10 Best Grease Coupler Grease Guns of 2025

Tested and Reviewed: Top 10 Grease Coupler Grease Guns deals with expert ratings from 8.1 to a perfect 10

July 2025 Edition

Editor's Choice

9.7

LockNLube

LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings

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Editor's bottom line:

“This grease coupler grease guns is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Rated to 10,000 PSI! Locks on, stays on. Does not leak once locked on.
Hands free - does not pop off under pressure. Easily release from fittings with the thumb lever, even at extreme pressure.
Fits all standard Grease Guns - 1/8 NPT fitting. Fits all SAE and Metric Zerk fittings. Simply replace your existing coupler.
Over 3.5" of reach. Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.
Includes rebuild kit. Easily replace seal and jaws without replacing the coupler.

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Picked by 289 people today

9.5

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.

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Main Highlights

LOCKS ON, STAYS ON, WON'T LEAKLIKE 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 grease gun tips for the price of one.
1/8" NPT COMPATIBLE WITH ALL GREASE GUNS - BATTERY, PNEUMATIC, MANUAL: Whether you are using Grandpas 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! RATED UP TO 10,000 PSI
EASY TO USE: Press the thumb lever to open the LockNLubes 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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9.5

Save 12%

THINKWORK

THINKWORK Grease Gun Coupler Set, Strong Lock on Greases Gun Couplers with 90° Grease Coupler Adaptor,12000 PSI Quick Release Grease Coupler Compatible with All Grease Guns 1/8" NPT Grease Gun Fitting

12% OffFree Shipping

Main Highlights

You'll Get - 0.53"Grease Gun Coupler, 90° Grease Coupler Adaptor, 12" Spring Flex Hose, Cleaning Tool, save your money and be efficient!
Design Ideas - Our grease gun coupler is currently the smallest on the market with a diameter of only 0.53 inches and can be used in confined spaces. Designed with a single-lever for easy one-handed operation, you can easily and quickly lock and release.
Upgrade Locking & Sealing - With the exclusive patent in the United States, THINKWORK upgraded grease gun coupler adopts upgraded powerful patented 6-jaw structure. With reinforced jaws & high-quality aviation-grade sealing gaskets, Tested at 12000 PSI pressure also prevents leaks.
Fit All 1/8 NPT Fittings - Portable grease gun coupler are works on all DIN and SAE grease fittings and attaches to all 1/8 NPT standard grease guns, mini grease guns, pneumatic grease gun and electric grease gun.
Wide Application - Our grease gun tool best choice for all-day performance in commercial shops, auto centers and any home garage. Perfect for use in automotive repair, job site large machinery and axles and drive trains. It is also ideal for lubricating farm tractors, plows, stump pullers, disc rakes, seeders, etc.

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9.2

AORRZER

AORRZER Grease Gun Coupler, Strong Lock on Greases Gun Couplers, 12000 PSI Quick Release Grease Coupler with 12" Spring Flex Hose, Compatible with All Grease Guns 1/8" NPT Grease Gun Fitting(1 PCS)

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Main Highlights

Upgrade grease couplerAORRZER grease gun coupler with 12 Inch Spring Flex HoseUpgrade-strong 6-jaw coupler, grease gun coupler reinforced jaws and quality sealing gasket ensure long lasting and stable performance tighter and no oil leakage,Use testing: Leak prevention even when tested at extreme pressures of 12,000 PSI or higher.
High quality and sturdyThe grease gun coupler is made of upgraded material alloy steel, optimizing the thickness of the steel and upgrading the 6-jaw bite lock on the original basis, quality steel, quality design principle, Wear-resistant and durable Long life span, Lowest lifetime cost, believe me, this will be your best choice!!
Simple operationGrease gun coupler with smooth strong 6-jaw bite lock on function allows one-handed operation, no need to hold when lubricating, after locking the grease gun coupler, you can free your hands to operate the grease gun.
Wide applicationgrease gun coupler fits all 1/8" NPT standard grease gun, Pneumatic Grease Gun, manual grease gun, electric grease gun, also suitable for all DIN and SAE grease nipples and all SAE and metric Zerk joints. Simply replace your existing grease gun coupler and this Strong grease gun tool is ready for use in automotive repair, job site large machinery and axles and drive trains, it is also great for lubricating farm tractors, plows, stump pullers, disc harrows, seeders and more.
Customer Service AORRZER promises to provide you with a 1-year warranty, as long as you choose the AORRZER grease gun coupler in the use of any problems encountered in the process can always contact us, we will provide you with 24-hour service, so that you have a family-like feeling!
Reasons to choose AORRZERWith AORRZER grease gun coupler you not only have a new upgraded and enhanced version (high pressure, leak-proof, fast grease filling, optimized steel thickness, 6-jaw bite lock, one-hand operation, lowest lifetime cost) but also the coupler fits all 1/8" NPT standard grease gun fitting, we also promise a 1-year warranty, so you can be assured that this will be your best choice

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9.0

COMVIEE

COMVIEE Grease Gun Coupler, Double Handle Quick Lock Release Grease Tips Ends Couplers, Rated 10,000 PSI, Compatible with All Grease Guns 1/8" NPT Fittings, 1-PC

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Main Highlights

LOCKING AND SEALING: Grease gun coupler 6 jaw design snaps on and off grease fittings easier, reinforced jaws and quality sealing gasket ensure long lasting and stable performance, does not leak even at 10,000 PSI extreme pressure.
HIGH QUALITY: Built with premium quality Zinc Coated Alloy Steel for all-day performance in the indoor and outdoor, stable and reliable.
ONE HAND OPERATION: Double handle with anti-slip design and smooth retraction mechanism allows one-hand operation, easy installation/removal. Once locks onto zerk fitting, it stays on and frees both hands to operate the grease gun.
WIDE APPLICATION: Compatible with All 1/8" NPT standard, mini, battery, pneumatic, manual Grease Guns and Zerk Fittings, it also fits all DIN and SAE grease fittings, simply replace your existing grease gun couplers.
AFTER-SALE SERVICE: We provides a one-year warranty, if you have any questions, Please feel free to contact us by email, we will deal with you within 12 hours.

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Best Value

8.8

Save 43%

DEWALT

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

43% OffFree Shipping

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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8.6

FIXSMITH

FIXSMITH Grease Gun Coupler, Heavy Duty Strong Quick Release Grease Gun Tips Locking, 10000 PSI High Pressure Locking Grease Gun Tips, Compatible with All Grease Guns 1/8" NPT Fittings

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Main Highlights

LOCK AND SEALFIXSMITH professional grease gun coupler features an innovative exclusive patented design, delivering utmost safety and reliability with its exceptional quality assurance. Its reinforced 3 jaws and unique sealing gaskets ensure a secure connection to Zerk fittings, preventing grease gun tips from detaching and effectively eliminates any risk of leakage even under high pressure of up to 10000PSI.
ROBUST HIGH QUALITYGrease gun locking is constructed with galvanized alloy steel, ensuring durability and strength. The non-slip handle provides a secure grip during use. These high-quality tips offer exceptional performance and are designed to withstand all-day grease jobs in the workshop or garage.
SIMPLE OPERATIONGrease gun coupler tips with a non-slip handle, its 360-degree rotatable function makes it more convenient for one-handed operation. Operation Steps : Please press the matte handle while greasing and reinforced 3 jaws will shrink inward to ensure that Zerk fittings can be connected together. Seal design locks securely onto fittings for heavy duty applications. Once the grease coupler is locked on Zerk fitting, you can free your hands to operate the grease gun.
WIDE APPLICATIONFIXSMITH grease gun coupler is suitable for auto vehicles, bridge maintenance, site heavy duty machinery, agricultural machinery including tractors, plows, pile pullers, disc harrows, seeders. Grease coupler locking plays an indispensable role in maintaining and lubricating machines, fits all 1/8" NPT standard grease guns including pneumatic manual electric. Grease gun tool is applicable to all Zerk fittings, SAE and metric, preventing leakage even under high pressure.

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8.3

luckywagon

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

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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 delaysjust a quick and easy replacement process, ensuring your satisfaction

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8.1

Save 6%

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

6% OffFree Shipping

Main Highlights

PROFESSIONAL DESIGNDouble 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 OPERATIONThe 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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8.1

Smlirop

Grease Gun Tips,Grease Gun Coupler, Lock n Lube Grease Gun Coupler, Grease Fittings, Grease Gun Fittings, 12000 PSI Leak Proof Design Dual Handle for All 1/8" NPT Grease Guns

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Main Highlights

Effective Grease DispensingEnhance machine performance and lifespan with the help of a reliable grease gun coupler. Our leak-proof lock and lube grease gun coupler ensures a tight lock onto grease fittings, preventing messy spills and guaranteeing impeccable lubrication even under pressures of up to 12,000 PSI. Experience frustration-free greasing and maintain a clean workspace.
Compact and VersatileOur grease gun fittings feature a slim 14mm barrel diameter, allowing easy access to tight spaces. The lock and lube grease coupler effortlessly navigates confined environments, making it a valuable addition to any grease gun. Its universal compatibility with an extensive range of grease gun tips, including battery-operated, pneumatic, and manual tools, ensures seamless integration across diverse applications.
Simple and EfficientWith intuitive dual handles and a smooth retracting mechanism, our grease gun tip coupler offers a user-friendly experience. Its locking mechanism securely holds onto the ferrule fitting, freeing both hands for expert grease gun handling. Save time and effort while streamlining your work process with our easy-to-operate lock and lube grease coupler.
High-Quality and DurableOur grease gun coupler boasts a professional design featuring a 6-claw coupler for a tighter, leak-proof connection. Crafted from high-quality carbon steel with a corrosion-resistant galvanized surface, it ensures durability and a longer service life. The high-strength spring further enhances its longevity, making it a reliable tool for long-term use.
Excellent After-Sales SupportWe take pride in delivering a grease gun coupler that embodies the lock and lube spirit. Our dedicated team is committed to providing prompt and satisfactory after-sales support. Should you have any questions or concerns regarding the grease gun tip lock, please contact us via email. We aim to respond within 12 hours and prioritize your contentment and seamless lubrication experience.

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Our Best Overall Choice

Best Choice

9.7

LockNLube

LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Rated to 10,000 PSI! Locks on, stays on. Does not leak once locked on.
Hands free - does not pop off under pressure. Easily release from fittings with the thumb lever, even at extreme pressure.
Fits all standard Grease Guns - 1/8 NPT fitting. Fits all SAE and Metric Zerk fittings. Simply replace your existing coupler.
Over 3.5" of reach. Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.
Includes rebuild kit. Easily replace seal and jaws without replacing the coupler.

Show Price

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