Replacement for 34-20120D0-00 WHELEN ENGINEERING Halogen - MR11 Shape GZ4 Base 35W 12V

When the lamp in your emergency vehicle lightbar, beacon, and warning signal assembly reaches end of life, this compatible replacement for the 34-20120D0-00 by WHELEN ENGINEERING gets you back up and running. It matches the original at 35W, 12V, MR11 form factor with a GZ4 bi-pin base for a direct fit.

This lamp restores proper beam alignment and light output to the vehicle lighting assembly, supporting safe visibility in low-light, rain, fog, and nighttime driving conditions. Its filament and capsule are designed to handle the vibration and thermal cycling of an automotive environment. It provides the light color and intensity drivers depend on for clear road illumination.

Key Features & Benefits

• GZ4 bi-pin base provides reliable electrical contact and stable operation.
• Standard MR11 form factor fits a wide range of compatible fixtures.
• Operates at 35W, 12V to match standard low-voltage circuits.

Product Specifications

• Wattage: 35W
• Voltage: 12V
• Base Type: GZ4
• Bulb Shape: MR11
• Condition: Brand New

Common Applications

This halogen lamp is commonly used in:

• Vehicle headlamp assemblies
• Fog light and cornering light fixtures
• Turn signal and parking light housings
• Motorcycle and powersport headlamps
• Fleet and commercial truck lighting

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.