1. Product Description

This high-pressure common rail injector for commercial vehicles is custom-built for high-load long-haul logistics and engineering operations. Equipped with ultra-responsive solenoids, refined injection enables complete combustion of every fuel droplet. After replacement, the engine runs smoothly instantly, delivering full, lag-free throttle response during mid-to-high speed acceleration. It eliminates black exhaust smoke and delivers visible fuel savings during daily long-distance trips, giving you full confidence on every journey.

2. Product Advantages

Ultra-Fast Dynamic Response, Instant Peak Torque Delivery

It features a lightweight needle valve design and fluid-dynamically optimized nozzle geometry, supporting high-frequency microsecond injection switching. Under vehicle startup, heavy-load climbing or hard acceleration conditions, fuel sprays into the cylinder instantly at the optimal atomization cone angle for efficient explosive combustion, greatly boosting torque output and eliminating power cut-off.

Multi-Layer Anti-Corrosion & Heavy-Duty Wear-Resistant Technology for Harsh Conditions & Poor Fuel Quality

Advanced special coating with ultra-low friction coefficient is applied to core control valve pairs and matching components, delivering outstanding wear resistance, cavitation resistance and high-temperature tolerance. Even with diesel fuel containing excessive impurities or low lubricity, it maintains consistent operation, effectively preventing seized needle valves and excessive fuel return to ensure maximum all-day vehicle uptime.

Micron-Level OE-Grade Bench Calibration for Seamless System Compatibility

Every injector undergoes rigorous testing on a fully automatic digital test bench before shipment, covering flow calibration across all operating conditions: ignition, idle speed, pre-injection, emission control and full load. All electrical characteristic parameters and physical dimensions fully comply with original OE standards. After replacement, the vehicle ECU automatically recognizes the injector without complicated tuning, effortlessly restoring factory-standard engine power.

3. Parameter Table

4. Compatible Vehicles

Suitable for medium & heavy-duty trucks, passenger buses and large construction machinery equipped with Cum-mins ISLe, QSL, 8.9L Series diesel engines meeting China National III / IV / V emission standards:

Heavy-Duty Trucks & Tractor Units

Dongfeng Tianlong 340/375 HP series, Dongfeng Kinland dump trucks, plus logistics freight vehicles from Shaanxi Auto and JAC fitted with Cum-mins powertrains.

Long-Distance Coaches & City Buses

11–13 meter large highway coaches with 8.9L Cum-mins engines, including Yutong, King Long buses.

Construction & Special Vehicles

Large excavators, cranes, rotary drilling rigs manufactured by XCMG, Liugong, SANY; plus special power equipment such as airport shuttle buses and fire trucks.