
ROTARY LAWN MOWER - - MODEL NUMBER PR55R21AA
2

ROTARY LAWN MOWER - - MODEL NUMBER PR55R21AA
KEY PART
NO. NO. DESCRIPTION
1 182724 Handle, Upper, with Grip
2 161105X479 Handle, Lower
3 182748 Grip, Foam
4 179585 Guide, Rope, Side
5 132004 Nut, Hex Lockwasher 1/4-20
6 66426 Wire, Tie
7 131959 Bolt, Handle 5/16-18 x 2-5/8
8 170176 Knob, Handle
9 186089 Bail, WIre
10 161551 Bolt, Sq. Neck
11 73990500 Nut, Hex Lockwasher Ins. 5/16-18 UNC
12 51793 Cotter, Hairpin
13 172300 Throttle Control
14 144929 Screw
3
16 162085 Kit, Door Rear
17 179885 Seal, Door
18 182779 Plug, Mulcher
19 181763 Kit, Housing
20 181021X479 Handle, Bracket Asm. Left
21 181020X479 Handle, Bracket Asm. Right
22 150078 Screw, Hex Wshd
23 163183 Bolt, Hex Head 5/16-18 x 5/8
24 63124 Nut, Hex Lock Wshr 5/16-18
25 161333 Baffl e, Side
26 163409 Screw 12 x 5/8
27 161550 Skirt
28 88652 Screw, Hinge 1/4-20 x 1.25
29 182903 Cable, MZR
31 175064 Blade, 21”
34 851084 Bolt, Hex Head
37 150406 Bolt, Engine
38 - - - Engine, Honda, Model Number GCV-160
(Order parts from Engine manufacturer)
39 182116 Grass Catcher Bag
KEY PART
NO. NO. DESCRIPTION
40 180026 Grass Catcher Frame
41 107339X Danger Decal
57 179783X004 Bracket Assembly
58 57808 Screw
59 166042 V-Groove Pulley
60 166050 Idler Arm Spacer
61 145212 Flange Nut
62 155552 Locknut
63 179719X004 Idler Arm
64 166043 Idler Pulley
65 160829 Shoulder Bolt
66 183058 Door Assembly
67 169699 Multi Cut Guard
68 88349 Nut
73 182003 Clip
76 850733X004 Bracket, Upstop
77 750634 Screw
84 54583 Screw
85 87677 Key
86 84596 Pulley
87 851074 Washer
88 850263 Washer, Lock
89 851514 Blade Adapter
90 182002 Debris Shield
91 182227 Bolt
92 182001 Belt Keeper
93 182228 Nut, Hex
- - 162300 Warning Decal (Not Shown)
- - 172787 Operator’s Manual, English
- - 172788 Operator’s Manual, French
- - 186071 Repair Parts Manual, English / French
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm

ROTARY LAWN MOWER - - MODEL NUMBER PR55R21AA
4

ROTARY LAWN MOWER - - MODEL NUMBER PR55R21AA
KEY PART
NO. NO. DESCRIPTION
1 181069 EZ Walk Drive Control Assembly
2 180612 Cable, Drive
3 54583 Screw
5 161537 Cover Drive
6 750634 Screw Thdrol 10-25 x .50
7 182212 V-Belt
8 132010 Nut Lock Flanged 3/8-16 Zinc
9 184749 Pulley Halves
10 166021X004 Belt Keeper Bracket
11 17541011 Screw Hex Wash Head 10-24 X .668
12 181045 Spring, Return, Lever
13 180868 Transmission Assembly
5
14 145354 Pin Spring Thrust
15 57079 Washer Hardened
16 161584 Rod Connecting
17 161602 Spring Extension
18 160477X004 Spring Selector
19 170203 Knob Selector Spring
20 12000022 E-Ring 7/8
21 163365 Bearing Support
22 169911 Bearing Ball
23 161118X004 Retainer Drive Asm. Stmp.
24 57808 Screw Hex Head Tapping 1/4-20 x .75
25 180604 Pulley, Split, Upper
26 180603 Pulley, Split, Lower
27 52160 Washer
28 12000058 E-Ring 7/16
29 180504 Cover, Dust Wheel
30 57143 Washer, Wave
31 180607 Spring, Pulley Adjuster
32 180763 Wheel 9 x 2
KEY PART
NO. NO. DESCRIPTION
33 82923 Nut Hex Flange Lock
34 180660 Hubcap, Mag Platinum
35 160785 X004 Shaft Asm. Rear
36 160786X004 Shaft Asm. Front
37 161463 Retainer Front Shaft
38 163409 Screw 12 x 5/8
39 700279 Clip Retainer
40 172323 Wheel 8 x 2
41 181609 Connector, Lever/Pulley
42 83923 Nut, Hex Flange Lock 3/8-16
43 19572216 Washer
44 180601 Cover, Top,EZ Walk Drive Control
45 181047 Lever, EZ Walk Drive Control
46 180602 Cover, Bottom, EZ Walk Drive Control
47 181363X479 Plate, Trigger, EZ Walk Drive Control
48 181698 Screw, Phillips Head #10-5/8
49 175103 Pinion, Gear
50 175102 Retainer, Drive, RH
51 175098 Pawl
52 175267 Spring, Torsion
53 175104 Disc, Drive
54 175101 Seal, Friction
55 176412 Pinion/Pawl Assembly, RH
56 176413 Pinion/Pawl Assembly, LH
57 67725 Washer
58 175105 Retainer, Drive, LH
59 180606 Screw
60 52160 Washer
61 57079 Washer
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm