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Post Onsite · Hardware & Fasteners
920118
In stock · ships from Knoxville
This is a replacement rubber O-ring seal for Betts Lighting marker and clearance lights.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It fits into the groove between the lens and housing to create a watertight barrier, protecting the bulb and wiring from moisture, road spray, and dirt. Over time, the original O-ring can dry out, crack, or lose elasticity, leading to fogging, corrosion, or premature bulb failure. Replacing it during a lens repair or bulb change helps maintain a reliable, DOT-compliant seal.
Part Number: 920118
O-RING, LIGHTS 50,56,60,100 SERIES
Unit: ea
Dealer: Post Onsite
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