12V 10W BA15S single-contact bayonet turn signal bulb showing clear glass envelope and silver bayonet base for GY6 QMB139 scooters 12V 10W BA15S single-contact bayonet turn signal bulb showing clear glass envelope and silver bayonet base for GY6 QMB139 scooters
12V 10W BA15S single-contact bayonet turn signal bulb showing clear glass envelope and silver bayonet base for GY6 QMB139 scooters

Chicago Scooter Company

Universal Parts 12V 10W BA15S Turn Signal Bulb | GY6 QMB139

SKU 0900-4018
$2.00
Shipping calculated at checkout.
Description

Replace a burnt-out turn signal bulb quickly and affordably with this 12V 10W BA15S Single-Contact Bayonet Bulb. This is the standard rear turn signal bulb used across a wide range of Chinese-platform 50cc scooters, including the CSC go. and the broad GY6 / QMB139 engine family. The BA15S bayonet base is the most common single-filament bulb format on these scooters — a direct plug-in replacement with no wiring modifications required.

Key Features

  • BA15S Bayonet Base: Single-contact bayonet mount — the standard format for turn signals on GY6 and QMB139-based Chinese scooters.
  • 12V 10W Rating: Correct wattage for OEM turn signal circuits on 50cc scooter platforms.
  • Clear Glass Envelope: Works with amber or clear turn signal lenses.
  • Direct OEM Replacement: Plug-in fit for listed models with no modifications needed.

Compatible Applications

Fits scooters using the BA15S single-contact bayonet turn signal socket, including:

  • Chicago Scooter Company (CSC) go. and go. MAX
  • CSC Bella Classic 50
  • GY6 50cc scooter platform (139QMB / QMB139 engine family)
  • Many Chinese-brand 50cc scooters from TaoTao, Peace Sports, Jonway, Icebear, Bintelli, BMS, Fly Scooter, SSR Motorsports, SunL, Wolf, ZNEN, and others

Technical Specifications

  • Voltage: 12V
  • Wattage: 10W
  • Base Type: BA15S (single-contact bayonet)
  • Filaments: Single
  • Application: Rear turn signal
  • Manufacturer: Chicago Scooter Company / OEM | SKU: 148-226
Fitment Note: Confirm your turn signal socket is BA15S (single pin, single contact) before ordering. Some scooters use BA15D (dual-contact) or other base types. When in doubt, remove your existing bulb and match the base style.

 

California Prop 65 Warning: www.p65warnings.ca.gov
Product Diagrams
Features
  • 12V 10W BA15S Single-Contact Bayonet Base
  • Direct OEM Replacement for GY6 and QMB139 Scooters
  • Clear Glass Envelope Works with Amber or Clear Lenses
  • Plug-In Fit No Wiring Modifications Required
  • Fits CSC go. go. MAX Bella Classic 50 and Chinese 50cc Platform
Specifications

Voltage: 12V | Wattage: 10W | Base: BA15S single-contact bayonet | Filaments: Single | Application: Rear turn signal | SKU: 148-226
Model Fitments

CSC go., CSC go. MAX, CSC Bella Classic 50; GY6 50cc / QMB139-based Chinese scooters from TaoTao, Peace Sports, Jonway, Icebear, Bintelli, BMS, Wolf, ZNEN, SSR Motorsports, SunL, and others with BA15S turn signal sockets
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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