Description
Product Overview
The pump head of the distribution pump is the core hydraulic component of the DPA diesel injection pump. It is subjected to high-pressure fuel erosion for a long time. The rotor and piston are prone to wear and internal leakage, resulting in imbalance of the supply pressure and deviation of fuel supply volume for each cylinder, which leads to engine power reduction and running jitter. This product has standard external installation dimensions, high assembly accuracy, and is easy to assemble. It is widely applicable for the maintenance and replacement of fuel pumps in construction machinery, agricultural tractors, light diesel vehicles, and diesel generator sets.
Core advantages of individual products
1. **High-quality alloy steel substrate, resistant to wear and high-pressure corrosion**
The main alloy steel is precisely forged, and the friction working surface is strengthened through heat treatment. It can withstand various diesel medium erosion and does not deform or leak under long-term high-pressure conditions.
2. **Micron-level matching grinding, strong sealing stability**
The rotor, piston, and sleeve are precisely matched through grinding, with precise gap control. The leakage of high-pressure fuel is small, the supply pressure is stable, and the fuel supply to each cylinder is uniform.
3. **Finished machine assembly inspection**
Each assembly undergoes multiple bench tests for sealing, fuel supply volume, and pressure, resulting in high performance consistency and lower machine failure rate.
4. **Standard size dimensions, no modification installation**
The flange installation dimensions are universal, eliminating the need for secondary processing, and saving time and effort for maintenance and disassembly.
5. **Rich application scenarios**
Suitable for agricultural tractors, light diesel trucks, small engineering equipment, diesel generator sets, and other diesel-powered equipment.
List of Accessories
- Part Model: 7189-461L
- Product Name: DPA Distribution Pump Pump Head Assembly
- Complete Set Pre-assembly: Pump housing, rotor, and piston complete components
Applicable Scenario
Equipped with the DPA series distributed fuel injection pump, it is suitable for major overhaul and replacement of fuel injection pumps in construction machinery, agricultural tractors, light diesel vehicles, and diesel generator sets.
Product Basic Parameters
Product Name: Distribution Pump Pump Head Assembly
Part Number: 7189-461L
Material: Alloy Steel
Structure: DPA Hydraulic Pump Head Assembly
Product Status: Brand new finished product, pre-installed, bench performance calibrated
Packaging: Neutral independent shockproof cardboard box; supports large-scale neutral packaging for shipment
