Starter Motor Clutch and Gear Kit for 2006-2014 Honda TRX450ER Electric Start
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- 2006 Honda TRX450ER
- 2007 Honda TRX450ER
- 2008 Honda TRX450ER
- 2009 Honda TRX450ER
- 2011 Honda TRX450ER
- 2012 Honda TRX450ER
- 2013 Honda TRX450ER
- 2014 Honda TRX450ER
Product Overview
When the starter spins without turning the engine, grinds, slips, or the electric-start system has damaged gears, replacing only the motor may leave the real fault in place. This coordinated kit covers the major starter-drive parts behind the side cover for a more complete repair.
It is for the TRX450ER electric-start model, not a kick-start-only TRX450R setup. Low battery voltage, cable resistance, engine kickback, valve adjustment, decompressor trouble, or internal engine damage should be corrected before new starter parts are installed.
Key Features & Performance
- Starter motor plus one-way clutch and mating drive gears
- Includes side-cover gaskets for reassembly
- Targets slipping, grinding, and no-crank starter-drive failures
- Keeps the major electric-start components together for one teardown
- Aftermarket engine-starting repair package
Replaces Part Numbers
- 28100-HP1-601
- 28110-MEY-670
- 28115-MEY-670
- 28120-HP1-602
- 28125-MEY-671
- 28127-MS2-612
- 11394-HP1-600
- 11395-HP1-600
Common Uses
- Repairing a starter motor that has failed electrically
- Replacing a one-way clutch that slips or freewheels
- Correcting chipped or worn starter reduction gears
- Completing an electric-start repair during side-cover service
Technical Specifications
- Product Type: Electric starter and starter-drive gear kit
- Model: Honda TRX450ER
- Included: Starter, starter clutch, driven gear, reduction gear, and two gaskets
- Starting System: Electric start
- Replacement Type: Aftermarket
Installation & Fitment
- Load-test the battery and inspect cables, relay, grounds, and charging system
- Confirm the machine is a TRX450ER and compare all gears and part references
- Inspect flywheel, crankcase, shafts, bushings, and debris from previous gear damage
- Follow Honda timing, puller, torque, and one-way-clutch orientation procedures
- Use fresh oil as required and verify smooth cranking before reinstalling bodywork
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model names and year ranges are a starting point. Match the original reference number, configuration, connections, mounting points, and product-specific details before ordering.
Frequently Asked Questions
Q: Why does the starter spin but not turn the engine? A: A slipping one-way starter clutch or damaged drive gear can disconnect the motor from the crankshaft.
Q: Does this fit the kick-start TRX450R? A: No. It is listed for the electric-start TRX450ER.
Q: Can a weak battery damage the starter system? A: Low voltage can cause slow engagement, relay chatter, heat, and gear stress, so the battery and cables must be tested.
Part Summary
keywords: Honda TRX450ER starter kit, TRX450ER starter clutch replacement, 2006 Honda electric start gear set, 2014 TRX450ER starter motor, ATV starter spins but not engine, 28115-MEY-670 clutch, 28120-HP1-602 gear, aftermarket Honda starter repair
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.