NBK Parts 20048 Coleman Mach 6000/8000 Series RV AC Blower Fan Motor 115V 2-Speed Direct Replacement

Restore Full Airflow to Your Coleman Mach AC Unit

The blower fan motor is the heart of your Coleman Mach air conditioner's interior air circulation. It drives the evaporator blower wheel that pulls warm cabin air across the cold evaporator coil and redistributes conditioned air through your RV. A failing motor -- showing up as weak airflow, unusual noise, or total shutdown -- directly tanks cooling performance even when the compressor is working fine.

NBK Parts manufactures replacement HVAC motors to OEM specifications. The 20048 is a single-phase, double-shafted, 2-speed motor with built-in thermal protection. Both shaft ends accept blower wheels, which is standard on Coleman Mach units that run separate indoor and outdoor fan assemblies off a shared motor. The 2-speed operation (high and low) maps directly to the speed settings on your Coleman Mach thermostat or control board.

What This Motor Replaces

The NBK 20048 is a direct replacement for Fasco part number 7184-0156, which was the original-equipment blower motor used across a wide range of Coleman Mach 6000 and 8000 series rooftop air conditioners. If your current motor carries a Fasco label or the Fasco part number, this NBK unit swaps in without modification.

Compatible Coleman Mach Models

This motor fits Coleman Mach 6000 and 8000 series rooftop air conditioners. Coleman Mach model numbers in these families typically begin with prefixes such as 6758, 8333, 8335, 8330, and related variants. Check the data tag on your unit's control box or shroud for the full model number. If your existing motor is a Fasco 7184-0156, fitment is confirmed regardless of the specific Coleman Mach model suffix.

Installation Notes

This motor is designed for direct swap replacement. The 4-1/2" bolt pattern, motor diameter, shaft dimensions, and electrical connections match the original Fasco unit. Key steps in a typical replacement:

• Disconnect shore power or generator before opening the unit -- the blower motor runs on 115V AC.
• Remove the interior ceiling assembly to access the blower section.
• Note the orientation of each blower wheel before removal -- they are directional.
• Disconnect the capacitor and motor wire leads, noting or photographing connections.
• Unbolt the motor from the mounting plate using the 4-1/2" bolt pattern.
• Transfer blower wheels to the new motor shafts (set screws or retaining clips typical).
• Install the included 7.5 MFD 370V capacitor in place of the old one.
• Reconnect leads, reassemble, and test both speed settings before buttoning up.

Warranty

This motor is backed by a 1-year limited manufacturer warranty from NBK Parts against defects in materials and workmanship.

Electrical Specifications

Physical Specifications

Capacitor (Included)

Part Numbers and Identity

Fitment and Application

Warranty and What Is Included