This genuine replacement fuel injection pump is engineered for ISUZU N-Series trucks equipped with the 4JJ1 engine. It ensures precise fuel delivery and optimal combustion, restoring your vehicle's factory performance and efficiency. Manufactured to meet strict OEM specifications, this pump is a direct fit for models requiring part numbers 294000-0490 or 294000-0491. Built for durability and reliability, this component is essential for maintaining engine power and smooth operation. It is a critical part for any repair or maintenance schedule, designed to provide long-lasting service under demanding conditions. Sourced from a trusted supplier, this listing offers a high-quality solution for your diesel fuel system needs. Ensure your vehicle runs at its best with this reliable fuel injection pump.