Experience the next generation of manual grease guns with the Macnaught AutoSwitch™ Dual Piston Grease Gun—an industry-first design that automatically switches between high-flow and high-pressure operation as conditions change.
Its innovative dual-piston mechanism senses line resistance and seamlessly transitions to high-pressure mode without manual switching, delivering smooth, efficient grease flow and effortless single-handed operation.
When resistance increases, AutoSwitch™ can build up to 12,000 PSI (82,700 kPa / 827 bar) by hand—providing the power needed for demanding grease points. A blue pressure indicator pin provides a clear visual signal when resistance rises above approximately 1,500 PSI, indicating the gun has shifted into high-pressure operation. As resistance decreases, the indicator retracts and the gun automatically returns to high-flow operation.
Built for professional use, the AutoSwitch™ features a durable cast aluminum head, 20-inch high-pressure hose, and KY SUPERGRIP™ three-jaw high-pressure coupler. Easy to prime, load, and service, it delivers the power, control, and efficiency professionals demand.
Macnaught K74P-02 Specifications
| Model number |
K74P-02 - made in Australia |
| Description |
Manual Grease Gun |
| KY SUPERGRIP™ coupler |
✔ |
| Fully serviceable |
✔ |
| Included extensions |
20” Flexible NPT |
| Output Pressure Range |
Delivery pressure up to 12,000 psi (82,700 kPa / 827 bar)
|
| Output Volume Per Shot |
Up to 1.1g (0.04oz) per shot |
| Cartridge |
14oz/400g |
| Bulk Fillable |
✔ |
| Max Grease Type |
NLGI No.2 |
Warranty
|
10 years |
Macnaught K74P-02 Features and Benefits
- Delivery pressure up to 12,000 psi (82,700 kPa / 827 bar)
- Flexible 500mm (20”) high-pressure extension hose
- KY SUPERGRIP™ 3 jaw high-pressure coupler
- Up to 1.1g (0.04oz) per shot
- Heavy-duty 1.6mm thick barrel
- Robust zinc pull handle
- Wetted parts - Aluminum, steel, nitrile rubber and nylon
- Maximum viscosity - Up to NLGI 2
- Compatible with 450g (16oz) cartridges for contamination free greasing
- Grease Filler compatible with J3 pumps
Macnaught K74P-02 Data Sheet ( PDF )
Macnaught K74P-02 AutoSwitch™ Instruction Manual ( PDF )
