The BOSCH 4428 4 Prong plugs are no longer available and have been replaced with the 6717. The Bosch Platinum OEM Fine Wire spark plug delivers improved ignitability and fuel efficiency, and are an economical upgrade from conventional copper core spark plugs. Engineered to meet or exceed Original Equipment specifications for Platinum spark plugs. These are the perfect OEM Upgrades to your normally aspirated 92′ to 06′ Viper or RAM-SRT10. Set of 10 plugs per package.
Bosch Platinum OEM Fine Wire Plugs for 92 – 06 Viper Engines