Lower temperature thermostat allows engine to operate cooler, and works well with upgraded radiators and duct kits. Fits all model year Vipers and SRT-10 Ram Trucks. Please read details below for important information. Works on all Vipers and also on Ram SRT-10 Trucks. Our 170 and 180 degree thermostats allow the engine to operate cooler. Either temperature is acceptable for the Viper engine, but for maximum cooling we recommend the 170 degree. Choose your desired Temperature from the drop-down menu below. NOTE : 92-96 RT/10 Vipers will require a new thermostat gasket. 96-’02 GTS and ’97-’02 RT/10 Vipers will require new intake manifold and thermostat gaskets. ’03-09 Viper and all SRT-10 Ram trucks incorporate an o-ring style thermostat gasket that may or may not need to be changed. All intake manifold and thermostat gaskets are available in the Engine category under gaskets and seals.
Low Temp Thermostat 1992-2015 Dodge Viper Engines