Best Hydraulic Adapters in 2026

SUPERIOR PERFORMANCE: AquaAulos hydraulic fittings are made to the highest standards, with our JIC cap and plug kit meeting or exceeding SAE J514 conventions. These industrial heavy-duty JIC fittings are made from premium carbon steel galvanized with robust and long-lasting zinc, which prevents rust, corrosion, and degradation, even with extended use. Over time these fittings are exposed to hose fluid, so this durability is essential. You can trust our products like any leading brands, such as Parker, Eaton Aeroquip, or Gates, as they have been rigorously tested and meet the industry standards for pressure, temperature, and material strength!

PRECISION-ENGINEERED: We understand the importance of heavy-duty craftsmanship, which is exactly what we strive for in every piece in this kit. Our state-of-the-art CNC machine provides ultra-precise production, ensuring that the caps and plugs are made with fine-tolerance thread with good sealing for easy, repeated installation and removal. This extra attention to the manufacturing process enhances the adapter's performance. It provides customers with a competitive advantage through less downtime and extended equipment life, leading to increased revenues and reduced warranty costs.

AVOID COSTLY DOWNTIME: The perfect caps and plugs kit for the mechanic in you. These JIC kits seal and protect the ends of hydraulic hose and tube fittings to prevent hydraulic liquids from leaking onto the ground or into your or your client's machine. While you perform preventive maintenance, it also stops contaminants such as dirt, dust, moisture, and sand from entering and damaging your machine's sensitive and expensive parts, such as Pumps Motors, Valves, and Cylinders.

They create an effective means of connecting hydraulic hoses to control valves cylinders and other stationary components.

Use to properly plumb hydraulic system for longer hose service life

Hydraulic adapters are key components in any hydraulic system.

MATERIAL --- Premium forged brass 90-degree street elbow, thicker and stronger, durable, threads are deep and clear, high corrosion resistance, low magnetic permeability and high temperature ductility. Quantity: 4pieces 1/4 to 1/4 npt equal diameter brass elbow adapters.

SIZE --- 1/4 NPT Male to 1/4 NPT Female brass elbow. PLEASE NOTE, Brass pipe elbow is the USA NPT standard thread, with 60 degree taper; NPT Size only used as thread size code, so please measure and determine the required size before purchasing, and compare with the size chart.

FUNCTION --- Used to connect a 1/4 NPT male-ended and a 1/4 NPT female-ended pipe at right angle. Apply to plumbing connections, compressed air, hydraulic, refrigeration, instrumentation, gas and other applications.

The product is 1/2" male pipe x 1/2" female pipe swivel, hydraulic Adapter

Item Package Length: 3.599999996328"

Item Package Width: 2.599999997348"

64 PCS hydraulic JIC cap & plug fittings kit,AN assortment hydraulic fitting set,also known as "AN" 37 degree flare JIC caps and plugs. The JIC 37° flare thread cap & plug can be easily installation to seal hydraulic hoses, tubes, and pipes

A must have for hydraulic lines: hydraulic JIC plug and cap cap kit works great for hydraulic repairs.The JIC cap and plug are sealed quickly keep hydraulics lines from fluid leaking when remove fluids hydraulic application/machinery work/ truck/chemical processing systems

The hydraulic adapter fittings set are made by carbon steel to withstand high pressure applications and high heat fuel delivery and fluid power applications. The jic cap and plug kit fittings have precision threading to make sure install smoothly and resist corrosion

The product is 1/2" female pipe x 1/2" female pipe swivel, hydraulic Adapter

Model Number: 39004800

Item Package Dimension: 4.29999999561399" L x 2.49999999745" W x 1.699999998266" H

1/2" female JIC x 1/2" female pipe swivel

Hydraulic adapter

Can be used for industrial

1/2" Female JIC x 3/8" Female Pipe Swivel

Hydraulic Adapter

Can Be Used For Industrial

The product is 1/2" male pipe x 3/8" female pipe swivel, hydraulic Adapter

Item Package Length: 4.29999999561399"

Item Package Width: 2.599999997348"

Number Of Items: 1

Country Of Origin: China

Package Dimensions: 9.144 L X 6.604 W X 4.318 H (Cm)

Technical Description: 1404-4MP-6FPX

End 1 Size: 1/4"

End 1 Type: Male Pipe Thread

【PACKAGE CONTENTS】1Pc LS fuel filter/58psi regulator, 1Pc 6AN 25 feet of high-pressure fuel injection hose, 1Pc 6AN to 3/8" Male Straight Filter Fittings, 1Pc 6AN to 5/16" Fuel Filter Return Line Fitting, 2Pcs 6AN to 3/8" Fuel Filter Feed Line Fittings, 2Pcs -6AN to 1/4" NPT Fuel Pump Adapters, 2Pcs 45 Degree -6AN Female to 3/8" Push Lock hose fittings, 6Pcs straight -6AN Female to 3/8" Push Lock hose fittings

【HIGH QUALITY】The Fuel Hose made of Premium Quality NBR Rubber; The hose end AN fittings is made of high strength Aluminum , polished and anodized surface provide the bright appearance, corrosion protection and strong strength.

【APPLICATION】Mostly used in LS system and can be worked with petrol, diesel, oil, hydraulic fluid, pump gas, alcohol, E85 hose, coolant, fuel. Used this on a LS swap, make it easier for the plumbing of fuel system to run all the way from your fuel tank to the engine.

Made from high strength, corrosion resistant carbon steel

Crimps with 1/4" I.D. hydraulic hose, and features a #6 SAE/ORB male swivel 90 degree end

Excellent for fluid power systems and other hydraulic applications