Fasco 1MBS1 3-Speed Rear Mount Motor – OEM Replacement for Buck Stoves 26000, 27000 & 28000 (Replaces D1138, CW Rotation)

Fasco 1MBS1 3-Speed Rear Mount Motor – Fits Buck Stoves 26000, 27000, 28000 (Replaces Part #D1138) (CW Rotation)

Restore your stove’s airflow performance with the Fasco 1MBS1 rear mount motor. This 3-speed motor provides flexible heat control and is a direct replacement for Regal/Fasco part #D1138. Specifically designed for Buck Stove models 26000, 27000, and 28000, this motor offers the traditional 3-speed setup preferred by many wood stove users.

Built for durability and consistent operation, the 1MBS1 ensures reliable performance and efficient heat distribution in high-demand heating environments.

Common Fan blade for this motor is the:

9-1/4" Blower Fan Blade – PO-400170 | Fits Buck Wood Stoves | 5/16" Bore | Replaces 1FBS914 / 1A5030

Key Features:

• 3-Speed Functionality – Allows for low, medium, and high airflow settings
• Rear Mount Design – Designed for easy installation in compatible blower systems
• OEM Replacement – Replaces Fasco/Regal part #D1138 for Buck stoves
• Reliable Operation – Engineered for durability and consistent heat distribution
• Legacy Compatibility – Works with older Buck models using the original 3-speed motor

Specifications:

• Part Number: 1MBS1
• Motor Type: 3-Speed
• Mount Style: Rear Mount
• OEM Equivalent: Regal / Fasco #D1138
• Application: Convection motor for wood stove blower systems
• Includes: Motor only (fan blade and housing sold separately)

*Note When you purchase th 1MBS1 Motor you may also want to replace the M-23 Gasket that goes between the Motor housing and the Stove.  There is also a M-58 Gasket that goes between the motor and motor housing that is normally reused.  

Compatible Models:

• Little Buck 26000
• Regular Buck 27000
• Big Buck 28000

Important Note:

This is the original 3-speed blower motor. Buck now also offers a single-speed motor that requires a CPI upgrade. Either blower is compatible with the listed models, depending on your control setup.
*Always check your existing part and owner’s manual to confirm compatibility before ordering.

Why Choose the Fasco 1MBS1 Buck Stove Blower Motor?

A failing blower motor can reduce heat circulation, cause uneven room temperatures, or create excessive noise. Replacing it with the Fasco 1MBS1 rear mount motor restores proper airflow, smooth multi-speed operation, and dependable heating performance. Manufactured to OEM standards, this motor delivers the reliability and longevity Buck stove owners expect.

Installation Instructions:

Disconnect power to the stove at the breaker before servicing. Ensure the stove and blower assembly are completely cool.

Remove the rear access panel or blower housing cover to access the existing motor.

Disconnect the motor wiring. Label wires or take a photo to ensure correct reconnection, especially for the three speed leads.

Remove the mounting screws or bolts securing the old motor to the rear mount bracket. Carefully remove the motor.

Inspect the blower housing and fan blade for debris, damage, or imbalance. Clean or replace components as needed.

Install the Fasco 1MBS1 motor onto the rear mount bracket. Secure it using the original hardware or approved replacements.

Attach the blower fan blade (sold separately) to the motor shaft. Ensure proper alignment and tighten securely without overtightening.

Reconnect the wiring according to the original configuration, confirming correct speed terminals and ground connection.

Restore power briefly and test the blower at all three speeds to confirm proper clockwise rotation and airflow.

Once confirmed, reinstall the access panel and resume normal stove operation.

Installation tip: Incorrect rotation or mismatched wiring can reduce airflow and cause overheating. Always verify motor rotation, wiring, and fan blade compatibility before operating the stove.