Push-to-Connect Swivel Male Run Tee - DOT 3/8" Run x 1/4" Branch x M12 - Freightliner 23-14562-003 177.12C7164M12

Tap a small branch off a main air run and land it on a metric port with this DOT Push-to-Connect (PLC) Swivel Male Run Tee distributed by FleetPro Parts & Tires. The 3/8 in run passes straight through, a 1/4 in branch comes off it, and the whole assembly threads into an M12 x 1.5 port on a swivel with an O-ring — three connections and a size change in a single body. Every fitting you avoid stacking is one less thread to weep from: a leaking air circuit runs the compressor nonstop, nags the driver with the low-air buzzer, and is an instant 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.

Three Connections, One Body: The Swivel Run Tee Advantage

The M12 x 1.5 metric swivel with O-ring is what makes this fitting worth carrying. The O-ring seals on the face, so the joint holds without being cranked down, and the swivel lets you seat the thread first and then rotate the tee to line up with the tube run. Both tube ends are push-to-connect into a composite body with a brass collet: push the tube home and the collet locks it, with no flaring, no compression sleeve to tighten and no special tooling under the truck. The composite housing resists the road salt, spray and moisture that pit all-metal fittings.

It is built to the FMVSS 571.106 / DOT requirements that govern brake circuits. At FleetPro Parts & Tires, we know a brake job is only right when every joint holds. This run tee is the direct replacement for Freightliner 23-14562-003, also catalogued without the hyphens as 2314562003, and it is backed by our 1-Year FleetPro Warranty.

Vehicle Fitment & Compatibility

This DOT air brake fitting is intended for the following commercial applications:

• Make: Freightliner
• System: Air brake plumbing on tractors and trailers
• Tube Size: 3/8 in run, 1/4 in branch
• Port Thread: M12 x 1.5 metric, swivel with O-ring
• Compliance: FMVSS 571.106 / DOT brake circuit requirements
• Component Group: Air Brake & Wheel / Air System Manifolds & Valves

Direct Replacement & Cross-Reference Numbers:

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

• Freightliner Interchange: 23-14562-003, 2314562003
• Automann Distributor #: 177.12C7164M12

Technical Specifications

• Component Type: Push-to-Connect (PLC) Swivel Male Run Tee, DOT Air Brake
• Tube Ends: 3/8 in run, 1/4 in branch
• Thread: M12 x 1.5 metric, swivel with O-ring
• Body: Composite with Brass Collet
• Compliance: FMVSS 571.106 / DOT
• Weight: 0.086 lbs
• Package Dims: 2.45 x 1.37 x 0.7 in
• Condition: New
• Warranty: 1-Year FleetPro Warranty
• Product Level: Fleet Standard Aftermarket
• Brand: Automann (Distributed by FleetPro Parts & Tires)