When your rooftop AC is running but not cooling like it used to, a worn, cracked, or broken fan blade is a common culprit. This OEM-spec replacement blade from Coleman Mach restores proper airflow through the condenser and evaporator sections of your 9000 or 49000 series unit -- getting your rig cool again without the cost of a full unit replacement.
The Coleman Mach 1472-5021 is a direct-fit replacement fan blade engineered specifically for the 9000 and 49000 series rooftop air conditioner families -- two of the most widely installed AC platforms on Class A, Class C, and fifth-wheel RVs. Using a genuine Coleman Mach part number ensures you get the correct blade pitch, hub diameter, and rotational balance that the original unit was designed around.
Fan blade failure is one of the more common service needs on rooftop RV AC units. UV exposure, vibration during travel, and years of seasonal cycling can cause blades to crack, chip, or lose a tip -- all of which reduce airflow and put additional load on the fan motor. Replacing the blade promptly protects the motor from overwork and keeps your cooling system performing at rated capacity.
Designed to Coleman Mach specs for 9000 and 49000 series units -- no modification or adapter required.
Maintains the factory-designed airflow angle for proper condenser and evaporator cooling performance.
Factory-balanced blade reduces vibration and motor bearing wear during extended operation.
Coleman Mach part 1472-5021 (vendor part CMN1472-5021) -- verifiable against your unit's service tag.
A damaged blade creates uneven airflow and imbalance. The fan motor must work harder to compensate, drawing more current and generating excess heat. Over time this shortens motor life -- turning a low-cost blade replacement into a much more expensive motor or full-unit replacement. If you hear unusual vibration, rattling from the AC shroud, or see visible cracks or missing tips on the blade, replacement is the right call before the next camping season.
Fan blade replacement on Coleman Mach rooftop units is a straightforward service task for a competent DIYer comfortable working on the rooftop. The process typically involves removing the AC shroud, disconnecting power at the breaker, removing the retaining nut or clip that secures the blade to the motor shaft, swapping the blade, and reinstalling in reverse order. Always shut off shore power and disconnect the battery before accessing any AC components.
Coleman Mach produced multiple fan blade configurations across the 9000 and 49000 series. Cross-reference part number 1472-5021 against your unit's model and serial number on the rooftop label to confirm this is the correct blade for your specific unit variant before installation.
While the shroud is off for blade replacement, inspect the fan motor shaft for corrosion, check the capacitor for bulging or leaking, and clear any debris from the condenser coil fins. A few extra minutes during this access saves another rooftop trip later in the season.