Johnson and Evinrude Outboard Vernatherm and Thermostats

Welcome to the Thermostats & Vernathrems category at ObParts—your trusted source for Johnson, Evinrude, Mercury, and Mariner outboard engine cooling solutions. Here you'll find genuine OEM Vernatherm assemblies, precision thermostats, and replacement parts designed to maintain optimal engine temperature and performance. Explore thermostats for both modern and vintage models, including thermostat kits and miscellaneous parts. Whether you need to replace a Vernatherm (thermostatic element assembly) or upgrade to a complete thermostat kit, ObParts offers quality components backed by extensive compatibility guides and marine expertise.