Hydraulic Couplings
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Gates® - MegaCrimp™ 3/8" x 2.48" Female Pipe Swivel (NPSM 30° Cone Seat) Coupling (G25111-0606)MegaCrimp™ 3/8" x 2.48" Female Pipe Swivel (NPSM 30° Cone Seat) Coupling (G25111-0606) 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$17.53In Stock - Ships within 24 hrs - Gates® - MegaCrimp™ 3/8" x 2.51" Male Pipe (NPTF 30° Cone Seat) Coupling (G25100-0608)MegaCrimp™ 3/8" x 2.51" Male Pipe (NPTF 30° Cone Seat) Coupling (G25100-0608) by Gates®. MegaCrimp™ couplings give you a leak-proof seal that’s so innovative, it’s patented. It’s what’s inside the MegaCrimp coupling that...High quality at an affordable priceExpertly made from premium materials$9.67In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 3/8" x 2.63" Female JIC 37° Flare Swivel Coupling (G25170-0608)MegaCrimp™ 3/8" x 2.63" Female JIC 37° Flare Swivel Coupling (G25170-0608) by Gates®. MegaCrimp™ couplings give you a leak-proof seal that’s so innovative, it’s patented. It’s what’s inside the MegaCrimp coupling that makes...High quality at an affordable priceExpertly made from premium materials$12.39In Stock - Ships within 24 hrs
- Gates® - 1/2" x 3.10" Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling (G34210-1010)1/2" x 3.10" Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling (G34210-1010) 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...High quality at an affordable priceExpertly made from premium materials$18.75In Stock - Ships within 24 hrs
- Gates® - 3/16" x 1.92" Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling (G34210-0404)3/16" x 1.92" Steel Dual Seat Female JIC 37°/SAE 45° Flare Swivel Coupling (G34210-0404) 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...High quality at an affordable priceExpertly made from premium materials$8.13In Stock - Ships within 24 hrs
- Gates® - 5/16" x 2.42" Steel Female SAE 45° Flare Swivel Coupling (G34200-0606)5/16" x 2.42" Steel Female SAE 45° Flare Swivel Coupling (G34200-0606) 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$9.69In Stock - Ships within 24 hrs
- Gates® - GlobalSpiral™ 1/2" x 1.44" Ferrule for 4-Spiral Hose (G20995-0408)GlobalSpiral™ 1/2" x 1.44" Ferrule for 4-Spiral Hose (G20995-0408) by Gates®. GlobalSpiral™ couplings provide superior performance for extremely high-pressure, high-impulse spiral-wire hydraulic hose applications. The innovative...High quality at an affordable priceExpertly made from premium materials$7.07In Stock - Ships within 24 hrs
- Gates® - GlobalSpiral™ 3/4" x 2.00" Ferrule for 4-Spiral Hose (G20995-0412)GlobalSpiral™ 3/4" x 2.00" Ferrule for 4-Spiral Hose (G20995-0412) by Gates®. GlobalSpiral™ couplings provide superior performance for extremely high-pressure, high-impulse spiral-wire hydraulic hose applications. The innovative...High quality at an affordable priceExpertly made from premium materials$11.10In Stock - Ships within 24 hrs
- Gates® - GlobalSpiral™ 5/8" x 1.88" Ferrule for 4-Spiral Hose (G20995-0410)GlobalSpiral™ 5/8" x 1.88" Ferrule for 4-Spiral Hose (G20995-0410) by Gates®. GlobalSpiral™ couplings provide superior performance for extremely high-pressure, high-impulse spiral-wire hydraulic hose applications. The innovative...High quality at an affordable priceExpertly made from premium materials$9.08In Stock - Ships within 24 hrs
- Gates® - M3K™ MEGA3000™ 5/16" x 50' Nitrile Black Hydraulic Hose (85624)M3K™ MEGA3000™ 5/16" x 50' Nitrile Black Hydraulic Hose (85624) 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...RECOMMENDED FOR: High–pressure hydraulic oil lines. Exceeds ISO 18752 Grade B, SAE 100R17 and ISO 11237 R17 working pressure, minimum bend radius requirements and performance requirements of EN 857 1SC. M3K hose has smaller exterior dimensions and significantly tighter bend radius than other SAE 100R1 and 100R2 hose.COVER: Black, oil, abrasion and weather resistant, synthetic rubber (Nitrile and PVC), with color coded layline. Also available with unique abrasion resistant MegaTuff® or XtraTuff® covers. See Hose Stock Characteristics.$197.98In Stock - Ships within 24 hrs
- Gates® - M3K™ MEGA3000™ 5/8" x 50' Nitrile Black Hydraulic Hose (85627)M3K™ MEGA3000™ 5/8" x 50' Nitrile Black Hydraulic Hose (85627) 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...RECOMMENDED FOR: High–pressure hydraulic oil lines. Exceeds ISO 18752 Grade B, SAE 100R17 and ISO 11237 R17 working pressure, minimum bend radius requirements and performance requirements of EN 857 1SC. M3K hose has smaller exterior dimensions and significantly tighter bend radius than other SAE 100R1 and 100R2 hose.COVER: Black, oil, abrasion and weather resistant, synthetic rubber (Nitrile and PVC), with color coded layline. Also available with unique abrasion resistant MegaTuff® or XtraTuff® covers. See Hose Stock Characteristics.$507.43In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 1/2" x 1.81" Female Quick-Lok™ High to Female JIC 37° Flare Coupling (G25976-0808)MegaCrimp™ 1/2" x 1.81" Female Quick-Lok™ High to Female JIC 37° Flare Coupling (G25976-0808) 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...High quality at an affordable priceExpertly made from premium materials$9.16In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 1/2" x 2.56" Female Japanese Inverted Flare Parallel Threads Coupling (G25932-0808)MegaCrimp™ 1/2" x 2.56" Female Japanese Inverted Flare Parallel Threads Coupling (G25932-0808) by Gates®. MegaCrimp™ couplings give you a leak-proof seal that’s so innovative, it’s patented. It’s what’s inside the MegaCrimp...High quality at an affordable priceExpertly made from premium materials$37.79In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 1/2" x 2.63" Female Pipe (NPTF without 30° Cone Seat) Coupling (G25110-0808)MegaCrimp™ 1/2" x 2.63" Female Pipe (NPTF without 30° Cone Seat) Coupling (G25110-0808) 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$12.52In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 1/2" x 3.53" Female JIC 37° Flare Swivel 90° Bent Tube Coupling (G25179-0806)MegaCrimp™ 1/2" x 3.53" Female JIC 37° Flare Swivel 90° Bent Tube Coupling (G25179-0806) 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...High quality at an affordable priceExpertly made from premium materials$23.63In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 1/4" x 2.80" Male Flat-Face O-Ring Bulk Head Coupling (G25228-0404)MegaCrimp™ 1/4" x 2.80" Male Flat-Face O-Ring Bulk Head Coupling (G25228-0404) 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$29.67In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 3/8" x 2.06" Female Pipe (NPTF without 30° Cone Seat) Coupling (G25110-0606)MegaCrimp™ 3/8" x 2.06" Female Pipe (NPTF without 30° Cone Seat) Coupling (G25110-0606) 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$9.25In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 3/8" x 2.20" SAE Male Flareless Assembly Coupling (G25510-0606)MegaCrimp™ 3/8" x 2.20" SAE Male Flareless Assembly Coupling (G25510-0606) 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$14.95In Stock - Ships within 24 hrs
- Gates® - MegaCrimp™ 3/8" x 2.44" Female SAE 45° Flare Swivel Coupling (G25200-0606)MegaCrimp™ 3/8" x 2.44" Female SAE 45° Flare Swivel Coupling (G25200-0606) 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$8.88In Stock - Ships within 24 hrs
- Gates® - PS-MFA™ 0.375" Straight Female Steel Hydraulic Crimp Coupling (G50510-0606)PS-MFA™ 0.375" Straight Female Steel Hydraulic Crimp Coupling by Gates®. Gates’ line of Power Steering Couplings was specially designed to work with Power Steering hose applications and offers a leak-free solution to power steering...High quality at an affordable priceExpertly made from premium materials$16.82In Stock - Ships within 24 hrs
- Gates® - PolarSeal II™ 5/16" x 50' Hydraulic Hose (85384)PolarSeal II™ 5/16" x 50' Hydraulic Hose (85384) 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$201.73In Stock - Ships within 24 hrs
- Gates® - PolarSeal II™ 5/8" x 50' Hydraulic Hose (85387)PolarSeal II™ 5/8" x 50' Hydraulic Hose (85387) 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$346.79In Stock - Ships within 24 hrs
- OTC® - 3/8" Complete Hydraulic Quick Disconnect Couplers (9796)3/8" Complete Hydraulic Quick Disconnect Couplers (9796) by OTC®. Ram half coupler and dust cap. Precision built and designed for high pressure. Permits disconnecting hose without loss of oil. 3/8" NPTF. This product is made of...Designed to help to get your job done rightManufactured utilizing the highest quality materials$68.68In Stock - Ships in 24 to 48 hrs
- OTC® - 3/8" Ram Half Hydraulic Quick Disconnect Couplers (9795)3/8" Ram Half Hydraulic Quick Disconnect Couplers (9795) by OTC®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$85.26In Stock - Ships in 24 to 48 hrs
- OTC® - Steel Hydraulic Quick Disconnect Coupler (9798)Steel Hydraulic Quick Disconnect Coupler by OTC®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$45.68In Stock - Ships in 24 to 48 hrs
- American Grease Stick® - 1/4" Brass Compression Union (CF2)1/4" Brass Compression Union (CF2) by American Grease Stick®. Size: 1/4". Packaging Type: Card. Compression unions are used in low pressure application such as: air, oil, and water. They are generally used to connect lengths of copper,...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$1.76In Stock - Ships within 24 hrs
- American Grease Stick® - 3/16" Brass Compression Union (CF-1)3/16" Brass Compression Union (CF-1) by American Grease Stick®. Size: 3/16". Packaging Type: Card. Compression unions are used in low pressure application such as: air, oil, and water. They are generally used to connect lengths of...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$1.57In Stock - Ships within 24 hrs
- American Grease Stick® - 5/16" Brass Compression Union (CF-3)5/16" Brass Compression Union (CF-3) by American Grease Stick®. Size: 5/16". Packaging Type: Card. Compression unions are used in low pressure application such as: air, oil, and water. They are generally used to connect lengths of...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$1.54In Stock - Ships within 24 hrs
- Dayco® - 1-1/16"-12 Steel Male 37° Flare to Male ORB Adapter (145501)1-1/16"-12 Steel Male 37° Flare to Male ORB Adapter (145501) by Dayco®. 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$3.45In Stock - Ships within 24 hrs
- Dayco® - 1-1/16"-12 Steel Male 37° Flare to NPTF Male Adapter (143744)1-1/16"-12 Steel Male 37° Flare to NPTF Male Adapter (143744) by Dayco®. 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$2.77In 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.
