Hydraulic Pipe Thread Adapters

Hydraulic Pipe Thread Adapters
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA) (G45591-1210)
    1
    # mpn1894215257
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA) (G45591-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    High quality at an affordable priceExpertly made from premium materials
    $10.94
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA) (G45591-1212)
    1
    # mpn1894197612
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA) (G45591-1212) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    High quality at an affordable priceExpertly made from premium materials
    $12.08
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1212)
    1
    # mpn1894222141
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1212) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    High quality at an affordable priceExpertly made from premium materials
    $12.15
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1210)
    1
    # mpn1894197608
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    High quality at an affordable priceExpertly made from premium materials
    $13.61
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-1210)
    1
    # mpn1894215261
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
    High quality at an affordable priceExpertly made from premium materials
    $10.69
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port (G45588-1210)
    1
    # mpn1894215267
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port (G45588-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    High quality at an affordable priceExpertly made from premium materials
    $26.78
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube (G45589-1210)
    1
    # mpn1894197619
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube (G45589-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using...
    High quality at an affordable priceExpertly made from premium materials
    $31.02
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Hose Length Extender Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Hose Length Extender Coupling (ACA) (G45535-1212)
    1
    # mpn1894197641
    PolarSeal™ 5/8" Aluminum Hose Length Extender Coupling (ACA) (G45535-1212) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
    High quality at an affordable priceExpertly made from premium materials
    $7.95
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Male Inverted O-Ring Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Male Inverted O-Ring Coupling (ACA) (G45597-1212)
    1
    # mpn1894215242
    PolarSeal™ 5/8" Aluminum Male Inverted O-Ring Coupling (ACA) (G45597-1212) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
    High quality at an affordable priceExpertly made from premium materials
    $11.57
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Male SAE Flareless Assembly Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Male SAE Flareless Assembly Coupling (ACA) (G45510-1212)
    1
    # mpn1894215294
    PolarSeal™ 5/8" Aluminum Male SAE Flareless Assembly Coupling (ACA) (G45510-1212) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers...
    High quality at an affordable priceExpertly made from premium materials
    $20.27
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Male SAE Flareless Assembly Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Male SAE Flareless Assembly Coupling (ACA) (G45510-1210)
    1
    # mpn1894207713
    PolarSeal™ 5/8" Aluminum Male SAE Flareless Assembly Coupling (ACA) (G45510-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers...
    High quality at an affordable priceExpertly made from premium materials
    $19.67
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) (G45585-1212)
    1
    # mpn1894222146
    PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) (G45585-1212) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...
    High quality at an affordable priceExpertly made from premium materials
    $12.09
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) (G45585-1210)
    1
    # mpn1894207689
    PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) (G45585-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...
    High quality at an affordable priceExpertly made from premium materials
    $12.31
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45583-1210)
    1
    # mpn1894197632
    PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45583-1210) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
    High quality at an affordable priceExpertly made from premium materials
    $7.92
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Bent Tube
    Gates® - PolarSeal™ 5/8" Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Bent Tube (G45958-1210S)
    1
    # mpn1894207627
    PolarSeal™ 5/8" Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Bent Tube (G45958-1210S) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    High quality at an affordable priceExpertly made from premium materials
    $18.59
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Steel Compressor Female Tube O-Ring Nut Coupling (ACA) with 134a Service Port 90° Block
    Gates® - PolarSeal™ 5/8" Steel Compressor Female Tube O-Ring Nut Coupling (ACA) with 134a Service Port 90° Block (G45960-1210S)
    1
    # mpn1894198550
    PolarSeal™ 5/8" Steel Compressor Female Tube O-Ring Nut Coupling (ACA) with 134a Service Port 90° Block (G45960-1210S) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using...
    High quality at an affordable priceExpertly made from premium materials
    $35.73
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube
    Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube (G45589-1210S)
    1
    # mpn1894207682
    PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube (G45589-1210S) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using...
    High quality at an affordable priceExpertly made from premium materials
    $30.47
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ Steel R12 Ferrules Coupling (8PCACF)
    Gates® - PolarSeal™ Steel R12 Ferrules Coupling (8PCACF) (83931)
    1
    # mpn1894209354
    PolarSeal™ Steel R12 Ferrules Coupling (8PCACF) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
    High quality at an affordable priceExpertly made from premium materials
    $2.35
    In Stock - Ships within 24 hrs
  • Gates® - Service Gladhand Coupling for Rubber Hose
    Gates® - Service Gladhand Coupling for Rubber Hose (G33031-0508)
    1
    # mpn1894208773
    Service Gladhand Coupling for Rubber Hose (G33031-0508) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
    High quality at an affordable priceExpertly made from premium materials
    $13.51
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.28" Air Brake to Male Pipe 90° Coupling
    Gates® - SureLok™ 1/2" x 1.28" Air Brake to Male Pipe 90° Coupling (G31104-0808)
    1
    # mpn1894215463
    SureLok™ 1/2" x 1.28" Air Brake to Male Pipe 90° Coupling (G31104-0808) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....
    High quality at an affordable priceExpertly made from premium materials
    $13.93
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.64" Air Brake to Male Pipe Coupling
    Gates® - SureLok™ 1/2" x 1.64" Air Brake to Male Pipe Coupling (G31100-0806)
    1
    # mpn1894207896
    SureLok™ 1/2" x 1.64" Air Brake to Male Pipe Coupling (G31100-0806) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...
    High quality at an affordable priceExpertly made from premium materials
    $11.53
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.68" Air Brake to Male Pipe Coupling
    Gates® - SureLok™ 1/2" x 1.68" Air Brake to Male Pipe Coupling (G31100-0804)
    1
    # mpn1894197828
    SureLok™ 1/2" x 1.68" Air Brake to Male Pipe Coupling (G31100-0804) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...
    High quality at an affordable priceExpertly made from premium materials
    $10.89
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 2.01" Air Brake Union Coupling
    Gates® - SureLok™ 1/2" x 2.01" Air Brake Union Coupling (G31400-0808)
    1
    # mpn1894216406
    SureLok™ 1/2" x 2.01" Air Brake Union Coupling (G31400-0808) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
    High quality at an affordable priceExpertly made from premium materials
    $10.47
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 2.38" Air Brake to Male Pipe 45° Coupling
    Gates® - SureLok™ 1/2" x 2.38" Air Brake to Male Pipe 45° Coupling (G31102-0806)
    1
    # mpn1894207891
    SureLok™ 1/2" x 2.38" Air Brake to Male Pipe 45° Coupling (G31102-0806) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....
    High quality at an affordable priceExpertly made from premium materials
    $14.24
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 2.44" Air Brake Union Tee Coupling
    Gates® - SureLok™ 1/2" x 2.44" Air Brake Union Tee Coupling (G31451-0806)
    1
    # mpn1894216400
    SureLok™ 1/2" x 2.44" Air Brake Union Tee Coupling (G31451-0806) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
    High quality at an affordable priceExpertly made from premium materials
    $26.75
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 2.53" Air Brake Union Tee Coupling
    Gates® - SureLok™ 1/2" x 2.53" Air Brake Union Tee Coupling (G31450-0808)
    1
    # mpn1894216402
    SureLok™ 1/2" x 2.53" Air Brake Union Tee Coupling (G31450-0808) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
    High quality at an affordable priceExpertly made from premium materials
    $17.49
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 2.60" Air Brake to Male Pipe 45° Coupling
    Gates® - SureLok™ 1/2" x 2.60" Air Brake to Male Pipe 45° Coupling (G31102-0808)
    1
    # mpn1894215468
    SureLok™ 1/2" x 2.60" Air Brake to Male Pipe 45° Coupling (G31102-0808) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....
    High quality at an affordable priceExpertly made from premium materials
    $16.05
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 0.83" Air Brake Union 90° Coupling
    Gates® - SureLok™ 1/4" x 0.83" Air Brake Union 90° Coupling (G31404-0404)
    1
    # mpn1894198757
    SureLok™ 1/4" x 0.83" Air Brake Union 90° Coupling (G31404-0404) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
    High quality at an affordable priceExpertly made from premium materials
    $11.20
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 0.83" Air Brake to Male Pipe Swivel 90° Coupling
    Gates® - SureLok™ 1/4" x 0.83" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0402)
    1
    # mpn1894222184
    SureLok™ 1/4" x 0.83" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0402) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
    High quality at an affordable priceExpertly made from premium materials
    $9.35
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 0.87" Air Brake to Male Pipe 90° Coupling
    Gates® - SureLok™ 1/4" x 0.87" Air Brake to Male Pipe 90° Coupling (G31104-0404)
    1
    # mpn1894215466
    SureLok™ 1/4" x 0.87" Air Brake to Male Pipe 90° Coupling (G31104-0404) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....
    High quality at an affordable priceExpertly made from premium materials
    $7.74
    In Stock - Ships within 24 hrs




In hydraulic and pneumatic systems, fittings provide the connections between hoses, pipes, and other parts of the installation, including valves, pumps, and tanks. The large availability of Couplings and other fittings can be somewhat confusing and create misunderstanding on their peculiar characteristics. In general, a fitting is a part designed to provide a reliable connection with other components. An adapter is a component that forms a joint between couplings having different types or sizes. In some cases, adapters can work as fittings. The creative but rigorous combinations of different fittings allow designers and engineers to compose efficient hydraulic systems, getting the most from each installation.

Adapters are made from various materials including rubber, brass, and steel. Available types cover all the possible situations; the frequently used ones are female to female, male to female, male to male, barbed, and female cap nut variants, among many others. You can find a wide range of hydraulic pipe thread adapters on our virtual shelves. Made by trustworthy companies, our products meet the highest industry standards for the category and are offered at reasonable prices.

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