Top 10 Best grease coupler in 2026

Last Updated - 6/10/2026

🏆Best Choice

LockNLube

LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. World's best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•LOCKS ON, STAYS ON, WON'T LEAK—LIKE HAVING AN EXTRA HAND! No need to hold the coupler in place while trying to grease your machinery. The LockNLube Grease Coupler locks on tight and lets you use both hands on your grease gun.
•THE ONLY REBUILDABLE LOCKING COUPLER: We include a spare rebuild kit! It's like getting two couplers for the price of one.
•1/8" NPT COMPATIBLE WITH ALL GREASE GUNS - BATTERY, PNEUMATIC, MANUAL: Whether you are using Grandpa’s old Alemite lever grease gun, or the latest battery or pneumatic grease guns, the LockNLube Grease Coupler can be added to upgrade your grease gun.
•WORKS ON ALL ZERK FITTINGS, SAE & METRIC with a full lineup of adapters to reach any grease fighting on any machine!
•EASY TO USE: Press the thumb lever to open the LockNLube’s patented jaws and attach to the Zerk. Release the thumb lever and the LockNLube locks on tight! Press the thumb lever again to easily release from the Zerk, even under pressure!
•RATED UP TO 10,000 PSI
•BEST BUILT GUARANTEE: The LockNLube Grease Coupler is covered by our unconditional 1-year warranty

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$34.99

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LockNLube

LockNLube Grease Coupler (NPT No Spare Rebuild Kit)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•LOCKS ON, STAYS ON, WON'T LEAK—LIKE HAVING AN EXTRA HAND! No need to hold the coupler in place while trying to grease your machinery. The LockNLube Grease Coupler locks on tight and lets you use both hands on your grease gun.
•THE ONLY REBUILDABLE LOCKING COUPLER: Lowest Lifetime Cost
•1/8" NPT COMPATIBLE WITH ALL GREASE GUNS - BATTERY, PNEUMATIC, MANUAL: Whether you are using Grandpa’s old Alemite lever grease gun, or the latest battery or pneumatic grease guns, the LockNLube Grease Coupler can be added to upgrade your grease gun.
•WORKS ON ALL ZERK FITTINGS, SAE & METRIC with a full lineup of adapters to reach any grease fighting on any machine!
•EASY TO USE: Press the thumb lever to open the LockNLube’s patented jaws and attach to the Zerk. Release the thumb lever and the LockNLube locks on tight! Press the thumb lever again to easily release from the Zerk, even under pressure!

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$29.99

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LockNLube

LockNLube 90 Degree Grease Coupler Adapter

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Spring-loaded collar for extra-sturdy connection
•Easily connect to LockNLube and other couplers when needed
•Three hardened steel jaws, rubber seal, and check valve make a tight, reliable connection
•90 degree right angle adapter
•Perfect for tight spaces and hard-to-reach fittings

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$16.99

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luckywagon

Grease Gun Coupler Grease Gun Tips Grease Fittings, Double Handles, Quick Lock Release, High Pressure 10,000 PSI, 6 Thickened Jaws Grease Coupler, Compatible with All 1/8" NPT Grease Guns

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•ENHANCED LOCKING & SEALING: The LUCKYWAGON grease gun coupler features a reinforced 6-jaw design for quick and secure attachment to grease fittings, ensuring a tight seal without leaks even at pressures up to 10,000 PSI. This tight seal prevents grease spillage, keeping your workspace clean and reducing waste
•ERGONOMIC DUAL-HANDLE DESIGN: LUCKYWAGON grease gun quick release coupler's dual-handle design allows for easy one-handed operation after locking, streamlining the lubrication process by reducing the need for continuous manual adjustments. This ergonomic design can save up to 50% of effort during operation, making it perfect for extended use
•HIGH-QUALITY AND BUILT TO LAST: Crafted from premium alloy steel, LUCKYWAGON grease gun tips are corrosion-resistant and built to withstand tough environments. The high-strength spring adds durability and longevity, making this grease gun tip ideal for heavy-duty applications in automotive and industrial settings
•VERSATILE COMPATIBILITY: Compatible with all 1/8" NPT standard grease guns, LUCKYWAGON grease gun fittings can be used with mini grease guns, pneumatic grease guns, and manual grease guns. It is suitable for a wide range of applications, including automotive repair, industrial machinery, agricultural equipment, and construction projects
•LIFETIME CUSTOMER-CENTRIC SUPPORT: We offer a lifetime no-hassle replacement service for LUCKYWAGON grease coupler. If you encounter any issues, simply contact us, and we'll send you a new one. No complicated repairs, no delays—just a quick and easy replacement process, ensuring your satisfaction

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$9.99

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DEWALT

DEWALT Grease Gun Coupler, Heavy Duty, NPT, 1/8-Inch, 3-Pack (DCGG5701-3)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•For use with hydraulic type grease fittings
•Max operating pressure up to 10, 000 psi
•Heavy Duty replacement piece
•Item Package Dimension: 3.56" L x 2.94" W x 1.25" H

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$10.91

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LockNLube

Push-on Slotted Right Angle 90 Degree Grease Coupler

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Simply use an adaptor for troublesome grease fittings
•International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
•Alow-profile 90 adaptor for hard-to-reach grease fittings Creates a leak-free seal with your LockNLube Grease Coupler Easily connects to all jaw-type couplers No need to keep different couplers on different grease guns

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$11.99

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Akeoil

Akeoil Grease Gun Coupler, Grease Gun Tips, Grease Gun Accessories, 12000 PSI Leak Proof Design Double Handle Grease Nozzle, Compatible with All 1/8" NPT Grease Guns (2PCS)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•1.STRONG AND SMOOTH INNOVATION: No more struggling when applying grease. Our Lock n Lube Grease Gun Coupler provides a hands-free, leak-free solution for pressures up to 12,000 PSI, and its unique sliding sleeve technology locks the zerk in place, creating a tight, reliable seal.
•2.HIGH DURABILITY AND COMPATIBILITY: Our grease gun fittings are made of rugged zinc-plated alloy steel for all-weather performance and are compatible with 1/8" NPT standard grease guns - pneumatic, manual and electric.
•3.EFFICIENT AND EASY TO USE: Our locking and lubricating grease gun couplings feature a two-handle and 6-jaw design that simplifies operation and can be used with one hand after locking, freeing up both hands to manage the grease gun. Our ergonomic design saves time and effort
•4.WIDE APPLICATION: This grease gun quick coupling fits all DIN and SAE grease gun fittings. It's perfect for automotive repair, large machinery and bearings, agricultural equipment, and many more applications.
•5.LONG TERM VALUE: All of our grease gun fittings are made with quality materials and workmanship for easy maintenance and long life, saving you money in the long run. We offer 6 months return and exchange service, if in doubt, please contact us and our after sales team will get back to you within 24.

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$8.99

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FJXBYWM

Grease Gun Coupler Grease Gun Tips,Quick Lock Double Handles Grease Gun Tip with 6 Thickened Claws,Rated 12,000PSI,Compatible with All Grease Guns,Suitable for Automobiles Ships Farm Machinery Etc.

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•【GREASE GUN COUPLERS LEAK PROOF TIGHT LOCK】: Grease gun coupler boasts a 6 claws design that effortlessly snaps in and out of grease fittings. Grease coupler reinforced claws and premium gaskets guarantee consistent, enduring performance even under pressures of up to 12,000 PSI. Say goodbye to messy grease spills, as this innovative grease coupler maintains a clean workspace and ensures impeccable machinery lubrication.
•【COMPACT GREAES GUN FITTINGS】: Featuring a slim 14mm barrel diameter, our lock and lube grease coupler effortlessly navigates through confined spaces. lock on grease couplers compact design finds its niche in tight environments and serves as a remarkable addition to any grease gun. Say farewell to grease wastage with its locking and easy-release mechanism, revolutionizing your lubrication process.
•【GREASE COUPLER LOCK UNIVERSAL COMPATIBILITY】: Grease gun tips locking is the epitome of versatility. lock on grease gun coupler seamlessly pairs with an extensive range of grease gun fittings and tips , making it the ultimate companion for diverse devices like battery-operated, pneumatic, and manual tools. This adaptable solution caters to various applications from auto repair shops and tractors to construction sites, excavators, bulldozers, and even large scale factory equipment.
•【GREASE GUN TIP COUPLER EASY TO OPERATE】: Grease gun tip coupler intuitive non slip dual handles and smooth retracting mechanism, our locking grease gun coupler becomes a one-hand operation wonder. Once secured onto the ferrule fitting, it remains steadfast, freeing both your hands to expertly handle the grease gun. FJXBYWM lock and lube grease coupler not only saves time and effort but also streamlines your work process.
•【AFTER-SALES SERVICE】:FJXBYWM prides ourselves on delivering a grease gun coupler that truly embodies the lock and lube spirit. If you have any questions about using the grease gun tip lock, please feel free to contact us by e-mail!Our dedicated team is committed to providing a prompt, satisfactory response within 12 hours. Your contentment and seamless lubrication experience remain our utmost priorities.

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$5.19

$6.99

-26%

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Saillong

Saillong Grease Gun Coupler with 1/8 inch NPT Threads, Push on Slotted Right Angle 90 Degree Grease Coupler Fits Standard 1/8 inch NPT Grease Hoses, 2.1 Inch Length

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Size and 1/8 Inch NPT Threads: the size of the grease gun coupler is 2.1 x 0.55 x 0.55 inch and it comes with a 1/8 Inch NPT threads adapter which make it more widely applicable
•Compatibility: this grease gun coupler fits most standard 1/8 inch NPT grease hoses and are compatible with standard handheld grease gun couplers
•No Leak Seal: the right angle grease coupler can easily connects to most jaw type couplers; These couplers stay connected while in use to ensure your grease delivery is no leak and controlled, making even the most difficult to reach lubrication jobs an easy task
•Sturdy Material: the 90 degree grease coupler is made of quality alloy material, which can effectively prevent rust, and the long lasting design can be applied continuously in tough conditions
•Wide Application: the right angle 90 degree grease coupler can support releasing grease to lubricate many places, such as automotive metal parts and industrial machines, to better keep metal parts from rusting

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$7.59

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Akeoil

AKEOIL Grease Gun Coupler, Grease Joint Fittings, 12000PSI High Pressure Grease Nozzle Fittings, Compatible With All 1/8" NPT Grease Guns, For greasing all machinery and equipment filling

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•【PROFESSIONAL DESIGN】Double handle symmetrical design, saving time and effort in the process of use, while the 6-claw coupler design is easier to close and buckle the grease nozzle, tighter, no oil leakage.
•【 HIGH SERENGTH SERVICE LIFE 】Using high quality carbon steel material, surface galvanized treatment, play the role of corrosion and rust prevention, high strength spring to make the work life longer, durable, to achieve the long-term use effect
•【 WIDE RANGE OF APPLICATION 】 Butter gun is suitable for automobile, mechanical equipment maintenance, farm axle and transmission system, truck, industrial equipment maintenance and other hard-to-reach grease parts, also suitable for most manual grease guns, the maximum working pressure of 12000PSI
•【SIMPLE OPERATION】The fat gun coupler has a smooth and powerful 3 jaw locking function, one hand operation, lubrication without need to hold, after locking can liberate your hands, save time and effort, is a good helper for your work
•【AFTER-SALES AND COMMITMENT 】to provide customers with quality products is our pursuit, you have any questions in the process of use please timely communicate with us, our service team will reply to you within 24 hours, give you a satisfactory answer, I wish you a happy shopping

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