Freightliner Condor Turn Signal Bulb Size

The Freightliner Condor front turn signal bulb uses a 1157 size bulb for this vehicle model. The replacement chart covers 2001 to 2007 production years with corresponding bulb size specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Turn Signal

Years	Bulb Size
2001-2007	1157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157

Other Locations

Additional Notes

The 1157 is the specified front turn signal bulb for the Freightliner Condor across the 2001-2007 model years.
The 1157 is a dual-filament bulb, meaning it contains two separate filaments within a single glass envelope. One filament operates at 21W and the other at 5W, allowing the bulb to serve both a high-intensity signaling function and a lower-intensity running light function simultaneously.
The 1157 uses a BAY15d bayonet base, which is an offset twin-pin mount. The two pins are positioned at different heights on the base, a design that prevents the bulb from being inserted in the wrong orientation and ensures each filament connects to the correct circuit.
The 1157 operates on a 12V electrical system and follows the ANSI standard recognized in both the United States and Canada.
Because the 1157 is a dual-filament type, substituting it with a single-filament bulb of similar wattage would result in the loss of one of its two electrical functions, making direct replacement with a non-dual-filament alternative incompatible for this application.