This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

🚨 Pressure Return Valves - SHOP NOW

Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
Zoom LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
430 reviews

LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings

$41.99
off

🚚 This item includes FREE shipping

  • Completely hands-free and leak-free lock
  • Easily disconnects, even under pressure
  • Works on all Zerk fittings, SAE and metric
SKU: GC81042
Add to cart

Hurry, Only 0 Left!

Free US Shipping Over $25 • Money Back Guarantee

Over 3.5" of reach. Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.

  • Rated to 10,000 PSI! Locks on, stays on. Does not leak once locked on.
  • Hands-free - does not pop off under pressure.
  • Easily release from fittings with the thumb lever, even at extreme pressure.
  • No more broken Zerks
  • Fits all standard Grease Guns - 1/8 NPT fitting. Fits all SAE and Metric Zerk fittings. Simply replace your existing coupler.
  • Includes rebuild kit. Easily replace seal and jaws without replacing the coupler.
Need a longer barrel for extra reach?

LockNLube® Grease Gun Coupler

$32.99

This item ships FREE!

LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings

$41.99

WHAT’S INCLUDED IN THE GREASE COUPLER REBUILD KIT

Free US Shipping Over $25 • Money Back Guarantee

Fantastic product, hands down! In the beginning, I made the purchase of a LuMax brand from The Home Depot...the housing was broken right out of the package so, I obviously returned it. Traveled to another city as my local hardware store was sold out of the LockNLube. I liked it so much, I ordered the extended version as well. I do wish there was a rubber cap included to keep my grease gun case clean.

Ryan B. Verified Buyer

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 rebuild kit with every coupler that we sell. Additional rebuild kits are also available from our store. The rebuild kits for the LockNLube® Grease Coupler  and the LockNLube® Grease Coupler XL are identical and can be used in either model.


LockNLube® Grease Coupler Care & Maintenance:

Check out our YouTube channel for an easy method to clean dirt and grit out of your coupler. This will extend the life of the seal, which means longer use time between rebuilds. If you find your coupler starting to leak, try this cost-saving tip before you put a rebuild kit in it.

Consider using a Coupler Cap and Zerk Fitting Caps to keep your equipment clean.


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.

Product Info
SKU: GC81042

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 rebuild kit with every coupler that we sell. Additional rebuild kits are also available from our store. The rebuild kits for the LockNLube® Grease Coupler  and the LockNLube® Grease Coupler XL are identical and can be used in either model.


LockNLube® Grease Coupler Care & Maintenance:

Check out our YouTube channel for an easy method to clean dirt and grit out of your coupler. This will extend the life of the seal, which means longer use time between rebuilds. If you find your coupler starting to leak, try this cost-saving tip before you put a rebuild kit in it.

Consider using a Coupler Cap and Zerk Fitting Caps to keep your equipment clean.


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.

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: 5/8" x H: 1⅗ In (L: 127 x W: 16 mm x H: 41 mm)
Diameter (front of coupler) 5/8 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
CARE & MAINTENANCE

Check out our YouTube channel for an easy method to clean dirt and grit out of your coupler. This will extend the life of the seal, which means longer use time between rebuilds. If you find your coupler starting to leak, try this cost-saving tip before you put a rebuild kit in it.
Consider using a Coupler Cap and Zerk Fitting Caps to keep your equipment clean.

Grease Coupler Cap

Grease Fitting Caps (50 count)

SHIPPING & RETURNS
  • Shipping options are available at checkout
  • All of our orders ship out of either our Illinois or New Hampshire warehouse within 3 business days.
  • Shipping carrier varies by size and weight of the package.
  • LockNLube's shipping department operates Monday through Friday, 8 am to 2 pm EST except for holidays.

Over 20,000 Five-Star Reviews

OVER 2.3K+ 5-STAR CUSTOMER REVIEWS

"I highly recommend LockNLube. Great product and unbelievable customer service!"

James W. Verified Customer Dallas, TX

"I loved my first so much a bought a second. Don’t even worry about shopping around. This Is Your Grease Gun!!"

Ben H. Verified Customer Dallas, TX

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

Chris C.

A CLOSER LOOK AT THE XL GREASE COUPLER

1. Hardened spring steel jaws
• Hands-free, leak-free lock system
• Durable, high-pressure nitrile rubber seal
• Fits all Metric, DIN, and SAE Zerks

2. Spring-loaded thumb lever
Non-slip, easy release even under pressure

3. Extra long barrel
Added 2" of barrel. Over 3.5" of reach

4. 1/8” NPT female thread
Standard size that fits most grease guns

WORLD’S Only Rebuildable Grease Coupler

Built to last and work flawlessly, the LockNLube® Grease Coupler XL saves you money over time by being rebuildable. Instead of buying a new one, you can easily refresh it for more use.

NOT FULLY SATISFIED?

Our products are designed to outperform and outlast any other. Return within 1 year for a full refund, no questions asked.

KEY SPECIFICATIONS

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: 5/8" x H: 1⅗ In (L: 127 x W: 16 mm x H: 41 mm)
Diameter (front of coupler) 5/8 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
4.9 Based on 430 Reviews
5 ★
96% 
411
4 ★
4% 
17
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
2
Customer Photos
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • coupler
  • grease gun
  • fittings
  • Works
  • locknlube
  • hands
  • tractor
  • problem
  • equipment
  • tool
LP
05/15/2024
Larry P.
United States United States

LockNLube Grease Gun Coupler XL reach.

Very pleased with the product. Would definitely buy again.

L
05/13/2024
Lynn SVG verified by SHOP
United States United States

Very well made heavy duty worth the money

JH
05/06/2024
john h.
United States

J

Excellent worked as it was supposed to

JL
04/09/2024
Jason L.
United States United States

Jason Lawson

This is the best grease coupler I have ever used by far!! Love it and will be buying more soon for my entire company.

TT
04/08/2024
Todd T.
United States United States

As advertised

The last locking coupler I had was too big in diameter to fit in the holes to reach the recessed fittings. This one does the trick.

x