKCASE COVER,.009"
13 94565 SCREW, CYLINDER HEAD
15 94239 PLUG, OIL DRAIN
16 394028 CRANKSHAFT
16A 94196 KEY, TIMING GEAR
20 291675 SEAL, OIL
22 94724 SCREW
23 491180 FLYWHEEL & RING GEAR ASSY, MAGNETO
24 222698 KEY, FLYWHEEL
25 498584 PISTON ASSEMBLY STANDARD SIZE
25A 498585 PISTON ASSEMBLY .010" OVERSIZE
25B 498586 PISTON ASSEMBLY .020" OVERSIZE
25C 498507 PISTON ASSEMBLY .030" OVERSIZE
26 394959 RING SET, PISTON, STANDARD SIZE
26A 394960 RING SET, PISTON,.010" OVERSIZE
26B 394961 RING SET, PISTON,.020" OVERSIZE
26C 394962 RING SET, PISTON,.030" OVERSIZE
27 263129 LOCK, PISTON PIN
28 498319 PIN, PISTON, STD SIZE
28A 391286 PIN ASSEMBLY, PISTON .005" OVER
29 394306 ROD ASSEMBLY, CONNECTING
29A 397158 ROD ASSEMBLY, CONNECTING
32 94671 SCREW, CONNECTING ROD
33 390420 VALVE, EXHAUST
34 261528 VALVE, INTAKE
35 65906 SPRING, INTAKE VALVE
36 26828 SPRING, EXHAUST VALVE
40 221596 RETAINER, INTAKE VALVE
41 292260 RETAINER, EXHAUST VALVE
42 494553 KEEPER VALVE
45 261368 TAPPET, VALVE
46 213520 GEAR, CAM
50 213290 MANIFOLD, INTAKE
51 271412 GASKET, CARBURETOR & INTAKE ELBOE
51A 281411 SPACER, CARBURETOR
52 270884 GASKET, INTAKE MANIFOLD MOUNTING
53 93970 SCREW, SEMS, CARBURETOR MOUNTING
54 93208 SCREW, SEMS INTAKE MANIFOLDING MOUNTING
75 222511 WASHER SPRING
78 95039 SCREW HEX
90 495181 CARBURETOR ASSEMBLY
93 231209 BUSHING, THROTTLE SHAFT
AYP8186B79 (1997) Page 14 of 47
ENGINE BRIGGS & STRATTON
Ref # Part Number Qty Description
94 491538 VALVE ASSEMBLY, CARBURETOR IDLE
95 93499 SCREW
96 221939 VALVE, THROTTLE
97 392672 SHAFT AND LEVER, THROTTLE
98 91920 SCREW, MACHINE, FILLISTER HEAD
99 26157 SPRING, THROTTLE ADJUSTMENT
102 271607 GASKET, CARBURETOR BODY
103 298514 FLOAT, CARBURETOR
104 231435 PIN FLOAT HINGE
105 394683 VALVE, FUEL INLET
107 491543 BODY, LOWER CARBURETOR
108 223534 VALVE, CHOKE
109 392673 SHAFT AND LEVER, CHOKE
116 O-RING O-RING
117 231338 JET, NEEDLE VALVE
117A 231333 JET NEEDLE VALV FXD HI ALT
119 94152 SCREW, SEMS, HEX HEAD
121 491539 CARBURETOR OVERHAUL KIT
127 223472 PLUG, WELCH
161 496599 BODY, AIR CLEANER
165 94289 NUT, WING
187 299146 LINE, FUEL, 28"(CUT TO SUIT)
188 94627 SCREW, SEMS 3/4"
201 262683 LINK, GOVENOR
202 262684 LINK. THROTTLE
203 280997 CRANK, BELL
205 93971 SCREW, SHOULDER
206 94298 NUT, SQUARE
207 262337 SPRING, COMPRESSION
209 262352 SPRING, GOVERNOR
209A 261563 SPRING, GOVERNOR IDLE
219 394348 GEAR, GOVERNOR
219A 393415 OIL SLINGER ASSEMBLY
220 222773 WASHER, THRUST
222 491282 PLATE ASSEMBLY, GOVERNOR CONTROL
224 94297 SCREW, PAN HEAD
227 491297 LEVER ASSEMBLY, GOVERNOR
229 62199 WASHER
230 223882 WASHER, GOVERNOR CRANK, INSIDE
235 224995 SHIELD, SPITBACK
240 394358 FILTER, FUEL
244 230318 CONNECTOR, IMPULSE PUMP
257 93897 SCREW, SEMS
258 94623 SCREW, SEMS, CYLINDER SHIELD MTG.
259 223890 BRACKET, CABLE
265 221535 CLAMP
267 94906 SCREW
284 94674 SCREW, HEX HEAD
284A 94882 SCREW, HEX HEAD
304 495469 HOUSING, BLOWER, RED
305 94786 SCREW
306 222846 SHIELD, CYLINDER
306A 223734 SHIELD, CYLINDER
307 94930 SCREW
308 224774 COVER, AIR GUIDE
308A 224775 COVER, AIR GUIDE
309 497596 MOTOR, STARTER
310 94003 BOLT
AYP8186B79 (1997) Page 15 of 47
ENGINE BRIGGS & STRATTON
Ref # Part Number Qty Description
311 497608 BRUSH SET
332 230674 NUT, HEX
333 394891 ARMATURE GROUP MAGNETRON IGNITION
334 94731 SCREW, SEMS
337 802592 PLUG, SPARK
356 494705 WIRE, STOP
358 491856 GASKET SET
363 19203 PULLER, FLYWHEEL
383 89838 WRENCH SPARK PLUG
387 280197 BODY, PUMP
392 261395 SPRING, PUMP
394 270988 DIAPHRAGM
414 220680 WASHER
422 222875 CLAMP, OIL FILLER
432 221377 CAP, SPRING
434 223688 COVER, DIAPHRAGM
435 93829 SCREW, DIAPHRAGM COVER
445 394019 CARTRIDGE AIR CLEANER
468 497908 SCREEN, ROTATING
474 393474 STATOR, ALTERNATOR, DUAL CIRCUIT
482 93621 SCREW, SEMS
510 497606 DRIVE, STARTER
523 494947 CAP AND DIPSTICK
524 271157 SEAL, FILLER TUBE
525 495348 TUBE, OIL FILLER
528 383815 HOSE, VACUUM
534 94823 SCREW ROUND HEAD
535 272490 ELEMENT, FILTER
537 271411 GASKET AIR CLEANER
544 497603 ARMATURE, STARTER
552 262332 LOWER BUSHING, GOVERNOR
552A 262331 UPPER BUSHING GOVERNOR
556 93585 SCREW, HEX HEAD
562 93853 BOLT, GOVERNOR LEVER
567 94811 SCREW, HEX HEAD
569 272645 GASKET, CRANKCASE
572 224816 BAFFLE, AIR, CYLINDER #2
573 491304 BACK PLATE ASSEMBLY
592 92278 NUT, HEX
601 93053 CLAMP, HOSE, GREEN
615 94296 RETAINER, E-RING
615A 263080 RETAINER
616 491530 CRANK, GOVERNOR
634 271013 WASHER, THROTTLE SHAFT
634A 491287 SEAL, GOVERNOR SHAFT
635 66538 ELBOW, SPARK PLUG
642 225008 COVER, AIR CLEANER
643 496700 CARTRIDGE PLATES AIR CLEANER
653 93585 SCREW, HEX HEAD
726 391362 GEAR, RING
741 262989 GEAR, TIMING
783 280104 GEAR, STARTER
801 394860 CAP, DRIVE
802 497607 P/N CONFLICT - CHECK WITH SUPPLIER
803 497604 HOUSING, STARTER
819 94675 SCREW, HEX HEAD
842 270920 SEAL, OIL FILLER CAP
847 495715 DIPSTICK & TUBE ASSY