Zexel Injection Fuel Pump 104646-5051

Zexel 104646-5051 Fuel Injection Pump for Isuzu 4JG2 Engines

Precision-Engineered for Consistent Diesel Performance

The Zexel 104646-5051 fuel injection pump is a high-efficiency diesel component specifically engineered for the Isuzu 4JG2 engine platform and is fully compatible with the VE4/11F1200LNP2293 configuration. As a key element in the fuel delivery system, it delivers accurate fuel quantities across a wide range of engine speeds and loads, ensuring optimal combustion and engine responsiveness.

 

Advanced Fuel System Integration

This pump is part of Zexel's next-generation fuel control systems, incorporating electromagnetic actuation for fine-tuned fuel injection and timing control. Drawing from principles used in Zexel's electro-distributor systems, it enables dynamic adaptation to engine demands, improving throttle response and combustion stability.

 

Built for Emissions Compliance & Durability

Engineered to align with Euro VI and China VI emissions standards, the pump supports reduced NOx and particulate output through enhanced atomization and precise fuel delivery. Its construction utilizes high-strength materials, optimized for weight reduction and mechanical resilience, making it suitable for long-term use in both on-road and industrial diesel applications.

 

 

Required Zexel specific calibration tool (P/N 9109-946) for pressure adjustment. Inlet/outlet fittings torque to 18-22N.m (13-16 lb.ft). Supports ultra-low sulfur diesel (ULSD) and biodiesel blends up to B20.

Utilize high speed solenoid valves to regulate fuel injection timing and volume, replacing traditional mechanical components like racks and helical grooves for enhanced flexibility.

Built with durable materials to withstand extreme operating conditions, including high temperatures and heavy loads.

 

 

Compatible with 0445110351, 8972530221 injector assemblies (suitable for Fiat engines) and other diesel nozzles designed for high pressure applications.

High efficiency filters (e.g. spin-on or cartridge types) prevent contaminants from damaging the pump, ensuring clean fuel supply.

Reinforced steel or composite pipes with precise diameters (e.g. 6-8mm) maintain stable fuel flow and pressure.

Optional electronic solenoids enhance control over injection timing and quantity.

O-rings and gaskets ensure leak-free connections and long-term durability.

 

 

Perkins 404C-22 engine

Isuzu 4JG2 turbo engine, e.g. Mitsubishi, Komatsu, Toyota

Sumitomo 6BG1 engine, 200A3 excavator

Mitsubishi fuso 4M50T truck, ME741043, 146220-4820

 

 

 

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