Brass Push-Lock Male Elbow - 3/8" Tube x 1/4" NPT 90 Degree DOT Air Brake Fitting - Replaces Eaton 1869X6 177.13B156B

Keep the air where it belongs with this DOT brass push-to-connect male elbow distributed by FleetPro Parts & Tires. It turns a 3/8 in air line ninety degrees into a 1/4 in NPT male port, so nylon tubing clears a frame rail, crossmember or valve body without kinking. A cracked collet or a hairline weep at a brake fitting bleeds the system down overnight, keeps the compressor cycling, and will hang an out-of-service tag on the truck at the first roadside inspection. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, diesel repair shops, and owner-operators nationwide.

Leak-Free Air Circuits: The Brass PLC Male Elbow Advantage

This fitting is built to FMVSS 571.106 / DOT requirements for brake circuits — the specification that matters when an inspector puts a light on your plumbing. The brass body and collet shrug off the road salt, moisture and constant vibration of an exposed chassis run, and the 90 degree geometry gives the tubing a supported bend instead of forcing it into a radius that chafes through against a bracket.

Push-to-connect assembly means no wrench on the tube side. Cut the nylon line square, push it home, and the collet grips and seals in one motion — a repair a driver can finish on the shoulder with nothing but a tube cutter. At 0.1 lbs in a 1.5 x 1.25 x 0.75 in package, it costs nothing to keep a few spares in the truck.

At FleetPro Parts & Tires, we know an air leak is never a small job when it strands the truck. This Automann fitting is a direct replacement for highly searched industry numbers including Eaton 1869X6 and Parker 169PMTNS64. Every unit ships new and is backed by the 1-Year FleetPro Warranty.

Vehicle Fitment & Compatibility

This DOT brass air fitting uses a universal design intended for the following commercial applications:

• Make/Model: Universal - heavy-duty tractors and commercial trailers
• System: Air brake plumbing and brake circuit lines
• Connection: 3/8 in push-to-connect tube end to 1/4 in NPT male port
• Compliance: Meets FMVSS 571.106 / DOT requirements for brake circuits

Direct Replacement & Cross-Reference Numbers:

This Automann brass fitting serves as a direct replacement for the following part numbers:

• Eaton Interchange: 1869X6
• Parker Interchange: 169PMTNS64
• Automann Distributor #: 177.13B156B

Technical Specifications

• Component Type: Push-to-Connect (PLC) Male Elbow, DOT Air Brake
• Tube End: 3/8 in
• Pipe Thread: 1/4 in NPT Male
• Angle: 90 degree
• Body: Brass body and collet
• Compliance: FMVSS 571.106 / DOT
• Condition: New
• Warranty: 1-Year FleetPro Warranty
• Weight: 0.1 lbs
• Package Dims: 1.5 x 1.25 x 0.75 in
• Product Level: Fleet Standard Aftermarket
• Brand: Automann (Distributed by FleetPro Parts & Tires)