Hydraulic Couplings

Hydraulic Couplings
  • Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Metric Nut Swivel 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Metric Nut Swivel 90° Bent Tube Coupling (ACA) (G45595-1227)
    0
    # mpn1894207663
    PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Metric Nut Swivel 90° Bent Tube Coupling (ACA) (G45595-1227) 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
    $15.47
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Hose Splicer Coupling (ACA) with R134a Service Port
    Gates® - PolarSeal™ 5/8" Aluminum Hose Splicer Coupling (ACA) with R134a Service Port (G45956-1212)
    0
    # mpn1894222132
    PolarSeal™ 5/8" Aluminum Hose Splicer Coupling (ACA) with R134a Service Port (G45956-1212) 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...
    High quality at an affordable priceExpertly made from premium materials
    $17.36
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA) (G45584-1212)
    0
    # mpn1894197629
    PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA) (G45584-1212) 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
    $12.39
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Steel Female Braze-On Stems Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Steel Female Braze-On Stems Coupling (ACA) (G45527-1210S)
    0
    # mpn1894215289
    PolarSeal™ 5/8" Steel Female Braze-On Stems Coupling (ACA) (G45527-1210S) 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
    $10.83
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1210S)
    0
    # mpn1894207670
    PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1210S) by Gates®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...
    High quality at an affordable priceExpertly made from premium materials
    $15.51
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA)
    Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-1210S)
    0
    # mpn1894222142
    PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-1210S) 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
    $14.28
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ 5/8" Steel Hose Splicer Coupling (ACA) with R134a Service Port
    Gates® - PolarSeal™ 5/8" Steel Hose Splicer Coupling (ACA) with R134a Service Port (G45956-1212S)
    0
    # mpn1894197567
    PolarSeal™ 5/8" Steel Hose Splicer Coupling (ACA) with R134a Service Port (G45956-1212S) 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
    $25.05
    In Stock - Ships within 24 hrs
  • Gates® - PolarSeal™ Steel R12 Ferrules Coupling (12PCACF)
    Gates® - PolarSeal™ Steel R12 Ferrules Coupling (12PCACF) (83933)
    0
    # mpn1894199289
    PolarSeal™ Steel R12 Ferrules Coupling (12PCACF) 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
    $2.39
    In Stock - Ships within 24 hrs
  • Gates® - Power Crimp™ 1/2" Female Braze-On Stems Coupling
    Gates® - Power Crimp™ 1/2" Female Braze-On Stems Coupling (80405)
    0
    # mpn1894216978
    Power Crimp™ 1/2" Female Braze-On Stems Coupling (80405) 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
    $8.28
    In Stock - Ships within 24 hrs
  • Gates® - Power Crimp™ 3/16" x 1/2" Male Pipe (NPTF – 30° Cone Seat) Coupling
    Gates® - Power Crimp™ 3/16" x 1/2" Male Pipe (NPTF – 30° Cone Seat) Coupling (80001)
    0
    # mpn1894209415
    Power Crimp™ 3/16" x 1/2" Male Pipe (NPTF – 30° Cone Seat) Coupling (80001) 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
    $8.90
    In Stock - Ships within 24 hrs
  • Gates® - Power Crimp™ 3/8" Female Braze-On Stems Coupling
    Gates® - Power Crimp™ 3/8" Female Braze-On Stems Coupling (80403)
    0
    # mpn1894216979
    Power Crimp™ 3/8" Female Braze-On Stems Coupling (80403) 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
    $5.93
    In Stock - Ships within 24 hrs
  • Gates® - Power Crimp™ PC1FS™ 0.83" x 1.20" Steel One Non-Skive Ferrules Coupling
    Gates® - Power Crimp™ PC1FS™ 0.83" x 1.20" Steel One Non-Skive Ferrules Coupling (80481)
    0
    # mpn1894216961
    Power Crimp™ PC1FS™ 0.83" x 1.20" Steel One Non-Skive Ferrules Coupling (80481) 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
    $4.32
    In Stock - Ships within 24 hrs
  • Gates® - Power Crimp™ PC2F™ 0.89" x 1.20" Steel Two Ferrules Coupling
    Gates® - Power Crimp™ PC2F™ 0.89" x 1.20" Steel Two Ferrules Coupling (80461)
    0
    # mpn1894222499
    Power Crimp™ PC2F™ 0.89" x 1.20" Steel Two Ferrules Coupling (80461) 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
    $8.62
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.22" Air Brake to Male Pipe 90° Coupling
    Gates® - SureLok™ 1/2" x 1.22" Air Brake to Male Pipe 90° Coupling (G31104-0804)
    0
    # mpn1894197818
    SureLok™ 1/2" x 1.22" Air Brake to Male Pipe 90° Coupling (G31104-0804) 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....
    High quality at an affordable priceExpertly made from premium materials
    $16.37
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.26" Air Brake to Male Pipe 90° Coupling
    Gates® - SureLok™ 1/2" x 1.26" Air Brake to Male Pipe 90° Coupling (G31104-0806)
    0
    # mpn1894207886
    SureLok™ 1/2" x 1.26" Air Brake to Male Pipe 90° Coupling (G31104-0806) 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
    $13.18
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling
    Gates® - SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0804)
    0
    # mpn1894207878
    SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0804) 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...
    High quality at an affordable priceExpertly made from premium materials
    $26.48
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling
    Gates® - SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0808)
    0
    # mpn1894197809
    SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0808) 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...
    High quality at an affordable priceExpertly made from premium materials
    $19.23
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 1.72" Air Brake to Male Pipe Coupling
    Gates® - SureLok™ 1/2" x 1.72" Air Brake to Male Pipe Coupling (G31100-0808)
    0
    # mpn1894215473
    SureLok™ 1/2" x 1.72" Air Brake to Male Pipe Coupling (G31100-0808) 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...
    High quality at an affordable priceExpertly made from premium materials
    $12.64
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/2" x 5.56" Air Brake Branch Tee to Male Pipe Swivel Coupling
    Gates® - SureLok™ 1/2" x 5.56" Air Brake Branch Tee to Male Pipe Swivel Coupling (G31142-0808)
    0
    # mpn1894215440
    SureLok™ 1/2" x 5.56" Air Brake Branch Tee to Male Pipe Swivel Coupling (G31142-0808) 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...
    High quality at an affordable priceExpertly made from premium materials
    $27.51
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" Air Brake Cartridge Coupling
    Gates® - SureLok™ 1/4" Air Brake Cartridge Coupling (G31080-0004)
    0
    # mpn1894207901
    SureLok™ 1/4" Air Brake Cartridge Coupling (G31080-0004) 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
    $8.13
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 0.81" Air Brake to Male Pipe 90° Coupling
    Gates® - SureLok™ 1/4" x 0.81" Air Brake to Male Pipe 90° Coupling (G31104-0402)
    0
    # mpn1894207889
    SureLok™ 1/4" x 0.81" Air Brake to Male Pipe 90° Coupling (G31104-0402) 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 mind....
    High quality at an affordable priceExpertly made from premium materials
    $7.01
    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 (G31124-0404)
    0
    # mpn1894197811
    SureLok™ 1/4" x 0.83" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0404) 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...
    High quality at an affordable priceExpertly made from premium materials
    $9.87
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 1.04" Air Brake to Male Pipe Coupling
    Gates® - SureLok™ 1/4" x 1.04" Air Brake to Male Pipe Coupling (G31100-0402)
    0
    # mpn1894215476
    SureLok™ 1/4" x 1.04" Air Brake to Male Pipe Coupling (G31100-0402) 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 mind. It...
    High quality at an affordable priceExpertly made from premium materials
    $4.51
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 1.12" Air Brake Plugs Coupling
    Gates® - SureLok™ 1/4" x 1.12" Air Brake Plugs Coupling (G31050-0004)
    0
    # mpn1894215480
    SureLok™ 1/4" x 1.12" Air Brake Plugs Coupling (G31050-0004) 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...
    Recommended For: Compressed air as a connector on all air brake systems at locations other than between chassis frame and axle or between towed and towing vehicle. Also as a connector on all air operated systems as applicable to suspension, steering, engine, transmission and auxiliary mechanisms. Fittings and tubing comply to DOT FMVSS 106, mandatory requirements for inch tube fittings is U.S.A., Society for Automotive Engineers (SAE J1131, inch tube and fittings) and meets DIN 74324 and German TUV requirements (metric tube and fittings).High quality at an affordable price
    $1.57
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 1.77" Air Brake Branch Tee to Male Pipe Coupling
    Gates® - SureLok™ 1/4" x 1.77" Air Brake Branch Tee to Male Pipe Coupling (G31134-0404)
    0
    # mpn1894215448
    SureLok™ 1/4" x 1.77" Air Brake Branch Tee to Male Pipe Coupling (G31134-0404) 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...
    High quality at an affordable priceExpertly made from premium materials
    $19.91
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 1/4" x 1.95" Air Brake Run Tee to Male Pipe Swivel Coupling
    Gates® - SureLok™ 1/4" x 1.95" Air Brake Run Tee to Male Pipe Swivel Coupling (G31140-0404)
    0
    # mpn1894207867
    SureLok™ 1/4" x 1.95" Air Brake Run Tee to Male Pipe Swivel Coupling (G31140-0404) 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...
    High quality at an affordable priceExpertly made from premium materials
    $13.53
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 3/16" x 0.81" Air Brake to Male Pipe 90° Coupling
    Gates® - SureLok™ 3/16" x 0.81" Air Brake to Male Pipe 90° Coupling (G31104-0302)
    0
    # mpn1894222185
    SureLok™ 3/16" x 0.81" Air Brake to Male Pipe 90° Coupling (G31104-0302) 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
    $8.08
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 3/16" x 1.36" Air Brake Union Coupling
    Gates® - SureLok™ 3/16" x 1.36" Air Brake Union Coupling (G31400-0303)
    0
    # mpn1894216407
    SureLok™ 3/16" x 1.36" Air Brake Union Coupling (G31400-0303) 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
    $12.15
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling
    Gates® - SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0602)
    0
    # mpn1894222183
    SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0602) 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
    $13.55
    In Stock - Ships within 24 hrs
  • Gates® - SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling
    Gates® - SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0604)
    0
    # mpn1894207879
    SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0604) 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
    $12.72
    In Stock - Ships within 24 hrs




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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