Ryobi RY40HPLM01 40V 21-inch Lawn Mower Parts and Repair Information

Figure A: Handle Assembly Components

Exploded view diagram illustrating the main handle assembly and associated components.

Key No.	Part No.	Description	Qty.
1	292708001	Wire Harness	1
2	687263001	Compression Spring	2
3	661189003	Screw (M4 x 18 mm)	2
4	678353001	E-Ring	2
5	694490001	Spring	2
6	660024061	Screw M4.0X1.8 PH TORX T20	27
7	281169023	Circuit Board Assembly	1
8	568977001	Silicone Buttons	1
9	553855001	Plastic Button Spacer	1
10	553853001	Accessory Light Tube	3
11	553852001	Speed Light Tube	1
12	553854001	Fuel Gauge Light Tube	1
13	657371002	Bail	2
14	760034042	Micro Switch	1
15	553840001	Bail Actuator	1
16	569139001	Rubber Boot	1
17	544302001	Cord Retainer	2
18	543971001	Bushing for Adjustment Knob	2
19	543972001	Adjustment Knob	2
20	674293001	Detent Pin	2
21	553551001	Start Button	1
22	694218001	Spring	1
23	553621001	Left Trigger	1
24	553622001	Right Trigger	1
25	311116003	Left & Right Handle Tube Assembly	2
26	553857001	Rear Handle Housing	1
27	205908013	Front Pod Housing w/ Label	1
28	553859001	Rear Pod Housing	1
29	553856001	Front Handle Housing	1
30	687250002	Torsion Spring	1
31	205908025	Front Cut Command Center Module (Inc. Key Nos. 2, 6-12, 21, and 27)	1

Figure B: Main Mower Body and Wheel Components

Exploded view diagram showing the main mower deck, body panels, wheels, and related components.

Key No.	Part No.	Description	Qty.
1	639116012	Front Axle Plate	2
2	553793001	Hole Plug	1
3	656307003	Front Axle	1
4	205278005	Deck w/ Labels	1
5	613427001	Motor Bushing	1
6	535080004	Fan Blade Adapter	1
7	526920003	Plastic, Blade Spacer Plate	1
8	639118002	Metal, Blade Spacer Plate	1
9	698355001	Side Cover Hinge Rod	1
10	682534001	Blade	1
11	205908014	Side Discharge Cover w/ Label	1
12	699080004	Cover Spring	1
13	541644001	Side Discharge Chute	1
14	657391002	Right Support Bar	1
15	657290002	Height Adjust Handle Bracket	1
16	657369002	Handle Bracket Support Plate	2
17	639116011	Rear Axle Plate	1
18	660024061	Screw	6
19	663156001	Screw M6 Torx T30	6
20	656415003	Right Handle Bracket	1
21	664004004	Screw 1/4"-15	28
22	205908015	Rear Door w/ Label	1
23	553472001	Ramp	1
24	553469001	Carry Handle Bottom	1
25	553420001	Carry Handle Top	1
26	661409008	Screw M6 Torx T30	2
27	657272004	Height Adjust Support Plate	1
28	970834002	Grass Catcher	1
29	698995001	Spring	1
30	678880001	E Ring	2
31	547099003	Trailing Shield	1
32	622754001	Rear Door Axle	1
33	657980003	Loop Clamp	1
34	659320005	Grass Bag Frame	1
35	656416003	Left Handle Bracket	1
36	663149001	Screw M8 Torx 45	2
37	554131001	Wheel Dust Cover	2
38	663155001	Screw M6 Torx T30	6
39	553589001	Hub Cap	4
40	553161001	Mulch Door Handle	1
41	553467001	Handle Adapter	1
42	683971002	Compression Spring	1
43	553468001	Door Adapter	1
44	553606001	Mulch Door	1
45	205908011	Top Cover w/ Label	1
46	657390002	Left Support Bar	1
48	318565007	10inch Wheel	2
49	679075001	Nut	1
50	318565005	8inch Wheel	2
51	513211004	Cord Clip	6
52	656460003	Axle Linkage Bar	1
53	662974001	Nut M8x1.25	4
54	678279004	Cotter Pin	2
55	205908023	Motor	1
56	687436001	Spring	1
57	904389005	Sandbag	1
58	281330039	Controller	1
59	790055001	Cable Tie	2
61	790076002	Cable Clip	1
62	569293001	Rubber Plug	2
65	317684004	Rear Axle Assembly	1
66	318325003	Power Head Assembly	1
67	318318004	Handle Assembly	1
68	678490001	External Ring	2

Figure C: Electrical Components and Battery Area

Exploded view diagram showing electrical components, battery housing, LED lights, and related parts.

Key No.	Part No.	Description	Qty.
1	292636001	Key Harness	1
2	292163007	Battery Harness (Black, Blue, Brown)	1
3	292163006	Battery Harness (Black, Orange, Purple)	1
4	660024061	Screw	11
5	553583001	LED Light Cover (Left)	1
6	553584001	LED Light Cover (Right)	1
7	553578001	LED Reflector	1
8	553577001	LED Cover	1
9	205908012	Battery Housing w/ Labels	1
10	693525001	E-Clip	1
11	623618001	Pin (5mm x 96.9mm)	1
12	311280001	Start Key Assembly	1
13	526912001	Key Connector Base	1
14	553579002	Hinge Cover	1
15	553422003	Battery Door Cover	1
16	318333009	Battery Cover	1
17	281660011	Headlight Circuitboard Assembly	1
18	661189003	Screw (M4 x 18mm)	3
19	513211004	Cord Clip	4

Figure D: Drive System Components

Exploded view diagram illustrating the drive system, transmission, gears, and control knobs.

Key No.	Part No.	Description	Qty.
1	660927002	Screw (M5 x16, Torx Hd.)	4
2	544086001	Ball Bearing Cup	2
3	682164001	Bearing	2
4	659708001	Connecting Plate	1
5	690698001	External Retaining Ring	4
6	622068004	Dowel Pin	2
7	699325001	Torsion Spring	1
8	678880001	E Ring	1
9	616363003	Left Drive Gear	1
10	616363002	Right Drive Gear	1
11	210667004	Transmission	1
12	657047005	Rear Axle	1
13	685899001	Height Adjustment Handle	1
14	552708001	Right Knob	1
15	552709001	Left Knob	1

Product Labels

The following labels are identified on the Ryobi RY40HPLM01 lawn mower:

Ryobi 40V HP-Standard Label
Data Label
Icon Label
Battery Wet Warning Label
Start Key Warning Label
Console LED Label
Mulch Door Label
QR Code Start Key Label
Self-Propelled Label
Starting Instructions Label
Danger Door Label
No Hands/Feet Danger Label
Battery Usage Temp Label
21in Label

Wiring Diagram

The wiring diagram illustrates the electrical connections between various components of the lawn mower. Key components shown include:

LED Headlight
Battery Foot Assembly (x2)
Handle Controller
Switch
Motor Controller
Wire Harness
Motor
Transmission
Key Base

Diagram shows electrical pathways connecting these components.

	Ryobi Outdoor Power Equipment Repair Sheets and Parts Lists Comprehensive repair sheets and detailed parts lists for Ryobi 40V Lawn Mower (RY40HPLM02), EXPAND-IT Trimmer Accessory (A54ST02), and 40V Brushless Power Head (RY40HPPH01), including diagrams and part numbers.
	RYOBI RY401018 40V 20-Inch Lawn Mower Operator's Manual Comprehensive operator's manual for the RYOBI RY401018 20-inch 40V lawn mower. Includes safety instructions, assembly, operation, maintenance, and troubleshooting guides for optimal performance and safe use.
	Ryobi RY401020 40 Volt 21-inch Lawn Mower Parts List and Repair Sheet Detailed parts list and repair information for the Ryobi RY401020 40 Volt 21-inch lawn mower, including component breakdowns, diagrams, and wiring schematics.
	Ryobi 40 Volt 21-inch Lawn Mower Repair Sheet and Parts List This document provides a detailed repair sheet and parts list for the Ryobi 40 Volt 21-inch Lawn Mower (Model RY401014US). It includes diagrams, part numbers, descriptions, and quantities for all components.
	Ryobi 54-inch Electric Zero Turn Mower Replacement Parts List Detailed replacement parts list for the Ryobi 54-inch Electric Zero Turn Mower, including model numbers RY48140 and RY48141. This document provides comprehensive diagrams and part numbers for various assemblies such as wheels, plastic components, control arms, deck, drive train, seat, electrical systems, and more.
	Ryobi 40V Lawn Mower RY401013 Repair Sheet and Parts List Comprehensive repair sheet, parts list, and wiring diagram for the Ryobi 40V Lawn Mower (Model RY401013). Provides detailed component breakdown, part numbers, quantities, and manufacturer contact information.
	Ryobi 40V HP Bike Handle Brush Cutter Repair Sheet and Parts List This document provides a repair sheet and parts list for the Ryobi 40V HP Bike Handle Brush Cutter (Model RY40HPBC01). It includes detailed diagrams, part numbers, descriptions, and quantities for all components, along with a wiring diagram.
	Ryobi 40V String Trimmer RY40204/RY40204VNM Repair Sheet and Parts List Detailed repair sheet and parts list for the Ryobi 40V String Trimmer, models RY40204 and RY40204VNM, including component identification and wiring diagram.