4387657 | DEF Pump | For Cummins® Engines

Product Overview: Diesel Exhaust Fluid Pump 4387657 is a high-quality replacement part designed for Cummins® engines. It plays a critical role in providing diesel exhaust fluid to the emissions system catalyst, ensuring your vehicle complies with emission regulations and operates efficiently. Key Features: OEM Quality: Manufactured to meet or exceed original equipment specifications, ensuring precise fit and reliable performance. Durability: Built with robust materials to withstand harsh engine conditions and extend service life. Functionality: Accurately provides regulated DEF pressure to the DEF injector system, contributing to optimal engine performance and reduced emissions.