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.
Pro-Par · Electrical & Lighting
PROLED40-18A
In stock · ships from Knoxville
The PROLED40-18A is a 4-inch round amber LED lamp designed as a front park/turn signal 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
Verify connector type (female PL-3) and 12V system. Primarily used as a front park/turn lamp; not intended for stop/tail/turn functions.
Part data verified against 2 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It uses 18 diodes for bright, instant illumination while cutting electrical load by about 85% compared to incandescent bulbs. The light has a durable polycarbonate lens and housing, and a fully sealed circuit board that resists corrosion and moisture. It is a direct replacement or upgrade for standard 4-inch round grommet mount turn signal lights, typically swapped in when the old light fails, cracks, or when switching to LED for better durability and visibility.
Part Number: PROLED40-18A
4 ROUND LED LAMP
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting
