Uses & Compatibility
The LockNLube® Grease Coupler XL, just like the shorter original, is compatible with all grease guns and grease fittings. It does not leak once locked on and will not pop off under pressure. No hands are needed to align or hold the coupler in place while greasing. You have both hands free to operate your grease gun and know that the grease will go in, not on, your machine. Guaranteed.
The XL is suited for all machines, but especially useful for U-Joints, Harvester Heads, shielded PTO shafts, and any fittings buried deep behind a shield. With almost 4" of reach, you can be confident that you'll reach your fittings and grease will go in, not on, your machine. When you want to release the coupler, simply depress the thumb lever, even at extreme pressures. Watch our YouTube video demonstrating the LockNLube® Grease Coupler XL.
It has a unique sliding sleeve, activated by a thumb lever. The sleeve locks the four spring-steel jaws onto the Zerk fitting, and releases the jaws by pushing on the thumb lever. When the jaws are locked onto the Zerk, a leak-proof seal is created. The locked connection is positive and rigid preventing the coupler from coming loose and breaking the leak-proof seal. If a fitting becomes pressurized, especially a recessed one, just depress the thumb lever and release the coupler.
Replaceable Seal & Jaws
The LockNLube® Grease Coupler XL is fully rebuildable. If it starts to leak, you simply replace the seal and jaws and it is as good as new. See our tutorial here. We include a free replacement seal and jaws with every coupler that we sell. Additional Seal Kits are also available from our store. The seal kits for the LockNLube® Grease Coupler and the LockNLube® Grease Coupler XL are identical and can be used in either model.
Demonstration of LockNLube XL features and releasing from a clogged fitting at 8,000 PSI
The LockNLube® Grease Coupler XL features almost 4″ of reach, 2″ more than the standard LockNLube® Grease Coupler. Especially suited for deeply recessed fittings, and with the same leak-free, hands-free convenience of the traditional model.
LockNLube provides a full 30-day money-back guarantee on all products purchased from its website. If you are dissatisfied with your purchase, you can return it to us by shipping the item back within 30 days of purchase. Once we receive your return, we will refund you the full purchase price of the item.
Please ensure that the item you are returning is repackaged securely, with all its component parts included. Please also include any documentation that came with your original order, such as a packing slip or order confirmation.
Return items to us by shipping to:
Lock and Lube 21 Technology Drive Suite #2 West Lebanon, NH 03784
For more information, please call 603.795.2298. We’re a small business and we’ll pick up the phone in New Hampshire when you call.
|Max pressure||10,000 psi (690 Bar)|
|Zerk Compatibility||Fits all DIN and SAE specification Zerks (grease nipples).|
|Coupler Thread||⅛” NPT female thread.|
|Dimensions||L: 5 x W: ⅗ x H: 1⅗ In (L: 127 x W: 16.4 x H: 41 mm)|
|Diameter (front of coupler)||⅗ in (16 mm). Fits most recessed Zerks (grease nipples). ~1mm larger than standard coupler|
|Effective Reach (Nose to trigger)||3.6 in (91 mm)|
|Weight||5.8 oz. (164 grams)|
|Grease Gun Compatibility||Works with all grease gun types: pneumatic, manual, and electric.|
|Seal||Durable nitrile rubber seal for longevity under high pressure|
|Lock-on Mechanism||Four hardened steel jaws are resilient under high pressure. Patent protected.|
|Patent||US Patent #8,955,544|
I do a lot of PTO shaft U joints so I purchased the XL. It locks on like a big snapping turtle. Lol. It will save a lot of grease that never got where it should have!
Works very Good.
Works just as advertised
Excellent now I grease and know that it is getting greased
This coupler is amazing. The central bearing on my excavator that gave me fits. Sometimes I could get grease in, but most of the time is was maybe a little bit then a mess all over the place. My thought was 30 bucks for a coupler, you gotta be nuts. But after fussing with the machine, and not really wanting to tear it apart, I broke down and bought the coupler. WOW! What a difference. I clamped the coupler on and bingo. After a bit of groaning, my Dewalt 20V grease gun started shooting in the grease...and not a mess. There were a couple more zerks that were giving me fits, and BINGO again. Problem solved. The design of the coupler forces the grease. The pot-off valve will release on the gun for gummed up fittings...but it wont make a mess on the zerk end. Thanks guys. You saved me some big bucks on not having to tear apart a machine.