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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
2439 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!

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

    The LockNLube® Grease Coupler is compatible with all grease guns and grease fittings. It does not leak once locked on and will not pop off under pressure. No hands are needed to align or hold the coupler in place while greasing. You have both hands free to operate your grease gun and know that the grease will go in, not on, your machine. Guaranteed.

    It has a unique sliding sleeve, activated by a thumb lever. The sleeve locks the four spring-steel jaws onto the Zerk fitting, and releases the jaws by pushing on the thumb lever. When the jaws are locked onto the Zerk, a leak-proof seal is created. The locked connection is positive and rigid preventing the coupler from coming loose and breaking the leak-proof seal. If a fitting becomes pressurized, especially a recessed one, just depress the thumb lever and release the coupler.

    The LockNLube® Grease Coupler is fully rebuildable. If it starts to leak, you simply replace the seal and jaws and it is as good as new. See our tutorial here. We include a free rebuild kit with every coupler that we sell. Additional rebuild kits are also available from our store.

    The LockNLube® Grease Coupler works with all grease gun manufacturers, including Lumax, Alemite, Plews lubrication (Edelman), Granger, SKF, Macnaught, ADT, Milwaukee, John Deere, Wilmar, Legacy, Allstar, Sealey, Draper and many others.

    To see video reviews and read more customer comments, click here.



    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

    The LockNLube® Grease Coupler is compatible with all grease guns and grease fittings. It does not leak once locked on and will not pop off under pressure. No hands are needed to align or hold the coupler in place while greasing. You have both hands free to operate your grease gun and know that the grease will go in, not on, your machine. Guaranteed.

    It has a unique sliding sleeve, activated by a thumb lever. The sleeve locks the four spring-steel jaws onto the Zerk fitting, and releases the jaws by pushing on the thumb lever. When the jaws are locked onto the Zerk, a leak-proof seal is created. The locked connection is positive and rigid preventing the coupler from coming loose and breaking the leak-proof seal. If a fitting becomes pressurized, especially a recessed one, just depress the thumb lever and release the coupler.

    The LockNLube® Grease Coupler is fully rebuildable. If it starts to leak, you simply replace the seal and jaws and it is as good as new. See our tutorial here. We include a free rebuild kit with every coupler that we sell. Additional rebuild kits are also available from our store.

    The LockNLube® Grease Coupler works with all grease gun manufacturers, including Lumax, Alemite, Plews lubrication (Edelman), Granger, SKF, Macnaught, ADT, Milwaukee, John Deere, Wilmar, Legacy, Allstar, Sealey, Draper and many others.

    To see video reviews and read more customer comments, click here.



    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 2,439 Reviews
    5 ★
    96% 
    2339
    4 ★
    3% 
    73
    3 ★
    1% 
    13
    2 ★
    0% 
    4
    1 ★
    0% 
    10
    Customer Photos
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    J
    05/16/2024
    Jason SVG verified by SHOP

    Good product

    SC
    05/15/2024
    Stanley C.
    United States United States

    Lock n lub coupler

    Wish i had this 40 years ago,excellent item

    JY
    05/15/2024
    Jeff Y.
    United States United States

    Pretty darn good product

    Works fairly well, would recommend to anyone

    DS
    05/14/2024
    David S.
    United States United States

    Finally a grease gun coupler that is junk after 10 uses.

    I have the coupler on my electric Milwaukee grease gun and so far it has proven its a quality coupler. I have went through at least 7 different couplers all junk. Finally got one to stay on and come off as it should. It stayed on and stopped my Milwaukee on a grease zero that wouldn't take grease. That really impressed me.

    MS
    05/13/2024
    Marcia S.
    United States United States

    Glad I bought this!

    I was tired of fighting to attach and then remove the grease fitting that came with my Milwaukee grease gun, so I decided to try the Lock N Lube. What a difference! I would definitely recommend this.

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