Applicable to C18, C15, C13, C32 engines and 345C excavators

423-8521 is a fuel water separator specifically designed for Caterpillar (CAT) excavators, generators and other construction machinery. It features both efficient filtration and oil-water separation capabilities, effectively removing impurities and moisture from diesel, protecting the engine's fuel system, extending the lifespan of key components, and is suitable for various harsh working conditions.