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Automann · Hardware & Fasteners
177.9197BHBD92
In stock · ships from Knoxville
This is a bulkhead frame fitting used to pass air or fluid lines through a truck frame rail or panel.
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Universal fit
Common air brake frame fitting for heavy-duty trucks and trailers. Replaces Automann 177.4001, Velvac 035021, Euclid E8616, and other interchangeable numbers.
Part data verified against 1 catalog sources
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It has 1/2" NPT male threads on both outer ends, a 1/4" NPT female connection on one inner end, and a 1"-14 SAE straight thread in the middle for securing the fitting to a bulkhead. Typically replaced when it becomes corroded, stripped, or develops air leaks due to vibration and road debris.
Part Number: 177.9197BHBD92
Bulkhead Coupling 2-7/8in
Dealer: Knox Trailers
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