20476847 O-Ring P4, OM-122DW, OM-128HH Zoom

Toyotomi O-Ring (P4)

20476847

Models: OM-122DW, OM-128HH

Status: In Stock

US$4.99

Description

Description

The Toyotomi O-Ring P4, part number 20476847, is a factory replacement sealing component designed to maintain airtight connections within compatible Toyotomi OM-series oil-fired heater assemblies.

What’s included: One Toyotomi P4 O-ring seal.

Installation limits: Install only on approved Toyotomi heater models with power disconnected and components cooled; follow the Toyotomi service manual to ensure proper seating and sealing.

Compatibility: Compatible with Toyotomi OM-122DW and OM-128HH heater models.


Oil Miser 128HH, O Ring P4 is located next to Thermistor and High Limit Thermistor.

Features

Features

  • Factory replacement O-ring seal (P4 specification)
  • Designed for OM-series Toyotomi heaters
  • Provides airtight sealing between connected components
  • Helps prevent air or exhaust leakage
  • Direct-fit component for listed models
  • Used during maintenance or service of sealed assemblies

Specifications

Specifications

Product Type: O-ring sealing gasket
Brand: Toyotomi
Manufacturer Part Number: 20476847
Application: Sealing connection points in oil-fired heaters
Function: Maintains airtight seal within heater assembly
Compatible Models: Toyotomi OM-122DW, OM-128HH

 

Properly installed seals help ensure safe combustion and efficient heater performance.

 

Support

Support

 
Product FAQ

Q. What does the Toyotomi 20476847 O-ring do?

A. It provides an airtight seal between connected components in compatible Toyotomi heaters.

Q. Which heater models use this O-ring?

A. It is compatible with Toyotomi OM-122DW and OM-128HH models.

Q. Is this a direct replacement seal?

A. Yes, it is a factory replacement O-ring designed for the specified models.

Q. Why is proper sealing important?

A. Proper sealing prevents air or exhaust leaks that can affect heater performance and safety.

Q. When should this O-ring be replaced?

A. Replacement may be required if the seal becomes worn, cracked, or causes leakage.

Q. Are installation procedures important?

A. Yes, installation should follow the Toyotomi service manual to ensure proper seating and safe operation.

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