Lock N Lube Grease Coupler

Lock-N-Lube Grease Coupler

The GC81011 Lock-N-Lube Grease Coupler is the original locking grease coupler built to stop the classic greasing routine of “pump… slip… swear… wipe grease off everything except the machine.” It locks onto Zerk fittings, stays put, and is rated up to 10,000 PSI to handle tough jobs without leaking. When you’re done, it disconnects easily—even under pressure—helping prevent broken Zerks and keeping grease where it belongs: in the equipment, not on your hands.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: GC81011
• Brand: Lock-N-Lube®
• Product Type: Locking grease coupler
• Pressure Rating: Up to 10,000 PSI
• Coupling Action: Locks on, stays on, won’t leak
• Disconnect Feature: Easily disconnects, even under pressure
• Fitting Compatibility: Works on all Zerk fittings (SAE and metric)
• Grease Gun Compatibility: 1/8" NPT — compatible with battery, pneumatic, and manual grease guns
• Serviceability: Rebuildable design
• Included: Rebuild kit
• Technology: Patented locking technology
• Patent: US Patent #8955544
• Media Mention: As seen on TruckU (MotorTrend Channel)

Ideal For

• Greasing jobs where you want the coupler to stay attached instead of playing “greased pig”
• Reducing mess—so grease goes in the machine, not on the machine
• Frequent maintenance work where easy disconnect under pressure saves time and frustration
• Shops and fleets using multiple grease gun types (battery/pneumatic/manual) with 1/8" NPT
• Anyone tired of broken Zerks and wasted grease during routine service