Description
### Product Overview
The pump head rotor is a highly precise hydraulic component at the core of the DPA distributed fuel injection pump. Under the long-term impact of high-pressure fuel, the rotor and the sleeve are prone to wear and internal leakage, resulting in unstable fuel supply pressure and differences in fuel supply volume for each cylinder, which can cause poor engine performance and vibration during operation. This product has standard dimensions and is highly compatible for assembly, easy to disassemble and assemble, and is widely used in the maintenance and replacement of fuel pumps for agricultural tractors, construction machinery, light diesel vehicles, and diesel generator sets.
### Product Advantages
1. **High-strength alloy steel material**
The main body is precisely forged, and the working surface is strengthened through heat treatment. It is resistant to wear and fuel corrosion, and does not deform or leak under long-term high-pressure conditions.
2. **Micron-level paired grinding components**
The rotor, plunger, and partition sleeve are precisely machined in pairs, with strict control of the mating clearance. There is little fuel leakage, the fuel supply pressure is stable, and the fuel supply to each cylinder is balanced.
3. **Whole machine bench performance testing**
Each finished product undergoes sealingity, fuel supply volume, and pressure tests. The performance is stable, and the failure rate of the machine when installed is low.
4. **Standard structure without modification**
The installation flange size is standard, and no secondary processing is required. Maintenance and assembly are time-saving and labor-saving.
5. **Wide application range**
It is compatible with multiple 6-cylinder DPA diesel distribution pumps. It is a universal spare part for agricultural machinery and construction machinery maintenance.
## Product Specifications
- Main model: 800L CI
- Rotor engraved code: 344W
- Assembly identification: 91Y
- Category: DPA Distribution Pump Head Assembly (Head Rotor)
- Specification: 6 cylinders
- Composition: Separate cylinder + Rotor + Piston complete pre-installed components
- Material: High-quality alloy steel
- Condition: New finished product, pre-installed, bench calibration
- Packaging: Neutral independent shockproof cardboard box, supporting large-scale neutral export packaging
