LockNLube Grease Coupler XL (GC81042-NPT & GC81042-BSPT) - Product Applications
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.
- Purpose
- Designed for greasing hard‑to‑reach, recessed, or shielded grease fittings
- Extended nose provides nearly 4″ of reach (≈2″ longer than the standard coupler)
- Agricultural Equipment
- Shielded PTO shafts on tractors
- Combine harvester heads
- Zerks hidden behind safety guards
- Reaches through access holes without removing covers
- Automotive & Heavy Trucks
- Driveshaft U‑joints and slip joints
- Recessed fittings inside yokes or behind driveshaft shields
- Locks securely in tight driveline spaces
- Construction & Industrial Machinery
- Skid steers, excavators, loaders, and backhoes
- Pivot pins and bushings located in deep counterbores or behind armor
- Axles and wheel bearings with recessed grease nipples
- General Use
- Works on all standard grease fittings (SAE and metric)
- Suitable for everyday greasing when additional reach is beneficial
- Locks on to free hands and prevent pop‑off under pressure
- Key Benefits
- Eliminates need to disassemble guards or panels
- Hands‑free greasing in confined areas
- Leak‑free performance even at high pressure
- Summary
- Ideal when a standard coupler cannot physically reach the fitting
- A problem‑solver for recessed and shielded Zerks