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🔧 Lock it tight, grease it right — the pro’s secret weapon!
The LockNLube Grease Gun Coupler is the world’s best-selling locking coupler designed for professional-grade maintenance. It securely locks onto all Zerk fittings, rated to withstand pressures up to 10,000 PSI, and comes with a rebuild kit for extended use. Compatible with all 1/8" NPT grease guns, it offers a mess-free, hands-free greasing experience that saves time and prevents leaks, making it an essential upgrade for any serious maintenance professional.
| ASIN | B00H7LPKKU |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #319 in Automotive ( See Top 100 in Automotive ) #3 in Fuel Transfer & Lubrication Products |
| Customer Reviews | 4.7 4.7 out of 5 stars (31,946) |
| Date First Available | December 9, 2013 |
| Included Components | Just the item |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 4 ounces |
| Item model number | 1/8\\\" NPT |
| Manufacturer | LockNLube |
| Material | Steel, Rubber |
| Maximum Pressure | 10000 Pound per Square Inch |
| Part Number | GC81011 |
| Product Dimensions | 3.45 x 0.63 x 1.66 inches |
| Size | NPT With Spare Rebuild Kit |
| Warranty Description | 1-Year Warranty |
C**O
The locking mechanism is solid
This LockNLube Grease Gun Coupler is a total game changer. If you’ve ever struggled with traditional couplers popping off, leaking grease everywhere, or just being frustrating to use—this completely solves those problems. The locking mechanism is solid and holds tight on the Zerk fitting, even under pressure. No more grease spraying or wasting product. Once it’s locked in, it stays put, and releasing it is just as easy. Build quality feels very durable and well-made. You can tell it’s designed for real use, not just light-duty tasks. I’ve used it on multiple machines and it performs flawlessly every time. It also saves a lot of time and mess, which honestly makes the whole greasing process way less annoying. Highly recommend for anyone who uses a grease gun regularly—definitely worth the upgrade.
N**H
Secure, Clean, and Worth It
This grease coupler works extremely well. It provides a very secure, tight hold on grease zerk fittings, which allows for better grease transfer and significantly less mess compared to standard couplers. The spring in the coupler feels strong and well-built, giving you confidence that it won’t pop off under pressure. It is slightly longer and a bit bulkier than the original couplers that come on most grease guns (both electric and manual), but that actually works in its favor. In tight spots where you can’t wiggle or twist the coupler to disconnect it, this one saves a lot of frustration. No more yanking on the hose or fighting to get it off the fitting. When I bought this coupler, I also picked up the LockNLube 8-Piece Quick Connect Greasing Accessory Kit, knowing clearance might be an issue in some areas—and I don’t regret that decision at all. The combination works great and makes greasing much easier overall. I’m very satisfied with this purchase and would absolutely recommend this grease coupler to anyone who does regular maintenance and wants a cleaner, easier experience.
C**D
Great ITEM
Great addition to the toolbox, works great on ALL GREASE ZERKS, SAE AND METRIC
R**O
Good product.
Very happy with it. Works great.
S**Y
It only fits grease guns with 1/8 NPT threaded hose.
The threads are not the same that are on the Lincoln 1162 Pneumatic grease gun hose. I had to run an 1/8 NPT die on the grease guns hose threads to make it compatible. Other than that, it seems to work good.
C**M
Nice upgrade!
Very nice upgrade to my dewalt grease gun. Makes getting unhooked quick and easy!
S**E
Great product That doesn't disappoint!
Works great... Way better than the original grease coupler... i should have bought one sooner. would have saved me some headache.... i definitely recommend you buy one.... it locks on well. and easy to use.. no leaks. and fits well
T**.
Worth the investment
Makes greasing your zercs a pleasure. Works as advertised
村**夫
非常に良い製品です。
A**S
As described.
M**N
Exactly as described. Very good product
V**H
Good shop ..and good product delivered on time
T**E
Great end, no spillage and gets a fine hold of the nipple, expensive but well worth the money.
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Hace 3 semanas