Keep your Coleman Mach rooftop AC system breathing freely with this direct OEM replacement filter. Designed specifically for the 9330 series ceiling assembly, this filter traps dust, pet hair, and airborne debris before they reach the evaporator coil -- protecting your unit and maintaining consistent airflow throughout your rig.
The Coleman Mach 9330-3151 is the factory-specified replacement air filter for the 9330 series ceiling assembly used in Coleman Mach rooftop air conditioners. If your unit has been in service for a season or more, or if you notice reduced airflow, warmer outlet temps, or visible dust buildup on the return grille, this filter is the first thing to swap out.
A clogged or collapsed filter forces the blower motor to work harder, reduces cooling capacity, and can cause the evaporator coil to ice over. Replacing it on a regular schedule is one of the simplest and most cost-effective ways to extend the life of your Coleman Mach AC system.
Part 9330-3151 is the factory-specified filter for the 9330 series ceiling assembly -- no guesswork on fitment.
Traps dust, hair, and debris before they coat the coil and reduce heat transfer efficiency.
A clean filter keeps static pressure low so the blower moves rated CFM and your AC cools as designed.
Slides into the 9330 ceiling assembly without tools. No refrigerant, no wiring -- just pull the old filter and install the new one.
RV air conditioners cycle air from the living space, which can carry significantly more dust, pollen, pet dander, and road grit than a typical home. Full-timers and frequent travelers should plan to inspect the filter every 30 days of active use and replace it at least once per cooling season -- more often in dusty environments, desert travel, or if you camp with pets.
The 9330 series ceiling assembly uses a foam-style filter panel that is designed for replacement rather than washing. Attempting to clean a worn filter past its service life can cause it to shed material into the return air path, which defeats its purpose entirely.
Before installing, wipe down the filter slot and surrounding grille area with a dry cloth to remove accumulated dust. This prevents loose debris from bypassing the new filter on first startup.
This filter (9330-3151) is designed for the Coleman Mach 9330 series ceiling assembly. If your ceiling assembly has a different model number, verify compatibility before ordering. The ceiling assembly model number is typically printed on a label visible after removing the return air grille panel.
Keep a spare 9330-3151 filter on hand when traveling. Filter replacements are simple enough to do at camp, but tracking down an OEM Coleman Mach part at a rural RV dealer on a hot summer weekend is not always easy. Carrying one extra filter eliminates that problem entirely.