AYP CO18H42STA Parts List

CO18H42STA (2004) Page 1 of 23
Chassis And Enclosures

CO18H42STA (2004) Page 2 of 23
Chassis And Enclosures

Ref # Part Number Qty Description

1 174619 Chassis
2 176554 Drawbar
5 155272 Bumper Hood/Dash

9 187846X012 Dash
10 72140608 Bolt, Carriage 3/8-16 x 3/4
11 174996 Panel, Dash, L.H.
13 179174X010 Panel, Dash, R.H.
14 17490608 Screw Thdrol 3/8-16 x 1/2
17 183393X428 Hood
18 184921 Bumper Hood
26 73800600 Nut
28 183828 Grille/Lens Asm. (Includes Key Nos. 258, 259, 261, 263 and

264)

30 175692X428 Fend/Ftrest
31 139976 Bracket, Fender Support
37 17490508 Screw Thdrol 5/16-18 x 1/2
38 175710 Pivot Bracket Assembly, Rear
39 174714 Bracket Pivot Laser Lt
58 184322 Duct Intake
60 72140606 Bolt Rdhd Sqnk 3/8-16 UNC x 1
64 154798 Dash Lower STLT
74 73680600 Nut Crownlock 3/8-16 UNC

142 175702 Plate Reinforcement STLT
143 186689 Bracket Swaybar Chassis
144 175582 Bracket Pnt Footrest STLT
145 156524 Rod Pivot Chassis/Hood
159 155123X428 Cupholder Stlt Black
166 191611 Screw 10 x 3/4 Single Lead-Hex
206 170165 Bolt Shoulder 5/16-18 TT
207 17670508 Screw Thdrol 5/16-18 x 1/2 Tytt
208 17670608 Screw Thdrol 3/8-16 x 1/2
209 17000612 Screw Hexwsh Thdr. 3/8-16 x 3/4
258 183835X599 Lens RH
259 183834X599 Lens LH
261 183829X428 Insert Grille
263 183833 Bezel RH
264 183832 Bezel LH

5479J Plug, Button
187801 Plug, Dome Plastic

CO18H42STA (2004) Page 3 of 23
Decals

CO18H42STA (2004) Page 4 of 23
Decals

Ref # Part Number Qty Description

1 156811 Decal, Oper. Instr.

2 190746 Decal, Replacement

3 186163 Decal, Hood, R.H.

4 186164 Decal, Hood, L.H.

7 189508 Decal, HP Engine

9 172740 Decal, Fender
10 157141 Decal, Fender Danger
11 191649 Decal, Hood Side
13 183827 Decal, Dash Panel
14 160396 Decal, V-Belt Schematic
15 179128 Decal, Deck B 42"
18 172743 Decal, Steering
20 140055 Decal, Battery Dngr/Psn Eng

166960 Decal, Bypass
138311 Decal, Lift Handle
184310X428 Pad Footrest LH STLT
184311X428 Pad Footrest RH STLT
191663 Owner's Manual, English
191664 Owner's Manual, Spanish

CO18H42STA (2004) Page 5 of 23
Electrical

CO18H42STA (2004) Page 6 of 23
Electrical

Ref # Part Number Qty Description

1 163465 Battery

2 74760412 Bolt Hex Hd 1/4-20 Unc x 3/4

8 176689 Box Battery
16 176138 Switch, Interlock
21 183759 Harness Asm Light W/4152j
22 4152J Bulb Light #1156
24 4799J Cable Battery 6 Ga 11" red
25 146147 Cable Battery 6 Ga w/16 wire red
26 175158 Fuse
27 73510400 Nut Keps Hex 1/4-20 Unc
28 4207J Cable Ground 6 Ga 12" black
29 121305X Switch Plunger Normal Op Gray
30 175566 Switch Ign
33 140401 Key Ign
40 179720 Harness Ign
41 71110408 Bolt Blk. Fin Hex 1/4-20 Unc x 1/2
42 131563 Cover Terminal Red
43 178861 Solenoid
45 121433X Ammeter Rectangular 6 Amp
52 141940 Protection Wire Loop
90 180449 Cover Terminal

CO18H42STA (2004) Page 7 of 23
Engine

CO18H42STA (2004) Page 8 of 23
Engine

Ref # Part Number Qty Description

1 170551 Control, Throttle

2 17720408 Screw, Hex Head, Thread Cutting 1/4-20 x 1/2

3 Engine, B&S Model 31H777 (Order parts from engine

manuft.)

4 137352 Muffler
13 165291 Gasket
14 148456 Tube Drain Oil Easy
23 169837 Shield Brn/Dbr Guard
29 137180 Arrestor, Spark
31 184900 Tank, Fuel
32 140527 Cap Assembly, Fuel
33 123487X Clamp, Hose
37 137040 Line, Fuel
38 181654 Plug Drain Oil Easy
40 124028X Bushing, Snap, Fuel Line
44 17670412 Screw, Hex Washer Head, Thd., Roll. 1/4-20 x 3/4
45 17000612 Screw Hxwsh Thdr 3/8-16 x 3/4
46 19091416 Washer 9/32 x 7/8 x 16 Ga
72 183906 Screw Socket Head 5/16-18 x 1
78 17060620 Screw 3/8-16 x 1-1/4
81 73510400 Nut Keps Hex 1/4-20 Unc

CO18H42STA (2004) Page 9 of 23
Ground Drive

CO18H42STA (2004) Page 10 of 23
Ground Drive

Ref # Part Number Qty Description

1 Transmission (Order parts from transaxle mauftr.) Hydro

Gear Model 314-0510

8 165866 Rod, Shift
10 76020416 Pin, Cotter 1/8 x 1
14 10040400 Washer Lock 1/4
15 74490544 Bolt Hex Flghd 5/16-18 Gr. 5
16 73800500 Nut, Lock Hex w/Ins 5/16-18 unc
19 73800600 Nut Lock Hex w/Ins 3/8-16
21 106933X Knob
22 169498 Rod, Brake
24 73350600 Nut
25 106888X Spring, Rod, Brake
26 19131316 Washer 13/32 x 13/16 x 16 Ga.
27 STD561210 Pin, Cotter 1/8 x 3/4
28 175765 Rod, Parking Brake
29 71673 Cap, Parking Brake
30 169592 Bracket, Transmission
32 74760512 Bolt Hex 5/16-18 unc x 3/4
34 175578 Shaft, Foot Pedal
35 120183X Bearing, Nylon
36 19211616 Washer
37 1572H Pin, Roll
38 179114 Pulley, Composite
39 72110622 Bolt
41 175556 Keeper, Belt, Idler
47 127783 Pulley, Idler, V-Belt
48 154407 Bellcrank Clutch Grnd Drustl
49 123205X Retainer, Belt
50 72110612 Bolt Carr. Sh 3/8-16 x 1-1/2 Gr. 5
51 73680600 Nut
52 73680500 Nut Crownlock 5/16-18
53 105710X Link, Clutch
55 105709X Spring, Return, Clutch
56 17060620 Screw 3/8-16 x 1-1/4
57 140294 V-Belt, Drive
59 169691 Keeper, Belt, Center
61 17120614 Screw 3/8-16 x .875
62 8883R Cover, Pedal
63 175410 Pulley, Engine
64 173937 Bolt Hex 7/16 x 4 Gr. 5
65 10040700 Washer
66 154778 Keeper, Belt Engine Hydro
70 134683 Guide, Belt, Mower Drive RH
71 169183 Strap, Torque, Lh
73 169182 Strap, Torque, Rh
74 137057 Spacer, Axle
75 121749X Washer 25/32 x 1-1/4 x 16 Ga.
76 12000001 Ring, E
77 123583X Key, Square
78 121748X Washer 25/32 x 1-5/8 x 16 Ga.
81 165596 Shaft Asm Cross
82 165711 Spring, Torsion
83 19171216 Washer 17/32 x 3/4 x 16 Ga.
84 169594 Link Transaxle
89 164890X428 Console, Shift
90 124346X Nut Self-Thd Wshd 1/4
95 170201 Control Asm Bypass Hydro

CO18H42STA (2004) Page 11 of 23
Ground Drive

Ref # Part Number Qty Description

96 4497H Spring, Retainer 1"

112 19091210 Washer 9/32 x 3/4 x 10 Ga.
116 72140608 Bolt Rdhd Sq Neck 3/8-16 x 1
120 73900600 Nut Lock Flg 3/8-16
150 175456 Spacer Retainer
151 19133210 Washer 13/32 x 2 x 10
156 166002 Washer 5/16 x 1.0 x 1.25
158 165589 Bracket Shift Mount
159 183900 Hub Shift
161 72140406 Bolt Rdhd Sqnk 1/4-20 x 3/4 Gr. 5
162 73680400 Nut Crownlock 1/4-20 unc
163 74780416 Bolt Hex Fin 1/4-20 x 1
165 165623 Bracket Pivot Lever
166 17490510 Screw 5/16 x 18 x 5/8
168 165492 Bolt Shoulder 5/16-18 x .561
169 165580 Plate Fastener Cross Shaft
197 169613 Nyliner Snap-In
198 169593 Washer Nyliner
199 169612 Bolt Shoulder 5/16-18 unc
200 72140508 Bolt Rd Hd Sqnk 5/16-18 unc x 1
202 72110614 Bolt Carr. Sh 3/8-16 x 1-3/4 Gr. 5
212 145212 Nut Hex Flange Lock
263 17000612 Screw 3/8-16 x 3/4

CO18H42STA (2004) Page 12 of 23
Lift Assembly

CO18H42STA (2004) Page 13 of 23
Lift Assembly

Ref # Part Number Qty Description

1 159461 Washer Asm Inner Spring W/Plunger

2 159476 Shaft Asm. Lift

3 188822 Pin Groove

4 12000002 E Ring #5133-62

5 19211621 Washer 21/32 x 1 x 21 Ga.

6 120183X Bearing Nylong

7 125631X Grip Handle Fluted

8 124526X Button Plunger
11 139865 Link Asm Lift L.H.
12 139866 Link Asm Lift R.H.
13 4939M Retainer Spring
15 173288 Link Front
16 73350800 Nut Jam Hex 1/2-13 Unc
17 175689 Trunnion Blk Zinc
18 73800800 Nut Lock w/Wsh 1/2-13 Unc
19 139868 Arm Suspension Mower
20 163552 Retainer Spring
31 169865 Bearing, Pvt. Lift
32 73540600 Nut Crownlock 3/8-24

CO18H42STA (2004) Page 14 of 23
Mower Deck

CO18H42STA (2004) Page 15 of 23
Mower Deck

Ref # Part Number Qty Description

1 165892 Mower Deck Assembly, 42"

2 72140506 Bolt

3 138017 Bracket Assembly,Sway Bar, Front

4 165460 Bracket Sway Bar 38/42" Deck

5 4939M Retainer Spring

6 178024 Bar Sway Deck

8 850857 Bolt, Hex 3/8-24 x 1.25 Gr. 8

9 10030600 Washer, Lock
10 140296 Washer, Hardened
11 134149 Blade, 42" Mulching Std (For mulching mowers only)

139775 Blade, 42" Mulching Premium (For better wear when

mulching)

138971 Blade, 42" Hi-Lift (For bagging or discharging)
13 137645 Shaft Assembly, Mandrel, Vented
14 128774 Housing, Mandrel, Vented
15 110485X Bearing, Ball, Mandrel
16 174493 Stripper, Vented Mower Deck
18 72140505 Bolt, Carriage 5/16-18 x 5/8
19 132827 Bolt, Shoulder
20 159770 Baffle, Vortex
21 73680500 Nut Crownlock 5/16-18 Unc
23 177563 Bracket, Deflector
24 105304X Cap, Sleeve
25 123713X Spring, Torsion, Deflector
26 110452X Nut, Push
27 130968X428 Shield, Deflector
28 19111016 Washer 11/32 x 5/8 x 16 Ga.
29 131491 Rod, Hinge
30 173984 Screw Thdrol Washer Head
31 187690 Washer, Spacer
32 173436 Pulley, Mandrel
33 178342 Nut, Toplock, Flanged
34 72110612 Bolt Carr. Sh 3/8-16 x 1-1/2 Gr. 5
36 173438 Pulley, Idler, Flat
40 73900600 Nut Crownlock 3/8-16 Unc
44 140088 Guard, Mandrel, L.H.
45 4497H Retainer
46 137729 Screw, Thd. Roll 1/4-20 x 5/8
48 133944 Washer, Hardened
52 139888 Bolt, Shoulder 5/16-18 Unc
53 184907 Arm Assembly, Pad, Brake
54 178515 Washer, Hardened
55 155046 Arm, Idler
56 122052X Spacer, Retainer
59 173442 Guard, TUV Idler
67 171598 Knob
68 144959 V-Belt
92 73800600 Nut

101 136420 Mulcher Cover
102 71081010 Screw
103 19061216 Washer #10
104 10071000 Washer, Lock
105 160793 Latch Assembly, Bagger
106 2029J Nut, Weld
111 179292 Bracket Gauge Wheel Lh
112 179293 Bracket Gauge Wheel Rh
113 17000510 Screw 5/16-18 Unc

CO18H42STA (2004) Page 16 of 23
Mower Deck

Ref # Part Number Qty Description

116 4898H Bolt Shoulder
117 165746 Wheel Gauge Std
118 73930600 Nut Centerlock 3/8-16 Unc
119 19121414 Washer 3/8 x 7/8 x 4 Ga.
129 19131312 Washer 13/32 x 13/16 x 12 Ga.
130 74780616 Bolt, Fin Hex 3/8-16 Unc x 1 Gr. 5
131 72140608 Bolt, Rdhd Sqnk 3/8-16 Unc x1
142 165890 Arm Spring Brake Mower
143 157109 Bracket Arm Idler 42"
144 173441 Keeper Belt 42" Clutch Cable
145 173437 Pulley Idler Flat
146 173443 Bolt Carriage Idler
147 131335 Spring Extension
148 169022 Spring Return Idler
149 165898 Retainer Spring Yellow Zinc
150 19091210 Washer 9/32 x 3/4 x 10 Ga.
152 169676 Cable Clutch 42 In
158 17720408 Screw Hex Thd Cut 1/4-20 x 1/2
159 72140614 Bolt Rdhd Sqn 3/8-16 Unc x 3/4
184 19131410 Washer 13/32 x 7/8 x 10 Ga.
185 188234 Head Asm. Cable Clutch

130794 Mandrel Assembly (Includes Housing, Shaft and Shaft

Hardware Only - Pulley Not Included)

169583 Replacement Mower, Complete (Std. Deck-Order separately

mulcher cover and gauge wheel components key nos. 101 ­106 and 116 - 119)

CO18H42STA (2004) Page 17 of 23
Schematic

CO18H42STA (2004) Page 18 of 23
Seat Assembly

CO18H42STA (2004) Page 19 of 23
Seat Assembly

Ref # Part Number Qty Description

1 188720 Seat
2 140551 Bracket Pivot Seat
3 71110616 Bolt Fin Hex 3/8-16 Unc x 1
4 19131610 Washer 13/32 x 3/4 x 10 Ga
5 145006 Clip Push In Hinged
6 73800600 Nut Hex Lock w/Ins 3/8-16 Unc
7 124181X Spring Seat Cprsn 2 250 Blk Zi
8 17000616 Screw 3/8-16 x 1

9 19131614 Washer 13/32 x 1 x 14 Ga
10 182493 Pan Seat
11 166369 Knob Seat Adj Wingnut
12 121246X Bracket Pnt Mounting Switch
13 121248X Bushing Snap Blk Nyl 50 Id
14 72050412 Bolt Rdhd Sht Nk 1/4-20 x 1-1/2
15 134300 Spacer Split 28 x 96 Zinc
16 121250X Spring Cprsn 1 27 Blk Pnt
17 123976X Nut Lock 1/4 Lge Flg Gr 5 Zinc
21 171852 Bolt Shoulder 5/16-18 Unc-2A
22 73800500 Nut Hex Lock w/Ins 5/16-18
24 19171912 Washer 17/32 x 1-3/16 x12 Ga.
25 127018X Bolt Shoulder

CO18H42STA (2004) Page 20 of 23
Steering Assembly

CO18H42STA (2004) Page 21 of 23
Steering Assembly

Ref # Part Number Qty Description

1 184704X428 Steering Wheel

2 184706 Axle Assembly

3 169840 Spindle Assembly, L.H.

4 169839 Spindle Assembly, R.H.

5 6266H Bearing, Race, Thrust, Hardened

6 121748X Washer 25/32 x 1-5/8 x 16 Ga.

8 12000029 Ring, Klip
10 175121 Draglink
11 10040600 Washer, Lock
12 73940800 Nut Hex Jam Toplock 1/2-20 Unf
13 136518 Spacer Bearing Axle Front
15 145212 Nut, Hex Flange Lock
17 180641 Shaft Assembly, Steering
26 126847X Bushing, Link, Drag
28 19131416 Washer 13/32 x 7/8 x 16 Ga.
29 17000612 Screw 3/8-16 x 3/4
30 76020412 Pin Cotter
32 130465 Rod, Tie
36 155099 Bushing, Steering
37 152927 Screw
38 159946X428 Insert, Steering Wheel
39 19182411 Washer 9/16 x 1-1/2 11 Ga.
40 73540600 Nut Crownlock 3/8-24
41 159945 Adaptor, Steering Wheel
42 145054X428 Boot, Steering Shaft
43 121749X Washer 25/32 x 1-1/4 x 16 Ga.
44 180640 Extension Shaft Steering
46 121232X Cap, Spindle
51 73540400 Nut Crownlock 1/4-28
54 71130420 Bolt Hex 1/4-28 UNF x 1-1/4 Gr. 8
65 160367 Spacer Brace Axle
67 72110618 Bolt RDHD Sqnk 3/8-16 x 2-1/4
68 169827 Axle, Brace
71 175146 Steering Asm.
82 169835 Bracket Susp. Chassis Front
87 173966 Washer Flat
88 175118 Bolt Shoulder 7/16-20 Unc
91 175553 Clip Steering
95 188967 Washer Hardened

CO18H42STA (2004) Page 22 of 23
Wheels & Tires

CO18H42STA (2004) Page 23 of 23
Wheels & Tires

Ref # Part Number Qty Description

1 59192 Cap Value Tire

2 65139 Stem Value

3 106222X Tire F Ts 15 x 6 0 - 6 Service

4 59904 Tube Inner Front #35060

5 106732X421 Rim Asm 6" front Service

6 278H Fitting Grease

7 9040H Bearing Flange

8 106108X421 Rim Asm 8" rear Service

9 122082X Tire R Ts 20 x 10-8 Service
10 7152J Tube Rear 9 5 x 8 Service
11 104757X428 Cap Axle Blk 1 50 x 1 00

144334 Sealant, Tire (10 oz. tube)