Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Truck-Lite · Electrical & Lighting
TRU21080R
In stock · ships from Knoxville
This is a red LED marker/clearance light for heavy-duty trucks and trailers.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Universal fitment is based on standard 2x6 inch rectangular marker light dimensions and 2-screw mounting pattern. Specific vehicle fitment should be verified by measuring the existing light housing.
Part data verified against 3 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It uses a single LED diode and a reflectorized, diamond-pattern lens to make the vehicle visible from the side and front, which is required by federal safety regulations. The light is a sealed, maintenance-free unit that draws very little current, and it comes as a kit with a plug-and-play Fit 'N Forget M/C connector and a ring terminal for easy installation. You would replace this when the original lens is cracked, moisture gets inside, or the light fails during a DOT inspection.
Part Number: TRU21080R
LAMP LED M/C
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting