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.

Grote · Hardware & Fasteners
GRT91890
In stock · ships from Knoxville
This is a heavy-duty black PVC grommet designed to securely mount a 2½-inch round lamp onto a truck or trailer body.
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.
Universal fit
Fits standard 2-1/2 inch round surface or flush mount lamps used as clearance/marker lights on heavy-duty trucks and trailers. Compatible with Grote Hi Count and SuperNova LED series lamps.
Part data verified against 5 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It allows the light to be installed either surface-mounted or flush-mounted, while cushioning against vibration and sealing out moisture to protect wiring. Over time, rubber grommets can crack or dry out, leading to loose lights and potential water damage; replacing with this exact-fit grommet restores a tight, professional installation.
Part Number: GRT91890
GROMMET 2.5 SURFACE MNT.
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more