Our Products Showing all 4 results Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low More Info SUPER KIT - GM 6.6L LB7 DURAMAX $99.20 Engine Components More Info DURAMAX INJECTOR / RETURN LINE / VALVE COVER GASKET KIT - GM 6.6L $23.10 Engine Components More Info DURAMAX INJECTOR + RETURN LINE KIT - GM 6.6L $12.54 Engine Components More Info DURAMAX FUEL RETURN LINE KIT - GM 6.6L $4.11 Fuel Line