The Toyotomi Upper Gasket, part number 20479581, is a genuine replacement sealing gasket designed for the upper section of select Toyotomi and Toyostove oil heaters, helping maintain proper sealing between internal components for safe and consistent heater operation.
What’s included: One (1) upper gasket.
Installation limits: Install only on a powered-down, fully cooled heater as part of approved service procedures; intended for direct replacement only.
Compatibility: Designed for use with Toyotomi/Toyostove L30 and L30-BK oil heater models.