294000-1200 8-97381555-4 1K0a 138001705 189t0f for Isuzu Nserie S4jj1 Excavator

Product Description

This 294000-1200 diesel engine high-pressure fuel pump is the core power source of the electronically controlled common rail system. It is meticulously designed for high-performance engines such as the Isuzu 4HK1/6HK1 and is widely used in medium and large trucks and construction machinery. The pump employs a precision plunger structure and an advanced electromagnetic metering unit, enabling it to maintain extremely high fuel pressure at high speeds, ensuring precise fuel delivery to the injectors. Users will experience smoother engine starts, ample power reserves even when climbing hills under heavy loads, and significantly reduced noise at idle. We understand the impact of the fuel system on the overall vehicle lifespan; therefore, this product has undergone in-depth optimization in sealing materials and metal fatigue resistance, striving to provide you with long-lasting and stable power support.

Product Advantages

Direct supply from the source factory: We have a complete production, processing, and assembly workshop, eliminating the problem of high prices caused by middlemen in the traditional supply chain. This allows you to obtain professional-grade fuel booster equipment at a very high cost-performance ratio, significantly reducing your vehicle maintenance and operating expenses.

Our stringent full-inspection standards mean that every 294000-1200 high-pressure oil pump undergoes performance testing on a high-pressure simulation test bench before packaging. This eliminates the risk of early failure caused by inconsistent quality of spare parts in the market, ensuring excellent performance after installation and avoiding the additional labor costs of repeated disassembly.

In long-haul logistics freight, heavy-duty trucks often need to travel at high speeds for extended periods under complex road conditions and climates, placing extremely high demands on the stability of the engine fuel supply system. After truck drivers replaced their pumps with this high-pressure fuel pump, they noticed a significant increase in sustained power during high-speed cruising and more stable fuel consumption over long distances, effectively preventing engine torque limitation or sudden stalling due to unstable fuel pressure.

At large construction sites, loaders and excavators frequently undergo high-intensity load changes. Replacing this high-pressure fuel pump is crucial when the equipment experiences engine starting difficulties or stalls under load. After installation, this pump ensures rapid fuel pressure build-up during cold starts and timely fuel supply response during sudden increases in excavation loads, significantly improving overall operational efficiency and mechanical reliability at the construction site.

Q: Does this pump require a replacement fuel filter?

A: Yes, it is strongly recommended to replace the fuel filter with a high-quality one. The new pump has a delicate internal structure; impurities from the old filter entering the new pump can cause irreversible damage.

Q: Does this fuel pump require programming after installation?

A: Depending on the ECU version from different years, it is recommended to use a professional diagnostic tool to learn or reset the fuel pump parameters after installation on some vehicles to match the new pumping characteristics.

Q: What is the warranty period for your products?

A: We offer a six-month warranty on all products shipped from the factory. If a malfunction occurs due to manufacturing defects within the warranty period, we will provide free repair or replacement services.

Q: Why choose an electronically controlled common rail pump?

A: Modern engines have extremely strict requirements for fuel injection pressure and timing control. An electronically controlled common rail pump is highly compatible with the original vehicle's ECU, ensuring optimal fuel atomization and thus guaranteeing power and fuel efficiency.

Q: Is it normal to have a small amount of oil inside the fuel pump after receiving the goods?

A: Completely normal. This is a special test oil left over from the pressure test before leaving the factory, used to prevent oxidation and rust inside the pump body during transportation.

Q: What should I do if I'm unsure if it's compatible with my vehicle model?

A: Please provide a photo of your engine nameplate or vehicle VIN code. Our professional technical team will conduct a secondary verification to ensure compatibility before shipping to avoid any problems.