Complete Motor Assembly
This part is cataloged as the complete starter motor assembly rather than as an individual brush, terminal, cable, seal or mounting component.
Honda · Genuine OEM Part
Honda part 31200-MGZ-J81 is the starter motor assembly identified in Honda parts catalogs as MOTOR ASSY., STARTER. It belongs to the Starter Motor section and serves as the complete electric motor unit for the engine starting system.
Honda's exploded parts catalog lists the assembly separately from serviceable starter-motor components such as the carbon brush sets, brush holder, brush springs, terminal hardware, cables, O-rings and mounting bolts.
This part is cataloged as the complete starter motor assembly rather than as an individual brush, terminal, cable, seal or mounting component.
Honda's parts-fiche description is MOTOR ASSY., STARTER. That exact catalog wording distinguishes the assembly from the separately listed internal service components and related electrical hardware.
Honda's exploded Starter Motor catalog separates the motor assembly from its associated parts. The listed components include carbon brush sets, a brush holder, carbon brush springs, setting and terminal bolts, rings, an insulator, a terminal stopper, a washer, cables, harness clips, nut-washers, O-rings, a screw-washer and flange bolts. The assembly itself is identified by part number 31200-MGZ-J81.
| Honda Part Number | 31200-MGZ-J81 |
|---|---|
| Honda Catalog Description | STARTER MOTOR ASSY. |
| OEM Catalog Description | MOTOR ASSY., STARTER |
| Part Type | Starter Motor |
| Assembly | Starter Motor |
| Model | Type | Model Years |
|---|---|---|
| CB500X | Motorcycle | 2013–2020 |
| CB500XA | Motorcycle | 2013–2023 |
Model applications as listed in Honda's dealer parts catalog for part number 31200-MGZ-J81.
Verify the Honda OEM part number for your specific model before ordering.

Compatible motorcycles, ATVs & side-by-sides
Verify your vehicle's model, year and specific configuration before ordering.