Fuel Pump 12V for Cummins ISB QSB 8.3L ISC Series 3990071 4935005

This 12V fuel pump is designed for Cummins ISB, QSB 8.3L, and ISC series engines, compatible with part numbers 3990071 and 4935005. Please note, this is a high-quality aftermarket replacement part, not an OEM component. Engineered to deliver reliable fuel flow and optimal performance, it ensures your engine runs smoothly. Easy to install and built to meet or exceed industry standards, it’s a cost-effective solution for maintaining your Cummins engine. Perfect for mechanics and DIY enthusiasts seeking durable and efficient fuel pump replacements Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.