LockNLube Grease Coupler XL (GC81042-NPT & GC81042-BSPT) - Service Kits
Extended-reach locking grease coupler (approx. 4" reach) for accessing recessed grease fittings. Rated to 10,000 PSI, it locks onto standard Zerks (grease nipples) to provide a secure, leak-free connection and releases easily with a thumb lever. Available with 1/8″ NPT or 1/8″ BSPT threads to fit all grease guns.
- Rebuildable Design
- Fully rebuildable like the standard LockNLube coupler
- Internal mechanism is identical to the standard model
- Rebuild Kit Contents
- New rubber seal
- Set of four hardened steel jaws
- Optional spacer ring (varies by kit)
- Compatibility
- Same rebuild kit fits both standard and XL couplers
- No XL‑specific kit required
- Rebuild Process
- Unscrew front collar
- Remove old seal and jaws
- Clean internal cavity
- Install new seal and jaws
- Reassemble (2–3 minute process)
- Service Interval
- Many users grease hundreds of fittings before rebuild is needed
- Heavy users may rebuild annually
- Availability
- Kits sold separately or bundled with the coupler
- Tutorials available from LockNLube
- Summary
- Rebuild kits extend coupler life indefinitely
- Low‑cost, field‑serviceable maintenance solution