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Knox Trailers · Trailer Parts
1979-19
In stock · ships from Knoxville
This is a plastic bushing used on the back half of the lock rod assembly in semi-trailer swing doors.
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 acts as a bearing surface that allows the lock rod to rotate smoothly while keeping it aligned, reducing friction and preventing metal-on-metal wear. When the bushing cracks, wears out, or becomes brittle, the door lock rod may feel loose or bind, so it is replaced during routine trailer door maintenance.
Part Number: 1979-19
LOCK ROD BACKING PLATE
Unit: ea
Dealer: Knox Trailers
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