Brass Connector Male 5/8 x 3/8, 177.13B6810C

This brass male connector adapts 5/8in tubing to a 3/8in male pipe thread (MPT) fitting, cross-referenced as 177.13B6810C. It's used on air brake and pneumatic lines on heavy-duty trucks and trailers to connect push-to-connect tubing to a threaded port.

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.