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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.

    • Based on 30,553 reviews
Condition: New
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$32.99 Why this price?
Save $74.99 was $107.98

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As low as $8 / mo
  • – 4-month term
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Nov 20
Order within 3 hours and 5 minutes
Available payment plans shown during checkout

Features

  • 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 couplers 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!
  • 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!
  • RATED UP TO 10,000 PSI
  • BEST BUILT GUARANTEE: The LockNLube Grease Coupler is covered by our unconditional 1-year warranty

Manufacturer: ‎LockNLube


Part Number: ‎GC81011


Item Weight: ‎4 ounces


Product Dimensions: ‎3.45 x 0.63 x 1.66 inches


Item model number: ‎1/8\\\" NPT


Is Discontinued By Manufacturer: ‎No


Item Package Quantity: ‎1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: December 9, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Excellent product for regular SUV service
Trying to grease the drive line on my 4 wheel drive 4 Runner with a standard grease gun coupler was a PITA. This coupler is fantastic. Easy on, easy off and the grease goes where it’s supposed to. Money well spent.
Reviewed in the United States on October 25, 2024 by H&D
    • So effective and helpful!
Absolutely love this grease gun attachment. Frees up one hand to pump grease. Too often, greasing requires one hand to keep pressure on the grease zerk so the grease gun’s hose and fitting don’t pop off. This eliminates that problem. Also, I owned a Cub Cadet lawn tractor that had all of its grease zerk fittings pressed in, rather than threaded. Removing the press on style grease gun coupler would often pull the zerk right out of the hole, requiring the zerk to be hammered back in. Again, this quick, clamp on coupler eliminated that problem. Seemed a bit spendy at first, but now I feel it’s worth every penny. ... show more
Reviewed in the United States on September 19, 2024 by Jeffrey
    • Excellent product
Why did I wait is my question. Works like magic, easy on and off the fittings, doesn’t leak or come off until you decide to take it off. Buy one, they’re awesome.
Reviewed in the United States on November 7, 2024 by Trevor
    • LockNLube Grease Gun Coupler Works GREAT!
I have a utility Tractor that has 36 zerk fittings that need to be greased every 10 hours. Also have a Milwaukee M18 Cordless 2-Speed (electric) Grease Gun, which makes greasing much easier, although grease leakage at the coupler can be huge. So I purchased a spring loaded Grease Gun Coupler for about $14. Although it worked better than the standard grease gun coupler, it still leaked a lot and made a BIG mess! Finally, I bought a LockNLube Grease Gun Coupler. It works great. Almost no leakage. Even though it cost 3x my "1st" spring loaded coupler, IT HAS BEEN WELL WORTH IT. ... show more
Reviewed in the United States on September 14, 2024 by Zeta2003
    • Bulky but high quality
This will not fit in tight places. It’s bulkier than I thought it would be. The button release is giant. But it works awesome and comes with a rebuild kit. Not a common practice at all. I like it.
Reviewed in the United States on October 20, 2024 by Chris Slaughter
    • Lock and lube
Pricey but works good
Reviewed in the United States on November 1, 2024 by Bob
    • Best of its kind
The Good: Very well-made and even comes with a spare parts kit. Locks on zerk fitting securely and releases easily when done. No grease blow-by. I now use them on all my grease guns. Because it locks but releases, no more wrestling match to remove from fittings, and no more torn out zerks (yes, it can happen.) There are many similar devices on the market; this company makes the best. Room For Improvement: Wider than a conventional grease gun tip, so it sometimes won't fit into narrow spaces. Also, on the expensive side. ... show more
Reviewed in the United States on November 6, 2024 by robosolo
    • Grease coupler
Works great. Locks onto zerks and doesn't leak.
Reviewed in the United States on November 2, 2024 by Richard

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