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
TRU22004Y
In stock · ships from Knoxville
This is a Truck-Lite 22 Series incandescent side turn signal light kit with a yellow rectangular lens.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 3 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Mounts on vehicle surface or with an L-bracket (bracket sold separately). Meets FMVSS 108 and SAE J2039 standards for side turn and marker functions.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 4 of 4.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It serves as both a side marker and a turn signal, improving visibility for lane changes and turns on heavy-duty trucks and trailers. You would replace it when the lens is cracked, the sealed bulb fails, or the light no longer meets DOT requirements. The kit includes the light assembly with gasket and a 3-wire pigtail with a PL-3 connector and stripped/ring terminals for easy wiring.
Part Number: TRU22004Y
LAMP, MDL 22 S/D TURN
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting