Hydraulic Couplings
- Gates® - PolarSeal™ 5/8" Aluminum Female SAE Tube O-Ring Metric Nut Swivel 90° Bent Tube Coupling (ACA) (G45595-1227)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$15.47In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Aluminum Hose Splicer Coupling (ACA) with R134a Service Port (G45956-1212)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$17.36In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Aluminum Male SAE Tube O-Ring Nut 45° Bent Tube Coupling (ACA) (G45584-1212)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$12.39In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Steel Female Braze-On Stems Coupling (ACA) (G45527-1210S)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$10.83In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel 90° Bent Tube Coupling (ACA) (G45592-1210S)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$15.51In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Steel Female SAE Tube O-Ring Nut Swivel Coupling (ACA) (G45590-1210S)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$14.28In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ 5/8" Steel Hose Splicer Coupling (ACA) with R134a Service Port (G45956-1212S)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$25.05In Stock - Ships within 24 hrs
- Gates® - PolarSeal™ Steel R12 Ferrules Coupling (12PCACF) (83933)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$2.39In Stock - Ships within 24 hrs
- Gates® - Power Crimp™ 1/2" Female Braze-On Stems Coupling (80405)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$8.28In Stock - Ships within 24 hrs
- Gates® - Power Crimp™ 3/16" x 1/2" Male Pipe (NPTF – 30° Cone Seat) Coupling (80001)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$8.90In Stock - Ships within 24 hrs
- Gates® - Power Crimp™ 3/8" Female Braze-On Stems Coupling (80403)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$5.93In Stock - Ships within 24 hrs
- Gates® - Power Crimp™ PC1FS™ 0.83" x 1.20" Steel One Non-Skive Ferrules Coupling (80481)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$4.32In Stock - Ships within 24 hrs
- Gates® - Power Crimp™ PC2F™ 0.89" x 1.20" Steel Two Ferrules Coupling (80461)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$8.62In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/2" x 1.22" Air Brake to Male Pipe 90° Coupling (G31104-0804)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$16.37In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/2" x 1.26" Air Brake to Male Pipe 90° Coupling (G31104-0806)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$13.18In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0804)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$26.48In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/2" x 1.27" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0808)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$19.23In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/2" x 1.72" Air Brake to Male Pipe Coupling (G31100-0808)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$12.64In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/2" x 5.56" Air Brake Branch Tee to Male Pipe Swivel Coupling (G31142-0808)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$27.51In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/4" Air Brake Cartridge Coupling (G31080-0004)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$8.13In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/4" x 0.81" Air Brake to Male Pipe 90° Coupling (G31104-0402)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$7.01In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/4" x 0.83" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0404)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$9.87In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/4" x 1.04" Air Brake to Male Pipe Coupling (G31100-0402)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$4.51In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/4" x 1.12" Air Brake Plugs Coupling (G31050-0004)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$1.57In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/4" x 1.77" Air Brake Branch Tee to Male Pipe Coupling (G31134-0404)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$19.91In Stock - Ships within 24 hrs
- Gates® - SureLok™ 1/4" x 1.95" Air Brake Run Tee to Male Pipe Swivel Coupling (G31140-0404)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$13.53In Stock - Ships within 24 hrs
- Gates® - SureLok™ 3/16" x 0.81" Air Brake to Male Pipe 90° Coupling (G31104-0302)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$8.08In Stock - Ships within 24 hrs
- Gates® - SureLok™ 3/16" x 1.36" Air Brake Union Coupling (G31400-0303)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$12.15In Stock - Ships within 24 hrs
- Gates® - SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0602)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$13.55In Stock - Ships within 24 hrs
- Gates® - SureLok™ 3/8" x 1.07" Air Brake to Male Pipe Swivel 90° Coupling (G31124-0604)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$12.72In 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.