Hydraulic Couplings

Hydraulic Couplings
  • Gates® - PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA)
    Gates® - PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA)
    1
    # 3199435670
    PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) 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
    $7.92 - $12.39
    Availability Varies - Depends on Product Options
  • Gates® - PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port
    Gates® - PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port
    1
    # 3199438696
    PolarSeal™ Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 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
    $22.76 - $39.37
    Availability Varies - Depends on Product Options
  • Gates® - PolarSeal™ Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Block
    Gates® - PolarSeal™ Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Block
    1
    # 3199437652
    PolarSeal™ Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Block 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
    $32.14 - $33.42
    Availability Varies - Depends on Product Options
  • Gates® - PolarSeal™ Steel Female Braze-On Stems Coupling (ACA)
    Gates® - PolarSeal™ Steel Female Braze-On Stems Coupling (ACA)
    1
    # 3199441664
    PolarSeal™ Steel Female Braze-On Stems Coupling (ACA) 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
    $8.25 - $13.47
    Availability Varies - Depends on Product Options
  • Gates® - PolarSeal™ Steel Female SAE 45° Flare Swivel Coupling (ACA)
    Gates® - PolarSeal™ Steel Female SAE 45° Flare Swivel Coupling (ACA)
    1
    # 3199441662
    PolarSeal™ Steel Female SAE 45° Flare Swivel Coupling (ACA) 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
    $11.60 - $14.10
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA)
    1
    # 3199440666
    PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) 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
    $11.58 - $17.75
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube
    Gates® - PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube
    1
    # 3199437756
    PolarSeal™ Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube 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
    $26.42 - $30.47
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ Steel Hose Splicer Coupling (ACA) with R134a Service Port
    Gates® - PolarSeal™ Steel Hose Splicer Coupling (ACA) with R134a Service Port
    1
    # 3199436720
    PolarSeal™ Steel Hose Splicer Coupling (ACA) with R134a Service Port 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
    $25.05 - $32.94
    Availability Varies - Depends on Product Options
  • Gates® - PolarSeal™ Steel Male Inverted O-Ring Coupling (ACA)
    Gates® - PolarSeal™ Steel Male Inverted O-Ring Coupling (ACA)
    1
    # 3199437667
    PolarSeal™ Steel Male Inverted O-Ring Coupling (ACA) 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
    $25.75 - $28.47
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ Steel Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ Steel Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA)
    1
    # 3199442686
    PolarSeal™ Steel Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) 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
    $12.26 - $19.43
    Availability Varies - Depends on Product Options
  • Gates® - PolarSeal™ Steel Male SAE Tube O-Ring Nut Swivel Coupling (ACA)
    Gates® - PolarSeal™ Steel Male SAE Tube O-Ring Nut Swivel Coupling (ACA)
    1
    # 3199442687
    PolarSeal™ Steel Male SAE Tube O-Ring Nut Swivel Coupling (ACA) 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
    $12.46 - $17.75
    In Stock - Ships within 24 hrs
  • Gates® - Power Crimp™ PC2F™ Steel Two Ferrules Coupling
    Gates® - Power Crimp™ PC2F™ Steel Two Ferrules Coupling
    1
    # 2467212243
    Power Crimp™ PC2F™ Steel Two Ferrules Coupling 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
    $4.88 - $88.54
    Availability Varies - Depends on Product Options
  • Gates® - Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel 90° Bent Tube Coupling
    Gates® - Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel 90° Bent Tube Coupling
    1
    # 2467208295
    Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel 90° Bent Tube Coupling 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
    $19.27 - $42.23
    Availability Varies - Depends on Product Options
  • Gates® - Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling Type A1
    Gates® - Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling Type A1
    1
    # 3199436659
    Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling Type A1 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
    $9.08 - $21.92
    Availability Varies - Depends on Product Options
  • Gates® - Steel Female JIC 37° Flare Swivel Coupling
    Gates® - Steel Female JIC 37° Flare Swivel Coupling
    1
    # 3199445782
    Steel Female JIC 37° Flare Swivel Coupling 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 and...
    High quality at an affordable priceExpertly made from premium materials
    $9.15 - $132.87
    Availability Varies - Depends on Product Options
  • Gates® - Steel Female SAE 45° Flare Swivel 45° Bent Tube Coupling
    Gates® - Steel Female SAE 45° Flare Swivel 45° Bent Tube Coupling
    1
    # 3199446730
    Steel Female SAE 45° Flare Swivel 45° Bent Tube Coupling 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
    $27.30 - $49.29
    Availability Varies - Depends on Product Options
  • Gates® - Steel Male SAE 45° Flare Inverted Swivel Coupling
    Gates® - Steel Male SAE 45° Flare Inverted Swivel Coupling
    1
    # 2467211262
    Steel Male SAE 45° Flare Inverted Swivel Coupling 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
    $14.36 - $37.80
    Availability Varies - Depends on Product Options
  • Gates® - Brass Air Brake Union Tee Coupling
    Gates® - Brass Air Brake Union Tee Coupling
    1
    # 3199437759
    Brass Air Brake Union Tee Coupling 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 and deliver...
    High quality at an affordable priceExpertly made from premium materials
    $12.33 - $81.75
    Availability Varies - Depends on Product Options
  • Gates® - Brass Air Brake to Female Pipe Hex Style Coupling
    Gates® - Brass Air Brake to Female Pipe Hex Style Coupling
    1
    # 3199440685
    Brass Air Brake to Female Pipe Hex Style Coupling 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
    $5.13 - $30.12
    Availability Varies - Depends on Product Options
  • Gates® - Brass Air Brake to Male Pipe with Nut and Sleeve
    Gates® - Brass Air Brake to Male Pipe with Nut and Sleeve
    1
    # 3199437761
    Brass Air Brake to Male Pipe with Nut and Sleeve 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
    $10.09 - $14.55
    Availability Varies - Depends on Product Options
  • Gates® - Brass Air Brake to Male Pipe with Spring Guard
    Gates® - Brass Air Brake to Male Pipe with Spring Guard
    1
    # 3199440661
    Brass Air Brake to Male Pipe with Spring Guard 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 and...
    High quality at an affordable priceExpertly made from premium materials
    $13.48 - $25.69
    Availability Varies - Depends on Product Options
  • Gates® - Brass Compression PVC to Male Pipe
    Gates® - Brass Compression PVC to Male Pipe
    0
    # 2467208300
    Brass Compression PVC to Male Pipe 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 and deliver...
    High quality at an affordable priceExpertly made from premium materials
    $2.78 - $19.80
    Availability Varies - Depends on Product Options
  • Gates® - Brass Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling
    Gates® - Brass Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling
    1
    # 2467215447
    Brass Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling 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
    $23.36 - $37.58
    Availability Varies - Depends on Product Options
  • Gates® - Brass Female Inverted Flare to Male Pipe 45° Adapter
    Gates® - Brass Female Inverted Flare to Male Pipe 45° Adapter
    0
    # 2467216034
    Brass Female Inverted Flare to Male Pipe 45° Adapter 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
    $2.13 - $30.65
    Availability Varies - Depends on Product Options
  • Gates® - Brass Female Inverted Flare to Male Pipe 90°
    Gates® - Brass Female Inverted Flare to Male Pipe 90°
    0
    # 2467216040
    Brass Female Inverted Flare to Male Pipe 90° 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 and...
    High quality at an affordable priceExpertly made from premium materials
    $2.18 - $59.03
    Availability Varies - Depends on Product Options
  • Gates® - Brass Female JIC 37° Flare Swivel Coupling
    Gates® - Brass Female JIC 37° Flare Swivel Coupling
    0
    # 2467212298
    Brass Female JIC 37° Flare Swivel Coupling 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 and...
    High quality at an affordable priceExpertly made from premium materials
    $15.51 - $50.27
    Availability Varies - Depends on Product Options
  • Gates® - Brass Female Pipe Cross Adapter
    Gates® - Brass Female Pipe Cross Adapter
    0
    # 2467211275
    Brass Female Pipe Cross Adapter 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 and deliver great...
    High quality at an affordable priceExpertly made from premium materials
    $4.76 - $86.70
    Availability Varies - Depends on Product Options
  • Gates® - Brass Female Pipe Swivel with Cone Seat Lock-On Field Attachable Coupling
    Gates® - Brass Female Pipe Swivel with Cone Seat Lock-On Field Attachable Coupling
    1
    # 2467208305
    Brass Female Pipe Swivel with Cone Seat Lock-On Field Attachable Coupling 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
    $11.96 - $36.90
    Availability Varies - Depends on Product Options
  • Gates® - Brass Female Pipe Union Tee Adapter
    Gates® - Brass Female Pipe Union Tee Adapter
    0
    # 2467210320
    Brass Female Pipe Union Tee Adapter 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 and deliver...
    High quality at an affordable priceExpertly made from premium materials
    $3.61 - $56.24
    Availability Varies - Depends on Product Options
  • Gates® - Brass Female Pipe to Female Pipe Adapter
    Gates® - Brass Female Pipe to Female Pipe Adapter
    0
    # 2467214222
    Brass Female Pipe to Female Pipe Adapter 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 and...
    High quality at an affordable priceExpertly made from premium materials
    $1.68 - $15.12
    Availability Varies - Depends on Product Options




Couplings are the essential parts of any hydraulic system. They are used to connect hoses and pipes to the other elements of the system including reservoirs, cylinders, valves, and pumps. Designed according to strict requirements, couplings are available in many types and materials compatible with the fluid circulating in the system. It is vital, hence, to pick the most appropriate class of fittings to get smooth running, top performance, and safety. Common materials include brass, stainless steel, aluminum, plastic, and copper. For example, plastic couplings offer good resistance to corrosion, but they are unreliable in high-pressure systems.

The choice of hydraulic couplings depends on the pressure rating, chemical compatibility with the fluid, operating temperature, and sealing capacity. Crimp fittings, coupling barbs, compression fittings, and quick disconnect couplers are the most common types used in hydraulic systems. Typically, they are available in many sizes and shapes to fit various designs. In our online catalog, you can find a wide assortment of these and other couplings including inverted flares, mini-barbed tubes, and reusable models. We also offer a broad selection of adapters to ensure flexibility and efficiency. The costs are reasonable, and the quality is ensured by leading companies in the industry.

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