LockNLube Grease Coupler (Standard 1/8″) – (GC81011-NPT/GC81068-NPT) / (GC81011-BSPT/GC81068-BSPT) - Service Kits
The original, patented LockNLube® Grease Coupler, a quick-connect grease gun coupler that locks onto grease fittings (zerks) and stays on without leaking up to 10,000 PSI. With a thumb lever, it releases instantly even under pressure, ending the common frustrations of greasing (couplers popping off, messy spurts, stuck couplers). Fits all standard grease guns via 1/8″ connection and is fully rebuildable.
- Rebuild Capability
- Fully rebuildable design
- Coupler Rebuild Kit GC81012-ANZ
- Includes new rubber seal and four steel jaws
- Restores like‑new sealing and grip
- Rebuild Process
- Unscrew front cap
- Remove old seal and jaws
- Clean internal components
- Install new seal and jaws
- Reassemble and tighten
- Service Interval
- Heavy users may rebuild annually or as needed
- Light users may go years without rebuild
- Additional Parts
- Thumb lever, spring, and pins available if damaged (rare)
- Replacement Option
- Entire coupler can be replaced if preferred
- Can swap to XL coupler for recessed fittings
- Summary
- Rebuild kits are inexpensive and fast to install
- Extends coupler life almost indefinitely