Locknlube GC81011 Locking Grease Coupler 10000 Psi

Product Description

The LOCKNLUBE GC81011 is a locking grease coupler rated to 10,000 psi, designed to stay locked onto a Zerk fitting during the entire grease cycle without leaking or slipping off mid-shot. The 1/8 inch NPT inlet connects to any standard grease gun, including battery-powered, pneumatic, and manual models. When the trigger is released, the coupler disconnects cleanly even under residual pressure, reducing the blowback and mess that causes wasted grease and damaged fittings. The GC81011 includes a rebuild kit, making it the only rebuildable grease coupler of its type and lowering the total cost of ownership over time. Licensed under US Patent 8955544.

The GC81011 is suited for fleet maintenance, agricultural equipment, construction machinery, and any application involving routine lubrication of Zerk fittings. It works on all standard SAE and metric Zerk fittings, so technicians can carry a single coupler across a mixed equipment lineup. The locking mechanism prevents the coupler from backing off under high-pressure greasing, which is especially useful on hard-to-reach or recessed fittings that are prone to damaged or sheared Zerks when a coupler pops free unexpectedly.

Key Features

• Locks onto Zerk fittings and holds position throughout the grease cycle, preventing blowback and leaks
• Rated to 10,000 psi working pressure
• 1/8 inch NPT inlet is compatible with all grease gun types: battery, pneumatic, and manual
• Disconnects cleanly even under residual line pressure
• Works on all SAE and metric Zerk fittings
• Includes rebuild kit for extended service life and lower long-term cost
• Patented locking technology (US Patent 8955544)

Compatibility

Compatible with all grease guns using a 1/8 inch NPT fitting connection, including battery-powered, pneumatic, and manual models. Works on all SAE and metric Zerk fittings across equipment types.

Installation Notes

Thread the GC81011 coupler onto the grease gun hose or gun head at the 1/8 inch NPT connection and tighten securely before use. No special tools are required for attachment. Before servicing the coupler or replacing internal components using the included rebuild kit, relieve all pressure from the grease gun and hose. Inspect the coupler jaws and internal seals periodically for wear, especially in high-cycle applications.