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LockNLube® Grease Coupler XL

SKU: GC81042

144
  • WIll not leak once locked on.
  • Hands-free, does not release under pressure
  • 3.6″ of effective reach. Perfect for greasing U-joints, harvester heads, shielded PTO shafts, and deeply recessed Zerks.
  • Will not leak once locked on.
  • 1/8″ NPT thread. CCompatible with all grease guns.
  • Works on all Zerk fittings, SAE and metric.
  • Comes with free replacement seal and jaws. Fully rebuildable. 

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30-DAY MONEY-BACK GUARANTEE • 1-YEAR WARRANTY


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.

Product Features

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.

RETURNS

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.

SHIP YOUR ITEM BACK TO US

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.

FEATURES + BENEFITS

  • Nearly 4 inches of reach suitable for deeply recessed Zerk fittings.
  • Simply depress trigger to release, even under pressure.
  • Works with all grease gun types: pneumatic, manual and electric.
  • Works on all Metric and SAE specification Zerks (grease nipples).
  • Fits 1/8-inch NPT thread grease hoses.
  • Works with all grease gun manufacturers, including: Lumax, Alemite, Plews lubrication (Edelmann), Grainger, SKF, Macnaught, ADT, Milwaukee, John Deere, Wilmar, Legacy, Allstar, Sealey, Draper and many others.
  • No need to hold while greasing. Lock-on and free up both hands to operate your grease gun.
  • Durable nitrile rubber seal for longevity under high pressure.
  • Four hardened spring steel jaws are resilient under high pressure.
  • Check valve to reduce leakage.
  • Suitable for high-pressure, heavy duty applications.

KEY SPECS

Description Specification
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

Customer Reviews

5.0 Based on 144 Reviews
5 ★
95% 
137
4 ★
5% 
7
3 ★
0% 
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EF
07/16/2019
Eugene F.
United States United States

Well made accessory

I use a Milwaukee battery powered grease gun. It has a selectable number of pumps initiated with a squeeze of the trigger. With your lLockNLube grease coupler it is just a lot easier to use. I’ve been using your standard LockNLube coupler for more than a year. The XL version allows me to easily access a fitting that has always been a pain. It is not a gimmick. It simply works well!

VL
07/12/2019
Victor L.
United States United States

LocknLube Couplers

First time I tried the coupler, it connected no problem, greased a few fittings, no leakage

DL
07/11/2019
dick l.
United States United States

LockNLube XL

good. Worked better than expected. Pushed grease thru without disconnecting.

PL
07/10/2019
Paul L.
United States United States

Lock and lube.

Fantastic product I bought standard and long one. Both work well. Thanks

PW
07/09/2019
Pete W.
United States United States

Perfect

This has made grease maintenance of no more investment than checking the oil...no fuss, no muss, and no cleanup. Honestly, sorry I waited this long to buy!

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