Brass Push-Lock Male Connector - 1/4" Tube x 1/8" NPT DOT Air Brake Fitting - Eaton 1868X4 Tectran PL13684A 177.13B684A

One weeping air fitting will bleed a truck's supply tank down overnight and leave you waiting on the compressor at 5 a.m. This Brass Push-Lock Connect (PLC) Male Connector from Automann joins 1/4 in DOT nylon air brake tubing to a 1/8 in male NPT port and seats by hand: cut the tube square, push it home, and the brass collet grips and seals it. It is DOT approved for heavy-duty air brake systems, which is exactly what a brake circuit needs instead of a hardware-store guess. 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 Lines: The Brass PLC Male Connector Advantage

The brass body and collet construction is why this fitting outlives the plated steel it usually replaces. Brass shrugs off the road salt, condensate and under-chassis moisture that corrode a steel fitting from the thread out, and it will not seize into an aluminum valve body. The push-to-connect design keeps the repair simple: there is no ferrule to lose and no sleeve to crush, so a line can be rebuilt on the shoulder with a tubing cutter and nothing else. Give the tube a firm pull once it bottoms out to confirm the collet has bitten.

With a 1/4 in tube end and a 1/8 in NPT male thread end, this is the small-port workhorse of truck and trailer air plumbing: gauge and pressure-switch lines, small control ports and accessory taps. It is nylon tube compatible, weighs 0.05 lbs and ships in a 1.15 x 0.65 x 0.65 in package, so a few spares live easily in the side box. Automann builds it to Fleet Standard specifications and backs it with a 1-Year FleetPro Warranty.

This connector is a direct replacement for highly searched industry numbers including Eaton 1868X4, Holland XB04247, Sloan S68PMT-4-2, Tectran PL13684A and Velvac 017940. While the line is open, replace any tubing that is chafed, kinked or heat-hardened.

Vehicle Fitment & Compatibility

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

• Make/Model: Universal - Class 8 tractors, commercial trailers and heavy-duty equipment
• System: Air brake plumbing on tractors and trailers
• Tube Size: 1/4 in DOT nylon air brake tubing
• Port Thread: 1/8 in NPT male
• Compliance: Meets FMVSS 571.106 / DOT requirements for brake circuits
• Component Group: Air Brake & Wheel / Air System Manifolds & Valves

Direct Replacement & Cross-Reference Numbers:

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

• Eaton Interchange: 1868X4
• Holland Interchange: XB04247
• Sloan Interchange: S68PMT-4-2
• Tectran Interchange: PL1368-4A, PL13684A
• Velvac Interchange: 017940
• Automann Distributor #: 177.13B684A

Technical Specifications

• Component Type: Push-Lock Connect (PLC) Male Connector, DOT air brake
• Tube End: 1/4 in
• Pipe Thread: 1/8 in NPT male
• Body: Brass body and collet
• Tube Compatibility: Nylon air brake tubing
• Compliance: DOT approved, FMVSS 571.106
• Condition: New
• Warranty: 1-Year FleetPro Warranty
• Weight: 0.05 lbs
• Package Dims: 1.15 x 0.65 x 0.65 in
• UPC: 889626032165
• Product Level: Fleet Standard Aftermarket
• Brand: Automann (Distributed by FleetPro Parts & Tires)