Hydraulic Couplings
- Gates® - PolarSeal II™ 5/16" Clamp Assemblies Coupling (ACC) (G46995-0006)PolarSeal II™ 5/16" Clamp Assemblies Coupling (ACC) (G46995-0006) 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$7.10In Stock - Ships within 24 hrs
- Gates® - PolarSeal II™ 5/16" Male Insert O-Ring Coupling (ACC) (G46597-0606)PolarSeal II™ 5/16" Male Insert O-Ring Coupling (ACC) (G46597-0606) 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$28.93In Stock - Ships within 24 hrs
- Gates® - PolarSeal II™ 5/16" Straight Female O-Ring Coupling (ACC) (G46590-0606)PolarSeal II™ 5/16" Straight Female O-Ring Coupling (ACC) (G46590-0606) 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$15.91In Stock - Ships within 24 hrs
- Gates® - PolarSeal II™ 5/8" Male O-Ring Coupling (ACC) (G46583-1210)PolarSeal II™ 5/8" Male O-Ring Coupling (ACC) (G46583-1210) 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 in mind. It will meet...High quality at an affordable priceExpertly made from premium materials$17.32In Stock - Ships within 24 hrs
- Gates® - PolarSeal II™ 5/8" Splicer Coupling (ACC) (G46535-1212)PolarSeal II™ 5/8" Splicer Coupling (ACC) (G46535-1212) 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 mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$16.77In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Aluminum Compressor Block Coupling (ACA) Single Reverse w/Switch or Service Port 90° Bent Tube (G45962-1008)PolarSeal™ 1/2" Aluminum Compressor Block Coupling (ACA) Single Reverse w/Switch or Service Port 90° Bent Tube (G45962-1008) 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$21.87In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Aluminum Female SAE 45° Flare Swivel 90° Bent Tube Coupling (ACA) (G45205-1008)PolarSeal™ 1/2" Aluminum Female SAE 45° Flare Swivel 90° Bent Tube Coupling (ACA) (G45205-1008) 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$13.41In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Aluminum Male Inverted O-Ring Bulkhead 90° Bent Tube Coupling (ACA) (G45602-1010)PolarSeal™ 1/2" Aluminum Male Inverted O-Ring Bulkhead 90° Bent Tube Coupling (ACA) (G45602-1010) 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$28.85In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Aluminum Male SAE Flareless Assembly Coupling (ACA) (G45510-1010)PolarSeal™ 1/2" Aluminum Male SAE Flareless Assembly Coupling (ACA) (G45510-1010) 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$16.93In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA) (G45584-1010)PolarSeal™ 1/2" Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA) (G45584-1010) 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$10.08In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port (G45580-1010)PolarSeal™ 1/2" Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port (G45580-1010) 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$22.76In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Aluminum Male SAE Tube O-Ring Nut Swivel Coupling (ACA) with R134a Service Port 90° Bent Tube (G45582-1010)PolarSeal™ 1/2" Aluminum Male 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$18.57In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Bent Tube (G45958-1010S)PolarSeal™ 1/2" Steel Compressor Female SAE Tube O-Ring Nut Swivel Coupling (ACA) 90° Bent Tube (G45958-1010S) 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$25.44In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Steel Female Braze-On Stems Coupling (ACA) (G45527-1010S)PolarSeal™ 1/2" Steel Female Braze-On Stems Coupling (ACA) (G45527-1010S) 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$9.36In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1010S)PolarSeal™ 1/2" Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1010S) 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$17.75In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 1/2" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-1010S)PolarSeal™ 1/2" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-1010S) 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$11.95In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 13/32" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-0808)PolarSeal™ 13/32" Aluminum Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-0808) 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$8.61In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 13/32" Aluminum Hose Length Extender Coupling (ACA) (G45535-0808)PolarSeal™ 13/32" Aluminum Hose Length Extender Coupling (ACA) (G45535-0808) 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$8.90In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 13/32" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) (G45585-0806)PolarSeal™ 13/32" Aluminum Male SAE Tube O-Ring Nut 90° Bent Tube Coupling (ACA) (G45585-0806) 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...High quality at an affordable priceExpertly made from premium materials$10.71In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 13/32" Steel Compressor Female Tube O-Ring Nut Coupling (ACA) with 134a Service Port 90° Block (G45960-0810S)PolarSeal™ 13/32" Steel Compressor Female Tube O-Ring Nut Coupling (ACA) with 134a Service Port 90° Block (G45960-0810S) 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$36.85In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 13/32" Steel Hose Splicer Coupling (ACA) with R134a Service Port (G45956-0808S)PolarSeal™ 13/32" Steel Hose Splicer Coupling (ACA) with R134a Service Port (G45956-0808S) 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$29.79In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/16" Aluminum Female Braze-On Stems Coupling (ACA) (G45527-0606)PolarSeal™ 5/16" Aluminum Female Braze-On Stems Coupling (ACA) (G45527-0606) 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$8.39In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/16" Aluminum Female SAE 45° Flare Swivel 45° Bent Tube Coupling (ACA) (G45202-0606)PolarSeal™ 5/16" Aluminum Female SAE 45° Flare Swivel 45° Bent Tube Coupling (ACA) (G45202-0606) 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$9.02In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/16" Aluminum Male Inverted O-Ring 90° Bent Tube Coupling (ACA) (G45599-0606)PolarSeal™ 5/16" Aluminum Male Inverted O-Ring 90° Bent Tube Coupling (ACA) (G45599-0606) 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$10.48In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/16" Steel Female SAE 45° Flare Swivel 90° Bent Tube Coupling (ACA) (G45205-0606S)PolarSeal™ 5/16" Steel Female SAE 45° Flare Swivel 90° Bent Tube Coupling (ACA) (G45205-0606S) 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$14.01In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/16" Steel Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA) (G45591-0606S)PolarSeal™ 5/16" Steel Female SAE Tube O-Ring Nut Swivel 45° Bent Tube Coupling (ACA) (G45591-0606S) 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$13.48In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/16" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-0606S)PolarSeal™ 5/16" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-0606S) 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$11.01In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/16" Steel Male SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45583-0606S)PolarSeal™ 5/16" Steel Male SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45583-0606S) 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$12.46In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Aluminum Female Braze-On Stems Coupling (ACA) (G45527-1212)PolarSeal™ 5/8" Aluminum Female Braze-On Stems Coupling (ACA) (G45527-1212) 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$10.66In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Aluminum Female SAE 45° Flare Swivel 90° Bent Tube Coupling (ACA) (G45205-1210)PolarSeal™ 5/8" Aluminum Female SAE 45° Flare Swivel 90° Bent Tube Coupling (ACA) (G45205-1210) 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$11.62In 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.