Dealing with fuel leaks on a Detroit DD15 engine? This 6-piece set of passthrough seals is a common and crucial fix. These small seals sit where the high-pressure fuel lines pass through the cylinder head, and when they wear out, they can cause drips or smells. This kit replaces OEM part numbers A4720780180 and A4720780480. They're made from high-quality, heat-resistant elastomers designed to withstand diesel engine temperatures and pressures. Compatible with DD15 engines found in many Freightliner Cascadia and Western Star trucks, as well as other heavy equipment. A must-have for truck owners, fleet managers, or mechanics. Always confirm this part number matches your old seals or your engine's specific needs before purchasing.
