Starter Clutch Gear 4-Stroke GY6 49cc 50cc 139QMB Scooter Moped Kart ATV

Product Overview

This aftermarket replacement starter clutch gear is intended for GY6 49cc and 50cc 139QMB scooter, moped, kart, and ATV applications. A starter clutch gear engages the starter motor drive so it can turn the engine during starting, then disengages once the engine runs. It is supplied as an aftermarket replacement part for the corresponding component in the listed applications.

Key Features & Performance

• Serves as the starter clutch gear for the listed GY6 49cc and 50cc 139QMB applications
• Works with the starter system to transfer turning effort from the starter motor to the engine during starting
• Suited to replacement when the existing starter clutch gear is worn or no longer engages properly
• Intended for 4-stroke GY6 scooter, moped, kart, and ATV applications as listed

Fitment & Compatibility

• for GY6 49cc applications
• for GY6 50cc applications
• for 139QMB applications
• for 4-stroke scooter, moped, kart, and ATV use as listed

Common Uses

• Replacing a worn or damaged starter clutch gear
• Servicing the starter system on the listed GY6 49cc, 50cc, and 139QMB applications
• Restoring normal starter drive function after the existing gear no longer engages correctly

Technical Specifications

• Product Type: Starter Clutch Gear
• Engine Application(s): GY6 49cc, GY6 50cc, 139QMB
• General Application: 4-stroke scooter, moped, kart, and ATV use as listed

Frequently Asked Questions

Q: What does a starter clutch gear do? A: It transfers turning effort from the starter motor to the engine during starting and disengages once the engine is running.

Q: How should fitment be verified? A: Compare the complete existing part number and the complete engine or model designation, such as GY6 49cc, GY6 50cc, or 139QMB, with the information provided before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.