Top 10 Best hydraulic cap in 2026

Last Updated - 6/17/2026

🏆Best Choice

Innconee

Innconee Hydraulic Oil Service Plugs Large Medium Small Sizes Multi Pack Rubber Drip Proof Hose Plugs Industrial Hydraulic Kit for Irrigation, 3 Sizes(35 Pcs,Orange)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Plenty to Choose from: with rich quantity, our set includes 35 hydraulic oil service plugs, these meticulously manufactured plugs come in various sizes to cater to your diverse needs, 5 in large size, 10 in medium size, 20 in small size, their corresponding specifications are about 1.5 x 0.47 x 5.51 inches, 1.02 x 0.31 x 3.66 inches, and 0.51 x 0.04 x 3.03 inches
•Quality Ensures Longevity: our multi pack rubber plugs are made from quality rubber material noted for its excellent resistance against oil; This robust construction ensures a significantly extended service life, making them reusable multiple times
•Plugs for Various Oil Pipes: the thoughtful design coupled with varying dimensions make our hose plugs ideal for an assortment of usage scenarios and different sizes of oil pipes, these meticulously crafted plugs cater to a wide array of oil pipes, ensuring convenience and user satisfaction
•Easy to Cut Oil Service Plugs: we provide user friendly and easy to cut hydraulic plug kit, DIY the length according to your needs effortlessly; Enjoy flexibility and precision in your maintenance routine with our hydraulic plugs, designed to adapt to your different needs
•Quick and Effortless Installation: our hydraulic hose plugs are easy to use; Simply push and reverse to insert them, saving precious time and reducing hassle during the oil service process, this user friendly design facilitates easy installation, significantly improving your overall productivity

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$28.99

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ANCIMOON

ANCIMOON 72PCS JIC Cap and Plug Set, 37 Degree Flare Threads Hydraulic Hose Fittings, Carbon Steel, Size 4 6 8 10 12 16

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•These caps and plugs are mainly for use in blocking off hoses and fittings, but with additional seals, the male plugs can be used to block off the female ports. They are something that will always be needs so that you can quickly stop a leak from getting everywhere.
•JIC (37° Flare) caps and plugs kit comes housed in an extreme-duty waterproof plastic case. It features 72 carefully selected, high-quality caps and plugs covering an extensive range of repair solutions in sizes -4 (1/4”), to -16 (1”).
•Meet or exceed SAE standards for hydraulic applications. And the precision-engineered standard threading to install smoothly, seal your hoses, tubes, and pipes hermetically.
•Structural steel to withstand high heat&pressure and galvanized to anti-rust and anti-corrosion in even punishing environments. This makes the fittings suitable as aerospace adapters, in chemical processing plants, agriculture, trucks, and more.
•The hydraulic adapter stored in a durable case and there is a label on the surface to show the sizes and numbers, so you don't have to worry about friction and damage during transportation. The case is also convenient for you to carry and store the rest fittings.
•Note: Due to the heavy weight of this product, the packaging may be damaged during transportation. If this happens, please contact us.

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$55.99

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gomjet

GOMJET 160 PC JIC and ORFS Master Industrial Hydraulic Cap and Plug Hose Tube and Pipe Fitting Kit Cap and Plug Kit Precision Threading in ORFS and 37° Dash Sizes 4 6 8 10 12 16

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Extensive Variety: With sizes #4, #6, #8, #10, #12, and #16, this kit is equipped to handle any hydraulic task, making it an essential addition to your toolkit.
•Exceptional Compatibility: Engineered to integrate seamlessly with a broad spectrum of hydraulic equipment, ensuring reliable performance across different systems.
•Exceptional Compatibility: Engineered to integrate seamlessly with a broad spectrum of hydraulic equipment, ensuring reliable performance across different systems.
•Built to Last: Made from high-quality carbon steel and galvanized with zinc, our caps and plugs are designed to resist rust and corrosion, providing long-lasting durability and performance.
•Exceeds Standards: Gomjet’s hydraulic cap and plug kit surpasses ordinary hydraulic standards, ensuring that you receive the highest level of quality and reliability for your hydraulic maintenance and repair needs.

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$111.99

$139.99

-20%

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Mess Stopper

Mess Stopper™ Universal Hydraulic Oil Line Service Rubber Plugs and Caps Kit, 2 Large, 4 Medium Size, 4 Small, Round

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Simply push and twist to insert. For unpressurized systems only. No need to keep or search for the right size plug or cap – Mess Stopper fits a wide range of sizes. Operating temperature: -10⁰F to 200⁰F or -23⁰C to 93⁰C.
•This service plug kit includes 2 large, 4 medium, and 4 small size plugs. Small size fits hole size range: 3/64” to 1/2” or 1mm to 13mm in diameter. Medium size fits hole size range: 5/16” to 1” or 8mm to 26mm in diameter. Large size fits hole size range: 1/2” to 1-1/2” or 12mm to 38mm in diameter. Includes a slider zip bag to keep your Mess Stopper clean during storage.
•Prevents oil leaks and waste. Keeps equipment and oil clean during servicing. High visibility "Hi-Viz" green/yellow color helps to remind you of the unconnected hoses, ports, and fittings during reassembly. Fits hoses, tubing, pipes, ports, and many types of fittings including JIC 37⁰ flare, 45⁰ flare, push-on, and SAE O-ring. May be cut to desired length with a utility knife or scissors. For industrial, commercial, and DIY use.
•Mess Stopper is made of oil-resistant NBR rubber and silicone-free. It is resistant to most fluids such as conventional and synthetic lubricating and hydraulic oils, transmission fluids, pure gasoline, diesel fuel, ethylene glycol coolants, and water. It has short-term resistance to ethanol blended fuel and brake fluids. To ensure compatibility, always test the Mess Stopper for fluid resistance by immersing it in the fluid and observing for degradation.
•U.S. Patent D941,882. Mess Stopper is a U.S. registered trademark of Vibrant Yard Company LLC.

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$18.99

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AQUAAULOS

64 Pcs. JIC 37° Flare Thread Cap & Plug Assortment Kit, Seal Adapter Set for Hydraulic Hose Tube and Pipe, SAE AN Fittings, Galvanized Carbon Steel with Precision Threading, Dash Sizes 4 6 8 10 12 16

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•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 brand, 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.
•WIDE RANGE OF APPLICATIONS: Our hydraulic cap and plug kit are designed for intense industrial settings, being able to withstand high PSI pressure levels and temperatures, even in extreme operating environments. This hydraulic cap and plug kit are great to use in test-point and diagnostic settings and in fluid power and fuel delivery applications, especially those using high pressure. This makes the fittings suitable as aerospace adapters, in chemical processing plants, agriculture, trucks, and more.
•COMPREHENSIVE & COST-EFFECTIVE KITS: We have assembled this kit, based on our years of experience, to include the six most used caps and plugs sizes: #4 (7/16-20), #6 (9/16-18), #8 (3/4-16), #10 (7/8-14), #12 (1 1/16-12), #16 (1 5/16-12). All 64 pieces will be packed in sturdy, transparent, impact-resistant cases; they can be used as a storage box, keeping the set secure and organized. To compete with leading brands, we ensure that our hydraulic cap and plug kit is economically priced while still being fully effective. You don't have to break the bank when you purchase your fittings kit in whichever industry you work in.

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$54.99

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AKM

AKM 160 PC JIC and ORFS Master Industrial Hydraulic Cap and Plug Hose Tube and Pipe Fitting Kit Cap and Plug Kit Precision Threading in ORFS and 37° Dash Sizes 4 6 8 10 12 16

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Most Commonly Usued Size:JIC & ORFS 4, 6, 8, 10, 12, and 16.It can meet most of your needs.
•Application：Our AKM hydraulic jic plug and cap kit are made from 45# structural steel widely used in agriculture, contruction,mining and fuel industries for high pressure fuel delivery and fluid power applications,seal hoses, tubes, and pipes.
•Equipped with high-quality plastic outer box, with accessories parameter table.
•Build to last:160 pcs caps and plugs kit made from super strong material and special process treatment have greatly extended the service life of our products, with excellent sealing ability and corrosion resistance.
•If the box is damaged during transit, please contact us for assistance.
•We have recently upgraded our products. If you receive the old packaging (144 pieces), please contact us with a photo of what you get, and we will solve the problem for you.

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$84.55

$103.00

-18%

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ANCIMOON

ANCIMOON 144PCS Hydraulic JIC 37 Degree and ORFS Flat Face Cap and Plug Assortment Kit, Size 4 6 8 10 12 16 for Hose Pipe Tubing, 36PCS Replacement O-Ring Seal Included

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•This package including 2 type of cap and plug set, 72pcs JIC 37° Flare Thread cap and plug set with 7/16-20, 9/16-18, 3/4-16, 7/8-14, 1 1/16-12, 1 5/16-12 Size and 72pcs O-Ring Seal cap and plug with 9/16’’-18, 11/16’’-16, 13/16’’-16, 1’’-14, 1-3/16’’-12, 1-/7/16’’-12 UNF threads size.
•These caps and plugs are mainly for use in blocking off hoses and fittings, but with additional seals, the male plugs can be used to block off the female ports. They are something that will always be needs so that you can quickly stop a leak from getting everywhere.
•Structural steel to withstand high heat&pressure and galvanized to anti-rust and anti-corrosion in even punishing environments. This makes the fittings suitable as aerospace adapters, in chemical processing plants, agriculture, trucks, and more.
•The hydraulic adapter stored in two durable case and there is a label on the surface to show the sizes and numbers, so you don't have to worry about friction and damage during transportation.
•Meet or exceed SAE standards for hydraulic applications. And the precision-engineered standard threading to install smoothly, seal your hoses, tubes, and pipes hermetically.
•Note: Due to the heavy weight of this product, the packaging may be damaged during transportation. If this happens, please contact us.

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$109.99

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AKM

AKM 180 PC JIC and ORFS Master Industrial Hydraulic Cap and Plug Hose Tube and Pipe Fitting Kit Cap and Plug Kit Precision Threading in ORFS and 37° Dash Sizes 4 6 8 10 12 16

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Comprehensive Range: Our kit meets and exceeds industry standards for your propertyThis meticulously organized set includes all the essential models, ensuring you have the right plug for every job. The variety within the set covers a broad spectrum of hydraulic applications, providing a complete and ready-to-use solution. It features JIC & ORFS sizes 4, 6, 8, 10, 12, and 16.
•Durability and Strength: Crafted from 45# structural steel, these hydraulic plugs are designed to withstand tough conditions and ensure long-lasting performance. The robust construction guarantees durability, making them a reliable choice for any hydraulic system. They are widely used in agriculture, construction, mining, and fuel industries for high-pressure fuel delivery and fluid power applications, effectively sealing hoses, tubes, and pipes.
•Versatile Compatibility: Our hydraulic plug set boasts strong compatibility with major brands on the market. Whether you're working with established industry names or diverse equipment, these plugs seamlessly integrate, ensuring a secure fit and optimal functionality.
•Ease of Use: Each plug is designed for easy installation and removal, simplifying your workflow and saving you time. The set comes in a high-strength blow-molded box, which is stronger and more durable than ordinary plastic boxes and resistant to breaking. All caps and plugs are uniformly placed inside the box and equipped with eye-catching markings, ensuring efficient organization and accessibility.

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$132.04

$139.00

-5%

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AKM

AKM 160 PC JIC and ORFS Master Industrial Hydraulic Cap and Plug Hose Tube and Pipe Fitting Kit Cap and Plug Kit Precision Threading in ORFS and 37° Dash Sizes 4 6 8 10 12 16

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Comprehensive Range: Our kit meets and exceeds industry standards for your propertyThis meticulously organized set includes all the essential models, ensuring you have the right plug for every job. The variety within the set covers a broad spectrum of hydraulic applications, providing a complete and ready-to-use solution. It features JIC & ORFS sizes 4, 6, 8, 10, 12, and 16.
•Durability and Strength: Crafted from 45# structural steel, these hydraulic plugs are designed to withstand tough conditions and ensure long-lasting performance. The robust construction guarantees durability, making them a reliable choice for any hydraulic system. They are widely used in agriculture, construction, mining, and fuel industries for high-pressure fuel delivery and fluid power applications, effectively sealing hoses, tubes, and pipes.
•Versatile Compatibility: Our hydraulic plug set boasts strong compatibility with major brands on the market. Whether you're working with established industry names or diverse equipment, these plugs seamlessly integrate, ensuring a secure fit and optimal functionality.
•Ease of Use: Each plug is designed for easy installation and removal, simplifying your workflow and saving you time. The set comes in a high-strength blow-molded box, which is stronger and more durable than ordinary plastic boxes and resistant to breaking. All caps and plugs are uniformly placed inside the box and equipped with eye-catching markings, ensuring efficient organization and accessibility.
•We have recently upgraded our products. If you receive the old packaging (144 pieces), please contact us with a photo of what you get, and we will solve the problem for you.

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$123.49

$129.99

-5%

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Venussar

Venussar 56 Pcs BSPP Cap and Plug Kit, Hydraulic Cap and Plug Kit with Precision Threading, Galvanized Steel Hydraulic Fitting Adapter Kit, Dash Sizes 02/04/06/08/10/12/16

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•【Compatibility】Dash Sizes 02/04/06/08/10/12/16; the BSPP hydraulic fittings kit includes a range of plugs suitable for different diameters and types of pipe connections, ensuring comprehensive coverage for various pipes and tubes.
•【Reliable Sealing Performance】The BSPP hydraulic cap and plug kit offer a versatile range of sealing solutions for hydraulic systems, suitable for liquid and gas transfer systems, as well as hydraulic systems, effectively preventing leaks and pressure loss.
•【Durable Materials】Made of galvanized steel, retains the strength and rigidity of the base steel, provides reliable protection for hydraulic connections.
•【Easy Identification&Organization】Ours BSPP hydraulic cap and plug kit is organized and labeled for easy identification of cap and plug sizes; this facilitates the rapid and accurate selection of the correct sealing components, improving efficiency and minimizing downtime.
•【Leak Prevention】With a secure fit for hydraulic ports and connections, the kit effectively prevents fluid leaks during maintenance procedures or transport.

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$53.99

$56.99

-5%

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