GY6 50cc (139QMB) 4-Stroke Scooter AC CDI
ITEM# TT-26767
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Description
Replacement AC CDI for GY6 50cc Four-Stroke Scooters
This AC CDI ignition unit is meant to replace the original on scooters running the 139QMB/QMB139 (GY50) 50cc four-stroke engine. It suits a range of Chinese scooter models built around this engine. If you want to get your scooter's ignition working properly again, you can browse our GY6 50cc scooter parts for related components.
AC CDI Overview
This module runs on an AC power supply, so it fits scooters that call for this style of CDI. The unit has a black housing and an off-white connector, which help with spotting it and fitting it correctly. Before you buy, confirm that your current unit is also AC CDI and that its connector shape and pin layout match.
Understanding Compatibility
This AC CDI is a drop-in replacement for several Chinese scooter models that use the 139QMB/QMB139 engine family. Check your scooter's ignition type and connector setup against the details listed here to make sure it will fit.
Specifications
- Ignition Type: AC CDI
- Engine Family: 139QMB/QMB139 (GY50), 50cc four-stroke
- Connector: Verify shape and pinout against your original unit
Fitment
Fits:
- GY6 50cc (139QMB / QMB139, GY50) 4-stroke scooters with an AC CDI
How to choose: Locate the engine code on your engine and confirm it reads 139QMB or QMB139 (GY50), and that your existing CDI is the AC type. Place your old unit's plug next to this off-white connector and compare the shape and pin arrangement.
Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter CDI & Ignition · Scooter Parts
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