Honda MSX125 Grom 2013-2022 Starter Motor 31200-KPW-901
Brand new aftermarket starter motor assembly for Honda MSX125 / Grom 125 2013-2022, replacing Honda starter reference 31200-KPW-901.
The unit is a compact cylindrical electric starter motor with a metal motor body, alloy-style end housing, two-bolt mounting flange, threaded electrical terminal and exposed 9-tooth starter pinion. It is supplied as a complete assembled replacement starter motor ready to install in the matching Honda engine.
Direct Fitment
- Honda MSX125 / Grom 125 - 2013-2022
- Honda starter reference: 31200-KPW-901
Honda parts catalogues and direct aftermarket application data identify 31200-KPW-901 for MSX125 / Grom 125 applications.
Product Specification
- Product: Electric starter motor assembly
- Starter drive: 9 tooth
- Rotation: Left / counter-clockwise reference rotation
- Mounting: Two-bolt flange
- Electrical connection: Threaded starter terminal
- OEM reference weight: approximately 893 g
- Shopify product weight: 900 g
- Reference packed size: approximately 18 x 10 x 8 cm
- Reference packed weight: approximately 0.90 kg
- Condition: Brand new
- Type: Aftermarket replacement
- SKU: 00210-EIP
Honda OE / OEM Reference Numbers
- 31200-KPW-901
- 31200KPW901
Related / Interchange References
- 31200-KPH-900
- 31200-KPH-901
- 31200KPH900
- 31200KPH901
Associated Honda Starter-Motor Service References
- 31201-KPW-901 / 31201-KVS-J01 - starter brush terminal set family
- 31205-KPW-901 - starter setting bolt
- 31206-KPW-901 - brush holder
- 31207-MBE-008 - starter motor ring
- 91309-425-003 / 91312-MG7-003 - 24.4 x 3.1 mm O-ring family
- 91320-MB0-000 - 4 x 2 mm O-ring
- 95701-06025-00 - M6 x 25 flange mounting bolt family
Fitment Check
Before ordering, compare the original starter motor part number, 9-tooth drive pinion, mounting flange, electrical terminal position and overall housing shape. Honda used different starter motors on some model generations and markets, so the OE reference is the best identification check.
Common Starter Motor Faults
- Starter motor does not turn when the starter button is pressed
- Slow or intermittent cranking with a known-good battery
- Worn internal brushes or commutator
- Damaged starter pinion
- Seized or noisy starter motor bearings
- Corroded or damaged starter electrical terminal
Installation
Disconnect the battery before replacement. Inspect the starter cable, battery terminals, relay/solenoid, earth connections, mounting O-ring and starter-drive components before fitting the new motor. Replace damaged seals and tighten the mounting hardware to the vehicle manufacturer's specification.
Search Terms
Honda starter motor, 31200-KPW-901, 31200KPW901, 9 tooth starter motor, Honda 125 starter, motorcycle starter motor, electric start motor, Mitsuba starter replacement, Honda starter motor assembly.
Condition: Brand new aftermarket replacement. OE numbers are supplied for compatibility identification only; this item is not represented as a genuine Honda component.