Brass Push-to-Connect (PLC) Male Connector - 1/2" Tube x 1/2" NPT DOT Air Brake Fitting 177.13B688D

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SKU: 177.13B688D
Regular price $6.78
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Fitment

Fits these trucks

Universal - tractors and trailers with air brake systemsAir brake plumbing / brake circuits1/2 in DOT air brake tubing into a 1/2 in female NPT port
Always confirm your year, make & model before ordering.
Overview

Put the big line back in service with this Brass Push-to-Connect (PLC) Male Connector distributed by FleetPro Parts & Tires. It runs 1/2 in DOT air brake tubing straight into a 1/2 in male NPT port โ€” a full-size, straight-through pairing for the supply-side plumbing where restriction and leakage cost you the most air. When a fitting this size weeps, the compressor never gets ahead of it: pressure sags, the low-air warning nags, and an audible leak on a brake circuit is exactly what takes a truck out of service at the scale. 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.

Full-Flow Air Delivery: The 1/2 in Brass PLC Connector Advantage

The brass body and collet do the heavy lifting here. Brass will not scale and seize the way plated steel does after a few winters of road salt and washdowns, and a brass collet will not go brittle and release the tube like the plastic collets found on economy fittings. The 1/2 in tube end accepts a squarely cut tube with a firm push and holds it against system pressure; the 1/2 in male NPT thread seats into any matching female NPT port in the air brake plumbing. Nothing to flare, nothing to torque against a sleeve, and the same seal on the shoulder as on the shop bench.

This is a DOT-approved air brake fitting that meets FMVSS 571.106 requirements for brake circuits, so it belongs in the line and not just in the toolbox. It carries a listed 0.12 lbs and packs at 1.5 x 1.15 x 1.15 in.

Sizing on push-to-connect fittings is unforgiving, and the 1/2 in tube to 1/2 in NPT pairing is the one that gets confused with the step-down sizes most often. Order by the Automann distributor number 177.13B688D to get the straight 1/2 in by 1/2 in combination. It ships new and is backed by our 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 โ€” tractors and trailers with air brake systems
  • System: Air brake plumbing / brake circuits
  • Tube Size: 1/2 in push-to-connect tube end
  • Port Thread: 1/2 in male NPT
  • Standards: Meets FMVSS 571.106 / DOT requirements for brake circuits

Direct Replacement & Cross-Reference Numbers:

Order this Automann fitting by its distributor number:

  • Automann Distributor #: 177.13B688D

Technical Specifications

  • Component Type: Push-to-Connect (PLC) Male Connector, DOT Air Brake
  • Tube End: 1/2 in
  • Pipe Thread: 1/2 in NPT Male
  • Body: Brass body and collet
  • Compliance: FMVSS 571.106 / DOT
  • Condition: New
  • Warranty: 1-Year FleetPro Warranty
  • Weight: 0.12 lbs
  • Package Dims: 1.5 x 1.15 x 1.15 in
  • Product Level: Fleet Standard Aftermarket
  • Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
  • Straight 1/2 in by 1/2 in Sizing: Full-size tube end matched to a full-size male NPT port, with no step-down to restrict the supply side.
  • Tool-Free Push-to-Connect: The tube pushes straight in and locks, so a leaking joint is repaired with a tube cutter instead of a flaring kit.
  • All-Brass Body and Collet: Brass resists the road salt, moisture and washdown chemistry that seize plated-steel fittings and crack plastic collets.
  • DOT Air Brake Rated: Meets FMVSS 571.106 and DOT requirements for brake circuits, so the repair survives an inspection.
  • New and Warranty Backed: Ships new from our Hanover Park, Illinois warehouse with a 1-Year FleetPro Warranty.
Specifications
Component Type
Push-to-Connect (PLC) Male Connector, DOT Air Brake
Tube End
1/2 in
Pipe Thread
1/2 in NPT Male
Body
Brass body and collet
Compliance
FMVSS 571.106 / DOT
Condition
New
Warranty
1-Year FleetPro Warranty
Weight
0.12 lbs
Package Dims
1.5 x 1.15 x 1.15 in
UPC
889626032127
Product Level
Fleet Standard Aftermarket
Questions
Will this fit my truck?
This part fits Universal - tractors and trailers with air brake systems, Air brake plumbing / brake circuits, 1/2 in DOT air brake tubing into a 1/2 in female NPT port. Always confirm your year, make and model before ordering.
How fast does it ship?
In-stock orders placed before 12 PM Central on business days ship the same day from our Hanover Park, IL warehouse, and typically arrive in 2 to 5 business days anywhere in the USA.
What's your return policy?
Unused items in original packaging can be returned within 30 days, backed by our 30-day money-back guarantee. If we ship the wrong part, we cover the return label and send the correct one.