LockNLube was founded by farmers and loggers with the goal to End Greasing Frustration by creating tools that work better and last longer than anything else on the market. Our tools are built to solve the unique challenges farmers face and stand up to the heavy use and demands of farming. LockNLube tools make farm equipment maintenance faster, easier, cleaner and less frustrating. Increase uptime, save time on routine greasing and tire inflation, reduce the cost of wasted grease, and prolong the life of bearings and bushings when you know that the grease goes in, not on, the machine.

LockNLube® Grease Gun Coupler

Our LockNLube® Grease Coupler is the original, patented, locking grease coupler—don't settle for imitations. With over 20,000 Five-Star reviews online, it can't be beaten. Replace your existing coupler with a LockNLube® Grease Coupler, and end greasing frustration! 1/8" NPT thread, works with all grease guns and Zerk fittings. Finally, a grease coupler that really works – hands-free, no mess, and no wasted grease!

Trusted by Farmers since 2013!

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LockNFlate® Air Chuck

The new standard in locking air chucks! Locks on—Stays On—Won’t Leak! Like no other air chuck on the market, the LockNFlate's six steel jaws lock onto any Schrader valve to create a secure, hands-free connection. The heavy-duty construction is built to last and stand up to everyday use on the farm, in the shop, and on the road.

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8-Piece Quick Connect
Greasing Accessory Kit

Reach any fitting on any machine! Eight quick-connect adapters allow access to hard-to-reach grease fittings.


• Simple 90° Adapter

• Push-On 90° Adapter

• 90° Grease Coupler Adapter

• Narrow Needle Greasing Adapter

• Grease Injector Needle

• Recessed (Cup) Extension

• Seal-Off Adapter

• Flexible 12” Hose Extension

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LockNLube Heavy-Duty
Pistol Grip Grease Gun

The LNL153 is a heavy-duty grease gun that gets the job done! We include a high-quality 20” hose, in-line Hose Swivel, and LockNLube® Grease Coupler. We guarantee that the coupler locks on and won’t leak. When you’re done greasing just push the thumb lever down to release.

• LockNLube® Grease Coupler

• "Loop & Lock" storage feature keeps you clean

• 20" Heavy Duty Hose and in-line hose swivel

• Rubber grip and ergonomic handle

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LockNLube® Grease Gun Coupler XL

Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.

Extra reach for recessed grease fittings! Rated to 10,000 PSI! Locks on, stays on. Does not leak once locked on.

• Over 3.5" of reach.

• Fits all standard Grease Guns
• Hands-free - won't pop off under pressure.

• Easily release from fittings with the thumb lever, even at extreme pressure.

• Rebuildable, not disposible

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Customer Reviews

“Greatest thing since the invention of the aluminum beer can ... won't own a grease gun without it.”


"I had a couple of pins on a tractor loader that I recently purchased that would not take grease. I used the grease buster on them and it worked exactly as advertised. The whole process for two fittings took 20 minutes from opening the package to grease fittings that work as they should. Great product!"


"I can’t explain how much I love this

chuck. I have been using different

gauges for years but this beats them

all. I would recommend this to

anyone who asks me.

I am so happy that I found this."