top of page

Diamond Advantage Upper Engine Gasket kit including 18mm Head Gaskets. 


  • High-quality parts that meet or exceed OE specs
  • Backed by Navistar
  • No-risk and hassle-free core return
  • Comprehensive two-year unlimited mileage warranty on parts with labor coverage for professional installers

Check fitment before ordering. 18mm dowels were used on trucks with a build date from 2003 to Jan 11, 2006. 

03-06 6.0 Upper Engine Reseal Kit 18mm

SKU: DA2251599
    bottom of page