Brass Male Elbow Fuel/Air Fitting - M22 x 1.5 Thread x 5/8in Nylon Tubing - Freightliner 23-13499-001 177.146910M22

Route a large fuel or air line around a corner with this DOT brass male elbow distributed by FleetPro Parts & Tires. It mates an M22 x 1.5 thread to 5/8in nylon tubing, which is the connection you need where a heavy supply line leaves a tank, a filter head or a manifold and has to turn immediately. Forcing 5/8in nylon into a bend it cannot take collapses the tube, starves the circuit and eventually cracks at the fitting — and a weeping fuel or air connection is a road call, a shop stain and a failed inspection all at once. Manufactured by Automann to Fleet Standard specifications, 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.

Fuel or Air, One Elbow: The M22 x 1.5 Compression Advantage

This is a compression male elbow in brass, so it clamps the nylon tube on its own sealing surface and holds it there through vibration and heat cycling instead of relying on a barb and a clamp. Brass is the right material for a dual-duty fuel and air fitting: it will not rust from tank condensation, it shrugs off winter road salt, and it stays serviceable — you can crack the nut, pull the tube and reseal it without cutting the fitting out of the chassis.

The M22 x 1.5 thread matches the metric port directly, so there is no reducer bushing stacked underneath adding another sealing surface to leak. As a DOT-approved nylon tubing fitting, it is rated for the fuel and air line plumbing on tractors and trailers rather than shop-grade use. At FleetPro Parts & Tires, we know the fitting is where the line fails. This Automann elbow is a direct replacement for the highly searched industry number Freightliner 23-13499-001.

Vehicle Fitment & Compatibility

This universal-application brass fitting is intended for the following commercial use:

• Make/Model: Universal - Class 8 tractors and commercial trailers
• System: Fuel and air line plumbing on tractors and trailers
• Thread: M22 x 1.5 metric port
• Tube End: 5/8in nylon tubing, compression
• 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:

• Freightliner Interchange: 23-13499-001, 2313499001
• Automann Distributor #: 177.146910M22

Technical Specifications

• Component Type: Compression Male Elbow, Fuel/Air
• Thread: M22 x 1.5
• Tube End: 5/8in Nylon Tubing
• Body Material: Brass
• Application: Universal
• Compliance: DOT-approved nylon tubing fitting
• UPC: 889626690693
• Product Level: Fleet Standard Aftermarket
• Brand: Automann (Distributed by FleetPro Parts & Tires)