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Knox Trailers · Trailer Parts
3-3550-031
In stock · ships from Knoxville
This is a rubber door gasket for semi-trailer doors, commonly used on dry vans and reefers.
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 has a D-shaped profile that compresses when the door is closed, creating a weathertight seal to keep out moisture, dust, and drafts. Over time the rubber can crack, become brittle, or lose its spring, leading to cargo damage from water intrusion, so it should be replaced when these signs appear.
Part Number: 3-3550-031
DOOR RUBBER UTTIL 10FT
Unit: ea
Dealer: Knox Trailers
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