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BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
BEST SELLER
Zoom LockNLube® Grease Gun Coupler
2517 reviews

LockNLube® Grease Gun Coupler

$32.99
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🚚 This item includes FREE shipping

  • Completely hands-free and leak-free lock
  • Easily disconnects, even under pressure
  • Works on all Zerk fittings, SAE and metric
SKU: GC81011
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End greasing frustration with the original locking grease coupler!

  • Locks on, stays on, won't leak. Rated up to 10,000 PSI
  • Easily disconnects, even under pressure. No more broken Zerks
  • 1/8" NPT compatible with all grease guns - battery, pneumatic, manual
  • Grease goes in, not on, the machine
  • Works on all Zerk fittings, SAE and metric
  • Includes a rebuild kit! The LockNLube® is the world's only rebuildable grease coupler. Lowest lifetime cost.
  • Patented Locking Technology. US Patent #8955544
  • As seen on TruckU on the Motortrend Channel!

6 reasons why people are switching to the LockNLube® Grease Coupler 🎉


Also available with a 2" longer barrel for those deeply recessed fittings! Click here to purchase your XL Coupler from LockNLube.

    Need a longer barrel for extra reach?

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

    $41.99

    This item ships FREE!

    LockNLube® Grease Gun Coupler

    $32.99

    WHAT’S INCLUDED IN THE GREASE COUPLER REBUILD KIT

    Free US Shipping Over $25 • Money Back Guarantee

    The best grease gun I have ever used

    "LockNLube revolutionized how we handle machinery maintenance; no leaks, no mess, just efficiency. Absolutely recommend!"

    Chris C. Verified Buyer

    End greasing frustration with the LockNLube® Grease Coupler—the ultimate solution for leak-free greasing. Compatible with all grease guns and grease fittings, it locks on, stays on, and won't pop off under pressure. That means less mess, and less wasted grease.

    With its unique sliding sleeve and thumb lever, the LockNLube® Grease Coupler easily locks its four steel jaws onto the Zerk fitting, creating a secure, leak-proof seal. And when you’re done, a simple press of the thumb lever releases the coupler—even under pressure. The perfect solution to greasing recessed fittings that make removing your coupler a zero-breaking chore.

    The LockNLube® Grease Coupler is fully rebuildable. If it ever starts to leak, just replace the seal and jaws, and it’s as good as new. We even include a free rebuild kit with every purchase, and additional kits are available in our store.

    It works with all major grease gun brands—LLincoln, Milwaukee, DeWalt, John Deere, Alemite, Pleas, Legacy, and many more—so you know it’s the right fit for your tools.

    Ready to experience the difference? Click here to see video reviews and read customer comments, and get your LockNLube® Grease Coupler today!



    LockNLube® Grease Coupler Care & Maintenance:

    Check out our YouTube channel for an easy method to clean dirt and grit out of your coupler. This will extend the life of the seal, which means longer use time between rebuilds. If you find your coupler starting to leak, try this cost-saving tip before you put a rebuild kit in it.

    Consider using a Coupler Cap and Zerk Fitting Caps to keep your equipment clean.

    Product Info
    SKU: GC81011

    End greasing frustration with the LockNLube® Grease Coupler—the ultimate solution for leak-free greasing. Compatible with all grease guns and grease fittings, it locks on, stays on, and won't pop off under pressure. That means less mess, and less wasted grease.

    With its unique sliding sleeve and thumb lever, the LockNLube® Grease Coupler easily locks its four steel jaws onto the Zerk fitting, creating a secure, leak-proof seal. And when you’re done, a simple press of the thumb lever releases the coupler—even under pressure. The perfect solution to greasing recessed fittings that make removing your coupler a zero-breaking chore.

    The LockNLube® Grease Coupler is fully rebuildable. If it ever starts to leak, just replace the seal and jaws, and it’s as good as new. We even include a free rebuild kit with every purchase, and additional kits are available in our store.

    It works with all major grease gun brands—LLincoln, Milwaukee, DeWalt, John Deere, Alemite, Pleas, Legacy, and many more—so you know it’s the right fit for your tools.

    Ready to experience the difference? Click here to see video reviews and read customer comments, and get your LockNLube® Grease Coupler today!



    LockNLube® Grease Coupler Care & Maintenance:

    Check out our YouTube channel for an easy method to clean dirt and grit out of your coupler. This will extend the life of the seal, which means longer use time between rebuilds. If you find your coupler starting to leak, try this cost-saving tip before you put a rebuild kit in it.

    Consider using a Coupler Cap and Zerk Fitting Caps to keep your equipment clean.

    Key specs
    Max pressure 10,000 psi (690 Bar)
    Zerk Compatibility Fits all DIN and SAE specification Zerks (grease nipples).
    Coupler Thread ⅛” NPT female thread.
    Dimensions L: 3½ x W: 5/8 x H: 1⅗ In (L: 88mm x W: 16mm x H: 41 mm)
    Diameter (front of coupler) 5/8 in (16 mm). Fits most recessed grease fittings (Zerks). ~1mm larger than standard coupler
    Weight 4 oz. (100 grams)
    Grease Gun Compatibility Works with all grease gun types: pneumatic, manual, and electric.
    Seal Durable nitrile rubber seal for longevity under high pressure
    Lock-on Mechanism Four hardened steel jaws are resilient under high pressure. Patent protected.
    Patent US Patent #8,955,544
    Downloads

    Trying to remove your old coupler and attach the LockNLube® Grease Coupler? Click here.

    LockNLube Grease Coupler Spec Sheet

    Illustrated Rebuild Kit Replacement Instructions

     

    CARE & MAINTENANCE

    Check out our YouTube channel for an easy method to clean dirt and grit out of your coupler. This will extend the life of the seal, which means longer use time between rebuilds. If you find your coupler starting to leak, try this cost-saving tip before you put a rebuild kit in it.
    Consider using a Coupler Cap and Zerk Fitting Caps to keep your equipment clean.

    Grease Coupler Cap

    Grease Fitting Caps (50 count)

    SHIPPING & RETURNS
    • Shipping options are available at checkout
    • All of our orders ship out of either our Illinois or New Hampshire warehouse within 3 business days.
    • Shipping carrier varies by size and weight of the package.
    • LockNLube's shipping department operates Monday through Friday, 8 am to 2 pm EST except for holidays.

    Over 20,000 Five-Star Reviews

    OVER 2.3K+ 5-STAR CUSTOMER REVIEWS

    "I highly recommend LockNLube. Great product and unbelievable customer service!"

    James W. Verified Customer Dallas, TX

    "I loved my first so much a bought a second. Don’t even worry about shopping around. This Is Your Grease Gun!!"

    Ben H. Verified Customer Dallas, TX

    "Greatest thing since the invention of the aluminum beer can ... won't own a grease gun without it"

    Chris C.

    A CLOSER LOOK AT THE GREASE COUPLER

    1. Hardened spring steel jaws
    • Hands-free, leak-free lock system
    • Durable, high-pressure nitrile rubber seal
    • Fits all Metric, DIN, and SAE Zerks
    2. Spring-load thumb lever
    Non-slip, easy release even under pressure
    3. 1/8” NPT female thread
    Standard size that fits most grease guns

    WORLD’S Only Rebuildable Grease Coupler

    Built to last and work flawlessly, the LockNLube® Grease Coupler saves you money over time by being rebuildable. Instead of buying a new one, you can easily refresh it for more use.

    NOT FULLY SATISFIED?

    Our products are designed to outperform and outlast any other. Return within 1 year for a full refund, no questions asked.

    KEY SPECIFICATIONS

    Max pressure 10,000 psi (690 Bar)
    Zerk Compatibility Fits all DIN and SAE specification Zerks (grease nipples).
    Coupler Thread ⅛” NPT female thread.
    Dimensions L: 3½ x W: 5/8 x H: 1⅗ In (L: 88mm x W: 16mm x H: 41 mm)
    Diameter (front of coupler) 5/8 in (16 mm). Fits most recessed grease fittings (Zerks). ~1mm larger than standard coupler
    Weight 4 oz. (100 grams)
    Grease Gun Compatibility Works with all grease gun types: pneumatic, manual, and electric.
    Seal Durable nitrile rubber seal for longevity under high pressure
    Lock-on Mechanism Four hardened steel jaws are resilient under high pressure. Patent protected.
    Patent US Patent #8,955,544
    Customer Reviews
    4.9 Based on 2,517 Reviews
    5 ★
    96% 
    2408
    4 ★
    3% 
    78
    3 ★
    1% 
    15
    2 ★
    0% 
    4
    1 ★
    0% 
    12
    Customer Photos
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    Filter Reviews:
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    D
    10/03/2024
    Dave SVG verified by SHOP
    United States United States

    Excellent tool

    WJ
    09/28/2024
    Walter J.
    United States United States

    Frustration ended!

    My grease gun hose is kind of short and with the regular coupler I had to try to hold it on the zerk with one hand and get the gun against something to pump the handle. Now I can use both hands and so far it hasn't leaked or came off the zerk. It is a bit longer than the old one so I had to change one zerk to 90 degrees to get it in. but that's minor.

    KM
    09/24/2024
    Ken M.
    United States United States

    I bought a Dewalt battery grease gun with a locking head, I lost 4 tube's of grease with lockhlube 1 zero gave me an issue. (slight)

    RC
    09/16/2024
    Ryan C.
    United States United States

    Serves it’s purpose

    Works as intended. Still have excess grease coming out between the finger. It’s definitely easier to grease just equally as messy.

    WL
    09/15/2024
    Wiliam L.
    United States United States

    Works as advertised

    So far I am very pleased with the lock lube. Once it is locked on the fitting does not allow any leakage.

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