LANNIU Grease Gun Coupler 12,000 PSI — 2.9" Extended Reach, Six‑Flap Lock, Nickel‑Plated

If you maintain tractors, trucks, agricultural equipment, or industrial machinery, reliable grease delivery matters. This coupler is built to form a tight seal, resist blow-off under extreme pressure, and reach recessed fittings that typical couplers cannot. Its nickel-plated carbon steel body and high-strength springs offer long service life, while the included cleaning kit helps keep the unit performing consistently.

How does this coupler reach tight or recessed grease fittings?

The coupler features a 0.53" diameter body and an extended length of over 2.9", engineered to access shielded PTO shafts, axles, U-joints, harvester heads, and other deep-set fittings. Its slimmer profile slides into cramped areas and the locking mechanism holds securely during greasing so you don’t have to fight for position.

• 0.53" diameter for narrow access points
• Over 2.9" reach for recessed fittings
• Slender profile to fit behind shields and panels

Will it prevent grease waste and accidental blow-off?

The one-piece molded six-flap locking plate forms a firm seal around fittings to reduce drips and prevent spray-back. Rated to withstand pressures up to 12,000 PSI, the coupler is designed to stay attached under heavy-duty pumping and minimize lost grease during service.

• Six-flap locking plate for a secure connection
• 12,000 PSI pressure tolerance for heavy-duty pumps
• Reduced mess and more efficient grease transfer

How easy is it to use and maintain on the job?

This coupler supports one-handed operation with a quick-release action that remains dependable even under high pressure, letting technicians work faster. A cleaning kit is included to remove debris and prolong coupler life, and the nickel-plated finish resists corrosion for lower maintenance frequency.

• One-handed lock and release for faster service
• Included cleaning kit for straightforward upkeep
• Nickel-plated carbon steel resists wear and corrosion

Is it compatible with my grease gun and fittings?

The LANNIU coupler fits all standard 1/8" NPT grease guns—manual, pneumatic, and electric—and works with both SAE and metric grease fittings. That broad compatibility makes it a practical swap-in for mixed fleets or workshops that service multiple equipment types.

• Fits 1/8" NPT standard grease guns
• Compatible with SAE and Metric grease nipples
• Works with manual, pneumatic, and electric guns

Who is this for: Technicians, farmers, fleet managers and DIY mechanics who need a dependable coupler that reaches recessed fittings, resists blow-off at high pressure, and reduces grease waste. If you service heavy equipment, agricultural machinery, or vehicles with shielded fittings, this LANNIU coupler delivers a sturdy, low-maintenance solution that speeds service and improves grease delivery precision.