A hand primer pump is a manual fuel-priming device used in diesel engines to:
Prime the fuel system after changing fuel filters or running dry
Remove airlocks from fuel lines to ensure smooth fuel flow
Assist cold starts in vehicles without electric fuel pumps
It allows you to manually push fuel from the tank to the injection system to restore normal engine function—especially critical in older diesel systems, commercial vehicles, or engines without automatic priming.
| Feature | Plastic Type (2 447 222 126) | Metal Type (F 002 H23 520) |
|---|---|---|
| Material | High-grade fuel-resistant plastic | Durable aluminum/zinc alloy |
| Application | Passenger vehicles, light commercial use | Heavy-duty trucks, tractors, industrial machines |
| Durability | Standard durability, cost-effective | High resistance to heat and mechanical stress |
| Weight | Lightweight and compact | Heavier but more rugged |
| Temperature Tolerance | Moderate (normal engine bay conditions) | High (suitable for extreme conditions) |
| Common Usage | Toyota Hilux, Isuzu D-Max, Nissan Navara, etc. | Hino, Fuso, Volvo Trucks, Construction Equipment |
| Functionality | Manual priming, air bleeding, cold start assist | Same, with higher endurance for repeated use |
| Part Number | Bosch 2 447 222 126 | Bosch F 002 H23 520 |
Manually delivers diesel fuel into the injection system
Helps restart engine after filter change or fuel drain
Removes trapped air from fuel lines (airlock)
Reliable solution for engine no-start due to fuel starvation
Trusted Bosch OEM quality for aftermarket or replacement use
Plastic Type – Bosch 2 447 222 126
Metal Type – Bosch F 002 H23 520
Choose your desired version based on your vehicle type or usage requirements.
Mechanics and workshops doing fuel system service
Diesel vehicle owners performing filter changes
Operators of diesel-powered machinery needing reliable restart tools
Malaysia
