Shopping Cart

Your cart is empty.

Your cart is empty.

Regular and XL LockNLube Grease Couplers

Free shipping on orders over $29.99

$70.99

$ 31 .99 $31.99

In Stock
  • LOCKS ON, STAYS ON, WON'T LEAK—LIKE HAVING AN EXTRA HAND! No need to hold the coupler in place while trying to grease your machinery. The LockNLube Grease Coupler locks on tight and lets you use both hands on your grease gun.
  • THE ONLY REBUILDABLE LOCKING COUPLERS: We include a spare rebuild kit! It's like getting two couplers for the price of one.
  • 1/8" NPT COMPATIBLE WITH ALL GREASE GUNS - BATTERY, PNEUMATIC, MANUAL: Whether you are using Grandpa’s old Alemite lever grease gun, or the latest battery or pneumatic grease guns, the LockNLube Grease Coupler can be added to upgrade your grease gun.
  • LockNLube XL Grease Coupler has over 3.5" of reach. Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.
  • EASY TO USE: Press the thumb lever to open the LockNLube’s patented jaws and attach to the Zerk. Release the thumb lever and the LockNLube locks on tight! Press the thumb lever again to easily release from the Zerk, even under pressure!



Product Description

locknlube grease coupler

END GREASING FRUSTRATION

The Original LockNLube Grease Coupler

  • LOCKS ON, STAYS ON, HANDS-FREE: Grease goes in, not on, the machine. Easily disconnects, even under pressure. No more broken Zerks
  • COMPATIBLE WITH ALL GREASE GUNS AND GREASE FITTINGS: Works with all grease guns and manufacturers . Locks on to all Metric and SAE specification Zerk fittings.

The Original LockNLube Grease Coupler!

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

hero-video

Merchant Video

Hands-free, no mess, and no wasted grease! Includes a free rebuild kit. Rated to 10,000 PSI. Perfect for recessed fittings. Easily disconnects, even under pressure. No more broken Zerks.

End greasing frustration with the original locking grease coupler!

LockNLube Grease Coupler
locknlube grease coupler

Locks on-Stays on-Won't leak

Easily disconnects, even under pressure. No more broken Zerks. 1/8" NPT compatible with all grease guns - battery, pneumatic, manual.

Rebuildable

Includes a rebuild kit

Easily replace the seal and steel jaws on your LockNLube Grease Coupler. Includes 4 hardened steel jaws and a threaded cone housing the rubber seal.

Patented Locking Technology. US Patent 8955544

Works on all Zerk fittings

Patented Locking Technology (US Patent #8955544) means grease goes in, not on, the machine!

LockNLube Grease Coupler XL

Available in an XL Version

The LockNLube Grease Couler XL (GC81042) has a 2" longer barrel for those deeply recessed fittings!

Key Specs

MAX PRESSURE 10,000 psi (690 Bar). Locks on, stays on, won't leak.
ZERK COMPATIBILITY The Floating Jaws allows the LockNLube Grease Coupler to adapt to all DIN and SAE specification Zerks (grease nipples).
COUPLER THREAD ⅛” NPT female thread compatible with all grease guns - battery, pneumatic, manual
DIMENSIONS L: 3½ x W: 5/8 x H: 1⅗ In (L: 88mm x W: 16mm x H: 41 mm)
DIAMETER (FRONT OF COUPLER) 5/8 in (16 mm). Fits most recessed grease fittings (Zerks). ~1mm larger than standard coupler
WEIGHT 4 oz. (100 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

Recommended Products

$22.30

$ 9 .99 $9.99

4.5
Select Option

$18.48

$ 8 .99 $8.99

4.9
Select Option