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BEST SELLER
Zoom LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
View LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler
LockNLube® Grease Gun Coupler

LockNLube® Grease Gun Coupler

SKU: GC81011

🚚 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
2542 reviews
$32.99
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Spare Rebuild Kit: WITH a Spare Rebuild KIt
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This item ships FREE!

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, or manual, including Milwaukee®, Dewalt®, Lincoln®, and more! Simply remove the stock coupler and replace it with the LockNLube®.
  • Grease goes in, not on, the machine
  • Works on all Zerk fittings, SAE and metric
  • 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.

    This item ships FREE!

    LockNLube® Grease Gun Coupler

    $32.99

    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.

    It works with all major grease gun brands—Lincoln, 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!


     

    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.
    Customer Reviews
    4.9 Based on 2,633 Reviews
    5 ★
    95% 
    2513
    4 ★
    3% 
    82
    3 ★
    1% 
    17
    2 ★
    0% 
    5
    1 ★
    1% 
    16
    Customer Photos
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    DP
    05/26/2025
    Donnie P.
    United States

    The coupler is exactly what I needed to help with difficult fittings.

    DC
    05/26/2025
    David C.
    United States

    Excellent product

    It is everything you described in your video. I love this product. I'm changing all my grease guns over to this coupler.

    CM
    05/20/2025
    Cam m.
    Canada

    Short life

    First got one to be able to use on standard and metric zerks. First one was perfect. The next couple were good, the last 3 I purchased are junk! They last maybe 3 months and then do not attach good enough to enable greasing. I have tried rebuilding them. Same poor performance 😤. Sadly these were great when they came Out and now are just expensive short term solutions.

    L
    05/18/2025
    lee SVG verified by SHOP
    United States

    Works great

    P
    05/15/2025
    Paul SVG verified by SHOP
    United States

    Works great!would buy again for sure