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Mechanical High-Pressure Fuel Injection Pump (Large Diesel Pump)
Factory direct wholesale on genuine mechanical high-pressure fuel injection pumps. Premium heavy-duty large diesel pump with precision-machined plunger elements for reliable, long-lasting fuel delivery.
Minimum order quantity: 1 unit
- Overview
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Product Details
Product Parameter Table
| Technical Parameter | Industrial Specification Data (OEM Engine Components Matrix) |
| Product Name | Mechanical High-Pressure Fuel Injection Pump / Large Diesel Pump |
| Pump Type | Inline Mechanical Injection Pump (Bosch P-Type / PE Series Architecture) |
| Plunger Diameter | 9.5 / 10 / 11 mm (per application, heavy-duty class) |
| Plunger & Barrel | Precision-Ground Hardened Alloy Steel (High-Pressure Rated) |
| Delivery Valve | High-Precision Unloading Valve (Durable, Leak-Free) |
| Chassis Brand Match | Sinotruk Howo, Shacman, Dongfeng, Foton & Heavy-Duty Diesel Trucks |
| Engine Configuration | WD615, D12, Weichai WP10 / WP12, Cummins & Similar 6-Cylinder Diesel |
| Injection Pressure | Up to 1200-1600 Bar (High-Pressure Mechanical Delivery) |
| Pump Speed Range | 1000-3000 RPM (Engine-Coupled Drive) |
Confirm part number with actual engine configuration before ordering.
Features of mechanical high-pressure fuel injection pump
Precision-Ground Plunger & Barrel Assembly: Manufactured from premium hardened alloy steel with mirror-finish precision grinding, the plunger and barrel pair maintains exact fuel metering and high-pressure sealing through hundreds of thousands of operating hours, preventing internal leakage and power loss.
High-Pressure Reliable Delivery: Engineered to deliver injection pressures up to 1600 bar, the pump ensures complete atomization and combustion of diesel fuel — optimizing power output, reducing fuel consumption, and minimizing exhaust smoke under full load.
Fatigue-Resistant Camshaft & Drive Components: Built with hardened, precision-machined camshafts and roller followers, the drive train maintains stable pumping timing even under severe load torque, preventing injection-timing drift that causes rough idling and lost power.
100% Direct-Fit OEM Dimensions: Mounting flanges, drive coupling interfaces and fuel line ports align perfectly with original factory components — a direct drop-in replacement that saves mechanics valuable downtime during engine overhauls.
Wear-Resistant Low-Maintenance Design: Engine-oil-lubricated internals with hardened contact surfaces reduce wear and maintenance frequency, lowering total cost of ownership for fleets operating in remote regions.
Enhanced Cold-Start & Full-Load Stability: Precise delivery valve control ensures reliable cold starts and stable full-load power across varying fuel temperatures and altitudes — critical for trucks operating across African and Southeast Asian routes.
Packaging and Shipping
Each mechanical high-pressure fuel injection pump is packaged in a box and protected with foam material and anti-rust oil coating to avoid damage during transportation. Small orders can be shipped via express delivery, and large orders can be shipped by sea. We provide safe and stable packaging for long-distance transportation.
About Us
Founded in 2005, we are a professional supplier of truck diesel filters, engine parts and driveline components. We focus on producing high-quality parts and strictly control quality. Our products are widely used in heavy-duty trucks and exported to Africa, the Middle East, Southeast Asia, and South America, providing reliable protection for vehicles worldwide.
With proven quality and a strong brand image, we have obtained ISO9001, CCC, ECE, and BV certifications. As a manufacturer with its own factory and R&D capabilities, we currently have 200 employees, annual sales of 60 million, and our products are widely recognized in Southeast Asia, the Middle East, Africa, South America, and Central America.
