Taillight Bulb (12V 21W/5W) for CSC Go., GY6 50cc (139QMB) Scooters

Taillight Bulb for CSC Go Scooters and GY6 50cc Models

This 12V taillight bulb is made for CSC Go scooters and GY6 50cc vehicles. It pairs a 21W brake filament with a 5W running filament, so it takes the place of the factory bulb. You can find more options among GY6 50cc scooter parts if other maintenance or repair items are needed. Keeping your scooter's lights working helps you ride safely in city traffic.

Replacement and Functionality

This bulb handles both the running light and the brake light on your scooter. Visibility matters most when riding in dim conditions, so the taillight should be working at all times. If the light looks faint or has stopped working, swapping this component is the next step.

Compatibility with Various Models

This bulb suits CSC Go scooters and a number of models built around the 139QMB engine. When the engine number contains "QM" or "FM" and the bulb uses a BAY15d base, the part should fit your scooter without trouble.

Specifications

• Voltage: 12 Volt
• Wattage: 21/5 Watt
• Base Style: BAY15d
• OEM Part Number: 138-37-10PCS, 138-37-1PC
• Fits: GY6 50cc (139QMB) and CSC Go Max scooters, tail and brake light (12V 21/5W BAY15d)

Fitment

Fits:

• GY6 50cc (139QMB)
• CSC Go Max (GO MAX LIGHTS ASSY)
• CSC Go (QMB139 LIGHTS ASSY)
• 139QMA, 1P39QMB, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD (listed as compatible when bulb specs match)

How to choose: Look for a BAY15d (1157-style) base: 15 mm diameter, two contacts, and two retaining pins set at different heights, rated 12V 21/5W.

Where it goes: part #8 on the lights assy diagram for the GY6 50cc (139QMB), CSC Go; part #8 on the lights assy diagram for the CSC Go Max.

Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Lights & Bulbs · Scooter Parts