10 BEST GREASE GUN COUPLERS for sale in 2025 – compare between the best grease gun couplers on sale.

Rank Product Rating
1
LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. World's best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.
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2,621 Reviews
Product Highlights
  • Locks on, does not leak
  • 1/8" NPT compatible with all grease guns - battery, pneumatic, manual
  • Grease goes in, not on, the machine
  • World's original locking grease coupler.

$29.95
2
DEWALT Grease Gun Coupler, Heavy Duty, NPT, 1/8-Inch, 3-Pack (DCGG5701-3)
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24 Reviews
Product Highlights
  • For use with hydraulic type grease fittings
  • Max operating pressure up to 10, 000 psi
  • Heavy Duty replacement piece
  • Item Package Dimension: 3.56" L x 2.94" W x 1.25" H

$16.48 $9.96
3
LockNLube Grease Gun Coupler XL - Extra reach for recessed grease fittings
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138 Reviews
Product Highlights
  • 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.
  • Fits all standard Grease Guns - 1/8 NPT fitting. Fits all SAE and Metric Zerk fittings. Simply replace your existing coupler.
  • Over 3.5" of reach. Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.

$39.95
4
Lumax LX-1400-2 Silver 1/8' NPT Standard Grease Coupler (Pack of 2)
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64 Reviews
Product Highlights
  • Has four hardened steel jaws for durability
  • Spring-loaded ball check valve to prevent leakage
  • 1/8 inches NPT female threads
  • Knurled body and flats for easy installation/removal

$6.43
5
VARSK Grease Gun Coupler, 15,000 PSI Burst Pressure, Heavy Duty Quick Release Grease Coupler Fits All SAE and Metric Zerk Fittings and All Grease Guns - 1/8” NPT Fitting - VA409
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Product Highlights
  • Lock and Seal up to 15,000 PSIUpgraded reinforced jaws and quality sealing gasket ensure long lasting and stable performance, and prevent leakage even at 15,000 PSI extreme pressure. Never worry about leakage with VARSK grease gun coupler.
  • Robust Build Quality Built with premium quality heat-treated medium carbon steel for for all-day performance in the shop or garage, heavier and stronger than any other grease couplers on the market. The surface adopts chrome plating technology, which has abrasion resistance and corrosion resistance, which prolongs the service life of the product.
  • One Hand OperationSmooth retraction mechanism allows one-hand operation. Once the grease coupler is locked on zerk fitting, it stays on and frees both hands to operate the grease gun. Get your work done with ease.
  • Multiple AccessoriesThe VARSK quick release grease gun coupler comes with replacement claws *3, rubber accessory *1, extra screw caps *2 and 2mm allen wrench *1, which can meet all your DIY needs.

$19.99 $14.99
6
Lumax LX-1404 Silver 90 Degree Grease Coupler for Hard-to-Reach Grease Fittings on Cars, Trucks, Farm Equipment. Ideal for Lubrication of Front and All-Wheel Drive Vehicles.
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Product Highlights
  • For use with most hand-operated grease guns
  • Spring-loaded ball check valve to prevent leakage
  • Quick connect with a spring loaded sleeve
  • Designed for hard-to-reach grease fittings

$13.99 $13.21
7
Milwaukee 49-16-2649 M18 2-Pk Grease Gun Couplers
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12 Reviews
Product Highlights
  • M18 2-Pk Grease Gun Couplers
  • The product is easy to use and easy to handle
  • The product is highly durable

$18.75
8
AZUNO Grease Gun Coupler, 2nd Generation Upgraded to 12,000 PSI, Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns 1/8' NPT Grease Gun Fittings
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81 Reviews
Product Highlights
  • Lock and Seal up to 12,000 PSIReinforced jaws and quality sealing gasket ensure long lasting and stable performance, prevent leakage even at 12,000 PSI extreme pressure.
  • Robust Build Quality Built with premium quality Zinc Coated Alloy Steelfor for all-day performance in the shop or garage, heavier and stronger than any other grease couplers on the market.
  • One Hand OperationSmooth retraction mechanism allows one-hand operation. Once the grease coupler is locked on zerk fitting, it stays on and frees both hands to operate the grease gun.
  • Unique Design Help Locating Zerk Fittings in DarkThe unique and patented Retract Mechanism pull back the inner seal and leave outer socket ring wide open, which help locating zerk fittings at blind spot.

$18.99
9
Macnaught KY Plus Safety Grease Coupler - Smallest Diameter Bore on Market - 2 Year Warranty
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Product Highlights
  • Macnaught’s patent-pending release mechanism delivers enhanced safety and is both easier and faster to use. The KY+ retains the benefit of the original floating jaw design, providing a strong, leak-free connection while improving safety and usability. --- Two year warranty!
  • Locks On Tight and Self Assists Off the Fitting.
  • True One-Handed Design – Easy to Use.
  • Compact Barrel Diameter – Smallest diameter on the market today.

$29.95
10
AZUNO Grease Gun Coupler, 2nd Generation Upgraded to 12,000 PSI, Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns 1/8' NPT Grease Gun Fittings (2 Pack)
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No ratings yet
Product Highlights
  • Lock and Seal up to 12,000 PSIReinforced jaws and quality sealing gasket ensure long lasting and stable performance, prevent leakage even at 12,000 PSI extreme pressure.
  • Robust Build Quality Built with premium quality Zinc Coated Alloy Steelfor for all-day performance in the shop or garage, heavier and stronger than any other grease couplers on the market.
  • One Hand OperationSmooth retraction mechanism allows one-hand operation. Once the grease coupler is locked on zerk fitting, it stays on and frees both hands to operate the grease gun.
  • Unique Design Help Locating Zerk Fittings in DarkThe unique and patented Retract Mechanism pull back the inner seal and leave outer socket ring wide open, which help locating zerk fittings at blind spot.

$29.99

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