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.
Product Description
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ONLY REBUILDABLE COUPLER: All LockNLube couplers include a rebuild kit! Simply replace the seal and jaws and it is as good as new = lowest lifetime cost.
COMPATIBLE WITH ALL GREASE GUNS AND ZERK FITTINGS: 1/8" NPT works with all grease guns and manufacturers – pneumatic, manual, or electric. Locks on to all Metric and SAE specification Zerks.
BEST BUILT GUARANTEE: If our products don’t work better and last longer than anything out there, we’ll make it right. If you aren’t satisfied with anything you buy from LockNLube, send it back within a year for a full refund - no strings attached.
HANDS FREE, LEAK FREE GREASING: The LockNLube Grease Coupler is rated to 10,000 PSI (690 Bar) and will not release under pressure. No hands are needed to align the coupler or keep it attached. End greasing frustration.
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Top Reviews
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Ren
2025-02-02T00:00:00Wow. Wish I knew about these sooner. Put this on my Holt grease gun, as I tore up a Bearing Buddy trying to remove their default coupler from the fitting. Used this for the first time today on my new Bearing Buddy's....... Wow, it worked like a champ. Clamped on, grease in, and just push the thumb clamp to release. Going to put one of these on my mini grease gun. Well worth the investment. Also cool that it comes with a rebuild kit. -
Jeffrey
2024-09-19T00:00:00Absolutely 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.
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I. Garden
2025-01-05T00:00:00This grease gun coupler works as advertised. For years I struggled to grease some odd sized fittings, often not being able to get the grease into the fitting properly. This coupler locks on and gets the job done quickly with no messy cleanup. This saves me time and frustration. Like I said, why did I wait so long? -
michael r.
2025-02-06T00:00:00This is great product. Clamp onto the zirc and pump away. No more mess of extra grease - it all goes into the zirc. Wish I had this for the last 40 years!
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Mike Kirsch
2025-02-22T00:00:00I gave it 4 stars because I just got it. Made well and it works great. And I think it's going to have some longevity to it. Clamps on to the grease cert better than Expected and holds good.
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SDW77
2025-02-05T00:00:00This is a quality grease coupler. Works as advertised. It's very easy to put on and take off the grease zerk. No seepage at all, which is the whole reason I bought it. My old twist type coupler leaked bad and was hard to put on and take off the zerk.
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Jelani Lewin
2025-02-08T00:00:00I see most reviews are positive with the occasional review that doesn’t like the product because grease squeezes out the sides instead of going into the zerks. I also had this issue, but after contacting the company directly they sent a replacement. The new one works perfect, I greased 3 different suspension points this morning and it was a breeze, coupler grabbed the zerks and sent grease right in…no more squeaky suspension. So yea if your grease isn’t going in it’s likely a faulty unit you got, try getting a replacement and your experience should be much bett
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brian stern
2025-02-26T00:00:00This thing saves a lot of time, minimizes waste and frees up a hand. At least 1/2 the fittings i need to grease are difficult to reach so being able to lock this on and use two hands is huge! Out of around 20 zerk fittings in the shop this fit all but one(admittedly that one is in a tight space and at a difficult angle). I will purchase another for my high temp bearing grease gun too. If you’re on the fence, get it, definitely worth it.
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Carlos Escalante Alcalá
2024-09-20T00:00:00Es económico y te facilita el trabajo a la hora de utilizar la engrasadora. Lo recomiendo.
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jason h.
2024-08-20T00:00:00Absolutely worth the money. Locks on to the zerk fittings beautifuly, no leaks, no more need for 3 hands to grease equipment. Even forces grease into stubborn semi blocked fittings. Paired with my new milwakee m18 grease gun make an unbeatable team.
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Massey
2025-02-07T00:00:00Does what it's supposed to do, nice.
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Katre Ramdas Nagoba
2021-03-16T00:00:00सुपर गुड -
Mark
2023-08-20T00:00:00This clamps on securely and lets me pump grease into fittings that the old adapter would let just leak out around the sides. Tricky to fit into tight spaces, but what can you do.