Toyotomi O-Ring (P4) 20478568

The Toyotomi O-Ring, part number 20478568, is a replacement sealing ring used in the fuel and fluid connections of select Toyotomi Toyostove heaters including models L56, L56-MH, L56-CA, L560, L300, L530, and L730. It provides a heat-resistant, fuel-tight seal between mating components such as fuel pipe fittings or pump connections, helping prevent leakage of fuel or air that could reduce heater performance or create unsafe conditions. This O-ring is manufactured from materials matched to the original equipment so it fits directly in place during routine service or repair without modification.

This O-ring is intended for use when the existing seal shows signs of wear, cracking, compression set, or hardening that can compromise the integrity of fuel or fluid connections. Replacing worn O-rings restores proper sealing and helps maintain consistent fuel delivery and safe combustion operation. Installation should follow model-specific service documentation to ensure the O-ring is seated correctly and the mating surfaces are clean before securing connections.

What’s Included: One (1) Toyotomi sealing O-ring for compatible Toyostove models.

Installation Limits: For replacement use only on designated Toyotomi heater models; install with the heater powered off and ensure clean mating surfaces before seating the O-ring.

Compatibility: Compatible with Toyotomi Toyostove models L56, L56-MH, L56-CA, L560, L300, L530, and L730 requiring the 20478568 O-ring in fuel or fluid connections.