Toyotomi Screw D

The Toyotomi Screw D, part number 20474051, is an OEM fastener used in Toyotomi Toyostove heating appliances to secure internal components during assembly and servicing. It is identified as Screw D in Toyotomi heater parts diagrams and is used at specific mounting points inside the appliance cabinet. This fastener supports proper assembly and stability of internal heater components used in direct-vent oil-fired heating systems.

This screw is used across multiple Toyotomi Laser series heater models and related heating units where designated in the service parts diagrams. In certain models, the Screw D fastener is located near the heat exchanger or internal heater assemblies that require secure mounting during operation and maintenance. Replacement screws are used when original fasteners are removed during servicing or when restoring the heater to its original equipment configuration.

What’s Included: One Toyotomi Screw D fastener, OEM replacement part.

Installation Limits: For use only in compatible Toyotomi heater assemblies and installation locations specified in the appliance parts diagram.

Compatibility: Compatible with Toyotomi Laser series and related heaters including Laser 30, Laser 52, Laser 55, Laser 56, Laser 60AT, Laser 72, ESD-5, and HC-190 models.

• OEM replacement fastener identified as Screw D in Toyotomi parts diagrams.
• Used to secure internal heater components within Toyotomi Toyostove appliances.
• Designed for installation at designated mounting points inside the heater cabinet.
• Used during assembly or service of Laser series direct-vent oil heaters.
• Supports structural attachment of internal assemblies such as heat exchanger areas.
• Manufactured to match original Toyotomi equipment fastener specifications.
• Compatible with multiple Toyotomi Laser and related heater models.

This screw is used within Toyotomi heater assemblies to secure internal components.