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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 28,349 reviews
Condition: New
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$29.99 Why this price?
Save $80.04 was $110.03

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As low as $7 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

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This item is eligible for return within 30 days of receipt

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.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jun 5
Order within 17 hours and 12 minutes
Available payment plans shown during checkout

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Features

  • LOCKS ON, DOES NOT LEAK: Grease goes in, not on the machine. LockNLubes unique sliding sleeve ensures that when the jaws are locked onto the Zerk, a leak-proof seal is created.
  • 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 dont work better and last longer than anything out there, well make it right. If you arent satisfied with anything you buy from LockNLube, send it back within a year for a full refund - no strings attached.

Manufacturer: ‎LockNLube


Part Number: ‎GC81011


Item Weight: ‎4.2 ounces


Product Dimensions: ‎3.45 x 0.63 x 1.66 inches


Item model number: ‎1/8\\\" NPT


Is Discontinued By Manufacturer: ‎No


Horsepower: ‎1 hp


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, Jun 5

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
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • great tool
This tool is amazing and fundamentally changes the task of greasing zerks, making it much easier. Greases fast and thorough, comes off the zerk quick and easy. I have a couple of zerks on my driveshaft where the space is narrow and this coupler is too thick to fit, so I remove it for those and put it back on for the rest. Can't believe I didn't discover this years ago. ... show more
Reviewed in the United States on October 23, 2023 by Homer
    • Works As Advertised
Keep in mind there is no perfect grease gun set up. This works good for the best part. There may be grease fittings that it may not be able to access in tight hard to reach spaces. I have found out through many years of experience one needs a variety of grease gun set ups if you expect to get everything. This one will do most anything that anyone might have. I bought this because I had a lot of fittings that my other coupler would not disconnect very easily. This one does well with its ability to release the zerk. ... show more
Reviewed in the United States on September 30, 2023 by Garry
    • It really works !!!
Review Image by Joelle Morris Joelle Morris
I’m sooooo excited to share this review, this is the best purchase I’ve made in years!! It makes greasing equipment a breeze!! No fuss no mess!! Thank you lock n lube !!
Reviewed in the United States on October 23, 2023 by Joelle Morris Joelle Morris
    • Works as advertised
This product is long overdue ,what an amazing product . sometimes it doesn't even look like it's on completely ,but yet you can pump grease and have no mess. nothing spills out it, definitely locks on there
Reviewed in the United States on October 15, 2023 by Shoprat
    • Makes greasing fun
At $30 a piece, it was pricey. But the ease of use made this a worthwhile purchase. The lever action helped prevent damaging the grease fittings. And getting it on/off the Zerk was dare I say "fun". Not that I do a lot of greasing, but I will be keeping this for a long time to come. Highly recommended! ... show more
Reviewed in the United States on October 5, 2023 by Jimbone
    • Tired of grease not going IN to the grease fittings/zerks? Buy THIS!!
My grease gun seemed to get grease EVERYWHERE except into the grease fittings/zerks. Well, after installing this on my grease gun, everything that needs grease gets grease.
Reviewed in the United States on October 23, 2023 by Mr. G
    • Great grease coupler
Had to get a grease gun for some of the automotive work I was doing the coupler that came on the grease gun wasn't working as well as it should have. After replacing the coupler with this one I could see the upper control arm boot starting to expand because the grease was filling the boot. I'm using this coupler on a hand pump grease gun. ... show more
Reviewed in the United States on September 28, 2023 by Amazon Customer
    • Excellent, MOST of the time 🫤
Love this tip and use it daily, but There are applications where it is too big and have to swap to old standard tip that this tool is too tight to use in.
Reviewed in the United States on October 23, 2023 by vic

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