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Knox Trailers · Trailer Parts
2376-187-31X87
In stock · ships from Knoxville
This is a Whiting door operator (counterbalance) assembly used on roll-up trailer 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 uses a pair of torsion springs with .187-inch wire diameter and 31-inch coil length on an 87-inch shaft to balance the door's weight, making it easier to open and hold safely. Operators are replaced when the springs weaken, break, or the shaft becomes damaged, restoring smooth door operation and preventing drop hazards.
Part Number: 2376-187-31X87
OPERATOR
Unit: ea
Dealer: Knox Trailers
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