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Truck-Lite · Hardware & Fasteners
TRU40700
In stock · ships from Knoxville
This is a black PVC open-back grommet designed to mount a standard 4-inch round sealed lamp (stop/tail/turn) into a 4.5-inch diameter hole.
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Verified fitment for 3 applications
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All confirmed applications for this part number.
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This grommet is used across many truck and trailer brands; specific vehicle fitment is not needed because the lamp is standard.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 8 of 8.
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It provides vibration dampening to protect the bulb and extend lamp life. Commonly used on heavy-duty trucks, trailers, and commercial vehicles. Replace it if the grommet becomes brittle, cracked, or no longer holds the light securely.
Part Number: TRU40700
LIGHT GROMMET, 4 RND 571.GR40
Unit: ea
Dealer: Knox Trailers
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