1.98-03year 7.3l valve cover gasket fit ford truck 2: Easy to install, if glow plug harness broken, you can change harness directly, can save a gasket cost.because gasket is no easy broken 3.Our glow plug harness is a high temperature resistant material. 4, we have test them by machine before sell 5:99-03 all-in-one( left&right) Ford truck 7.3L Ford Powerstroke Diesel Valve Cover Gasket Set two pcs Harness, 6:Gasket Frame material is improved 33% PET AND 67% NYLONG PA66( Improved PET properties stability is good without drug from high temperatures,Nylon strong properties isFlame retardant 7:our wire is Irradiation wire & Tin plating on copper wire(Irradiation is no easy melting, Copper wire tin plating can also prevent the insulation rubber sticky, the core of the black brittle 8:Harness black plate have hole for preventing short circuit between two lines 9: Gasket Frame's rubber is Fluoro rubber( Fluoro rubber High temperature and corrosion resistance