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Whiting Door Manufacturing Corp. · Trailer Parts
7176-225-31X90
In stock · ships from Knoxville
This is a heavy-duty dual-spring operator assembly for a roll-up trailer door, built by Whiting Door.
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Exact trailer makes/models not verified beyond US Foods fleet usage; shaft length must match 90".
Part data verified against 3 catalog sources
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It uses a pair of .225" wire diameter springs, each 31" long, mounted on a 90" shaft to counterbalance the door's weight. The operator is replaced when springs lose tension or break—common on trucks in dry van or refrigerated fleets like US Foods.
Part Number: 7176-225-31X90
OPERATOR, US FOODS
Unit: ea
Dealer: Knox Trailers
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