1. Product Description

This high-pressure common rail injector is built for heavy-duty industrial equipment and long-haul logistics, serving as the core power component to revitalize classic engines. Equipped with top-tier micron-level atomization technology, it completely eliminates sluggish power under heavy loads and laggy acceleration on takeoff. After installation, the truck delivers firm, forceful throttle response while the engine gets rid of violent vibration, running with a deep, steady mechanical hum. It not only eliminates black exhaust smoke but also drastically cuts fuel consumption during daily heavy haulage, acting as your reliable guarantee for economic benefits.

2. Product Advantages

High-Elasticity Solenoid Design Delivers Explosive Heavy-Duty Torque

Fitted with responsive solenoid assemblies engineered exclusively for high-pressure heavy-load conditions, it greatly cuts response time and enables highly consistent multi-stage injection. Fuel and air achieve perfect homogeneous mixing inside cylinders, allowing the engine to generate tremendous thrust at medium and low RPM, easily tackling steep slopes and fully loaded extreme road conditions.

Specially Heat-Treated Matching Components for Harsh Variable Fuel Quality

Core high-frequency friction pairs including needle valves and control valves are made of special alloy steel resistant to ultra-high pressure and high temperature, processed with advanced deep nitriding and quenching technology. This treatment delivers extremely high surface hardness, effectively resisting scuffing wear from tiny impurities in low-grade diesel fuel. It prevents valve seizure or pressure loss caused by excessive fuel return, ensuring high vehicle uptime around the clock.

Full Bench Inspection to OE Standards, Plug-and-Play with Automatic Closed-Loop Correction

Before shipment, every injector passes consistency calibration for flow rate and pressure across the full spectrum of operating conditions (idle speed, pre-injection, full-load emission, etc.) on a digital intelligent test bench. All electrical parameters and physical dimensions fully comply with original OE standards. After replacement, the engine ECU recognizes the injector seamlessly in seconds without tedious manual tuning, restoring factory calibrated performance with direct fitment.

3. Parameter Table

4. Compatible Vehicles

Suitable for medium & heavy-duty trucks, medium coaches and specific construction machinery equipped with Dongfeng Cum-mins ISBe, 4ISBe, 6ISBe Series (3.9L / 5.9L) diesel engines meeting China National III & National IV emission standards:

Dongfeng Truck Range

Dongfeng Tianjin cargo trucks & dump trucks, partial medium construction vehicles of Dongfeng Kinland.

Medium Coaches & City Buses

Urban transit buses and highway coaches fitted with 5.9L Cum-mins diesel powertrains, including Yutong, King Long and Higer buses.

Logistics Delivery Vehicles

Medium box logistics trucks equipped with the above Cum-mins powertrains, such as JAC Gallop, Foton Daimler vehicles.

Engineering & Sanitation Equipment

Large sanitation water sprinklers, truck-mounted cranes and special operation chassis fitted with Cum-mins 4ISBe/6ISBe engines.