Gates G31104-0404 | Hydraulic Coupling / Adapter

Part Number
Air Brake to Male Pipe - 90 (SureLok)
Special Price $16.00 Regular Price $19.99
Out of stock
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Recommended for air brake systems – compressed air connectors or suspension, steering, engine transmission or other onboard vehicle applications. Not for fuel, oil or water.

Easy to assemble, push to connect, one piece fitting. Reusable and field serviceable. Designed for strength and durability. Provides significant reduction in air system leakage.

Meets DOT FMVSS 571.106, SAE J1131, DIN 74324 and German TUV requirements.

For use with SAE J844 or DIN 74324 nylon tubing.

Component Functions:

  • Body: Internal and external machined thread for connection to ports. Machining retains collet, tube support and O-Ring.
  • Tube Support: Prevents tube collapse during severe loading conditions.
  • Collet: Collet teeth grip the tube, holding it firmly in the fitting.
  • O-Ring: Internal O-Ring provides a seal and necessary interference between tube and fitting body.

Temperature Range: -40 Deg. F to +200 Deg. F (-40 Deg. C to +93 Deg. C).

Gates - Driven By Possibility

BRAND: Gates


  • Air Brake to Male Pipe - 90 (SureLok)
  • Air Brake to Male Pipe - 90 (SureLok)
  • Air Brake Fitting


California Proposition 65WARNING: Cancer and Reproductive Harm -
Coupling DescriptionSureLok Air Brake to Male Pipe - 90
Drop (in) - T1.02
Drop (mm) - T25.9
Industrial Description4AB-4MP90
Length (in) - L.87
Length (mm) - L22.1
Material360 Brass
Maximum Working Pressure (psi)150
Seal MaterialEthylene Propylene
Stem Hex (mm) - H118
Temperature Range-40 Deg. F to +200 Deg. F (-40 Deg. C to +93 Deg. C)
Thread Size - T11/4-18
Tube Outside Diameter (in).25


  • IMI Norgren: 95 433 110
  • Parker: 169PMTNS-4-4
  • Weatherhead: 1869X4X4
  • Alkon Corp: AQ-69-DOT-4X4
  • NAPA: G31104-0404
Customer Questions
What types of automotive products does Gates offer?
Gates offers a wide range of automotive products, including belts, hoses, tensioners, and more.
I'm looking for a replacement belt for my vehicle. Can you help me understand the different options available from Gates and recommend the best one for my specific make and model?
Yes, Gates offers a range of replacement belts for various applications. To find the best one for your specific make and model, it is recommended to consult the Gates website or reach out to their customer support.
Are there any specific maintenance for Gates products?
Yes, there are specific maintenance and installation guidelines to follow when using Gates products to ensure optimal performance and longevity.
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