Air Brake Hose Coupling with Spring - 1/2" ID Hose x 1/2" NPT - Euclid E8599 33808BY38 177.16938D

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SKU: 177.16938D
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Fitment

Fits these trucks

Universal - Class 8 trucks, tractors and commercial trailersAir brake systems using 1/2 in ID DOT rubber hoseField assembly and repair of DOT air brake hose ends1/2 in NPT pipe fitting ports
Always confirm your year, make & model before ordering.
Part numbers

OEM & interchange numbers

5 cross-refs
Euclid E8599 33808BY38 68RBSG88 1048 500070
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview

Rebuild the hose end instead of replacing the whole line. This reusable air brake hose coupling with spring distributed by FleetPro Parts & Tires is field-assembly hardware for 1/2 in ID DOT rubber air brake hose, finished with a 1/2 in NPT pipe thread. A weeping or blown hose end bleeds off system pressure, keeps the compressor cycling, drops the low-air warning and eventually sets the spring brakes right where you happen to be standing. 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.

Air Lines You Can Rebuild: The Reusable 1/2 In Coupling Advantage

Reusable fitting hardware is what makes a spool of DOT rubber air brake hose worth keeping on the shelf. Trim the damaged hose back to sound rubber, assemble this 1/2 in coupling onto the fresh end, and the line goes back into service the same hour โ€” no crimping press, no waiting on a made-to-order assembly with the right ends on it. Because the fitting comes apart and goes back together, the next repair on that same line costs you hose and nothing else.

The attached spring wraps the hose where it exits the coupling and lets the assembly flex through its arc instead of kinking hard at the joint โ€” the exact spot an unsupported line chafes and cracks first. Terminating in a 1/2 in NPT pipe fitting, this coupling threads back into the same port the failed one came out of on any air brake system plumbed in 1/2 in DOT hose. At FleetPro Parts & Tires we would rather sell you the fitting than have you sit waiting on a hose shop. This Automann coupling is a direct replacement for highly searched industry numbers including Euclid E8599, 33808BY38, 68RBSG88, 1048 and 500070, and it replaces the earlier 177.7019.


Vehicle Fitment & Compatibility

This Fleet Standard fitting uses a universal design intended for the following commercial applications:

  • Make/Model: Universal - Class 8 trucks, commercial tractors and trailers
  • System: Air brake systems plumbed in 1/2 in ID DOT rubber hose
  • Port: 1/2 in NPT pipe fitting
  • Service: Field assembly and repair of DOT rubber air brake hose ends

Direct Replacement & Cross-Reference Numbers:

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

  • Euclid Interchange: E8599
  • Additional Interchange: 33808BY38, 68RBSG88, 1048, 500070
  • Automann Supersedes: 177.7019
  • Automann Distributor #: 177.16938D

Technical Specifications

  • Component Type: Reusable Air Brake Hose Coupling
  • Hose Size: 1/2 in ID DOT Air Brake Hose
  • Thread: 1/2 in NPT Pipe Fitting
  • Spring: Attached
  • Assembly: Field-assembled reusable fitting hardware
  • Replaces: 177.7019
  • OEM Reference: Euclid E8599
  • UPC: 889626446238
  • Product Level: Fleet Standard Aftermarket
  • Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
  • Field-Assembled, No Press Required: Reusable hardware builds a fresh 1/2 in DOT hose end at the bench or on the roadside instead of forcing you to buy a whole made-to-order assembly.
  • Spring Support at the Hose End: The attached spring wraps the hose where it leaves the fitting, the spot that flexes, chafes and cracks first.
  • Correct 1/2 In Pairing: Sized for 1/2 in ID DOT rubber air brake hose and a 1/2 in NPT port, so the joint seals instead of weeping.
  • Wide Euclid Interchange: Direct replacement for Euclid E8599 plus 33808BY38, 68RBSG88, 1048 and 500070.
  • Reusable on the Next Repair: The fitting comes apart and goes back on, so the following repair to that line costs hose and nothing more.
Specifications
Component Type
Reusable Air Brake Hose Coupling
Hose Size
1/2 in ID DOT Air Brake Hose
Thread
1/2 in NPT Pipe Fitting
Spring
Attached
Assembly
Field-assembled reusable fitting hardware
Replaces
177.7019
OEM Reference
Euclid E8599
UPC
889626446238
Product Level
Fleet Standard Aftermarket
Questions
Will this fit my truck?
This part fits Universal - Class 8 trucks, tractors and commercial trailers, Air brake systems using 1/2 in ID DOT rubber hose, Field assembly and repair of DOT air brake hose ends, 1/2 in NPT pipe fitting ports. Always confirm your year, make and model before ordering.
What part numbers does it replace?
Yes. It is a direct replacement that interchanges with Euclid E8599, 33808BY38, 68RBSG88, 1048, 500070.
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.