Brass Connector Male 3/8 x 1/4, 177.13B686B,1868X6,S68PMT-6-4,PL13686B,017944, Np68-6-4

This brass male connector adapts 3/8in tubing to a 1/4in male pipe thread (MPT) fitting, cross-referenced as 177.13B686B, 1868X6, S68PMT-6-4, PL13686B, 017944, and NP68-6-4. It's a common DOT air brake fitting used to connect push-to-connect nylon tubing to a threaded port on heavy-duty trucks and trailers.

United Truck Parts keeps this fitting in stock in Pennsylvania for fast shipping along the I-78 corridor, serving fleets, owner-operators, and repair shops nationwide. If you're unsure this is the exact fitting you need, reach out with your old part number or a photo and we'll help you match it — financing is available for bulk orders.