BA20D Headlight Bulb 35/35W - OEM 139QMB Scooters

Factory Clarity: OEM 35/35W Headlight Bulb - 

BA20D Style

Restore your nighttime visibility with the Genuine OEM Headlight Bulb. Specifically engineered as the factory-standard replacement for many 139QMB series scooters, this bulb delivers a crisp, reliable beam for safe urban commuting. Whether you are replacing a burnt-out filament or performing a seasonal safety check, this dual-filament bulb provides the precise 35/35W output required by your scooter's electrical system.

Technical Performance Features

• BA20D Base Style: Features the standard "Bosch-style" bayonet base for a secure, vibration-resistant fit in factory headlight housings.
• Dual-Filament Versatility: Integrated high and low beam filaments (35W/35W) allow for seamless switching between city and dark-road riding.
• OEM Precision: Manufactured to original factory specifications to ensure correct focal length and beam pattern without melting plastic lenses.

Comprehensive Fitment Guide

This bulb is the standard factory replacement for the Chicago Scooter Company lineup and many QMB139 powered vehicles:  CHECK to make sure base is BA20D Style

Technical Specifications

• Voltage: 12 Volt
• Wattage: 35W / 35W (High/Low)
• Base Type: BA20D
• Manufacturer Part Number (MPN): 3372040

Mechanic's Note: Headlight bulbs are often the first casualty of a failing voltage regulator. Installation Tip: Never touch the glass of the new bulb with your bare fingers; skin oils can cause "hot spots" that lead to premature bulb failure. Pro Tip: If your bulbs are constantly blowing, check your Voltage Regulator to ensure your system isn't overcharging!

SKU: 0900-4017 Original Parts For Scooters SKU 138-121-1PC
Vendor: Chicago Scooter Company

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