Truck owners and mechanics working on Detroit Diesel DD15 engines - this 6-pack of fuel injector passthrough seals is exactly what you need for those maintenance jobs! These directly replace part numbers A4720780180 and A4720780480, and they're compatible with DD15 engines in Freightliner Cascadia and Western Star trucks. Now, why are these little seals so important? They prevent fuel leaks that waste expensive diesel and maintain proper pressure in your injection system for optimal combustion efficiency. They also keep out dust and contaminants that can wear down or clog your injectors over time. Made from high-quality materials that provide excellent sealing performance and durability, these seals help extend the life of your entire fuel injection system. The 6-pack means you have spares for future repairs or can do multiple injectors at once. Before you order, double-check that these match your specific engine model - getting the right part saves so much time and hassle. Proper maintenance with quality seals like these keeps your truck running efficiently and can prevent much more expensive repairs down the road. Your Detroit Diesel engine deserves these reliable replacement seals for peak performance and longevity.
Free 30-day returns 
Free 30-day returns
