Honda TRX90 / TRX90X Starter Clutch, Chain & Sprocket Kit
Aftermarket starter-drive repair kit for compatible Honda TRX90 / TRX90X FourTrax and Sportrax 90 starting-gear assemblies.
Honda Parts-Catalogue Match
Honda TRX90X starting-gear fiches use the same starter-system component family as the Cub electric-start assembly, including 28101-GB4-701 starter chain, 28102-GB4-700 guide, 28103-GB4-700 protector, 28110-GB4-700 41T starter sprocket and 28120-179-710 starting-clutch outer.
These references appear in TRX90/TRX90X parts catalogues from early electric-start models through current 2020s production, but the buyer should still compare every component with the original assembly before fitting this unbranded kit.
Kit Details
- Starter clutch / one-way drive
- 41T starter sprocket
- Starter chain
- Starter-chain guides / protectors
- SKU: 01304-ENG
Honda OE / Manufacturer Cross-References
This is an unbranded aftermarket kit. The numbers below are genuine Honda component references used to identify the starter-drive system; they are not claimed to be the manufacturer MPN of this exact aftermarket kit.
- 28101-GB4-701 / 28101-GB4-702 – Honda starting chain, 25H / 62-link family
- 28102-GB4-700 – Honda starter-chain guide
- 28103-GB4-700 – Honda starter-chain protector / second guide
- 28110-GB4-700 – Honda complete starting sprocket, 41 tooth
- 28117-179-710 – Honda starting-sprocket setting plate
- 28120-179-710 – Honda outer starting clutch
- 28125-179-710 – Honda starting-clutch roller spring
- 28126-253-030 – Honda starting-clutch roller spring cap
- 28128-179-710 – Honda starting-clutch side plate
- 91101-179-710 – Honda 10 x 10 starter-clutch roller
- 91102-179-711 – Honda 5 x 11.8 roller
Important Fitment Checks
- This kit is for electric-start engines using the matching chain-driven starter-clutch layout.
- Compare the 41T starter sprocket, starter chain, chain guides and clutch assembly with the photographs before ordering.
- Confirm the starter chain route, crankcase layout and mounting points match your engine.
- Do not order solely from engine capacity: Honda and Chinese horizontal engines were produced with several different starter systems.
- Kick-start-only engines will not accept this kit unless the engine already has the corresponding electric-start crankcase and starter-drive components.
Google Search Terms
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Delivery & Returns
- Free UK delivery with an estimated 2–3 working-day service
- 30-day returns, subject to the item being returned in its original condition