Frequently Asked Questions About Ford Aeromax Truck Heat & AC Parts

What years and models of Ford Aeromax trucks do these HVAC parts fit?

Our heat and AC parts are designed to fit Ford Aeromax trucks manufactured from 1988 to 1999. This includes all Aeromax models such as the L9000, LTL9000, and LA9000 series. Always verify your specific truck's VIN and production year before ordering, as some components may vary between early and late production models. If you're unsure about compatibility, our customer service team can help verify fitment with your truck's serial number.

Are aftermarket AC compressors and heater cores as reliable as OEM parts?

The aftermarket HVAC components we carry meet or exceed OEM specifications and often come with warranties ranging from 1 to 3 years. Our heater cores feature aluminum or copper-brass construction with reinforced tanks to prevent common failure points. AC compressors are new or professionally remanufactured units that undergo rigorous testing. Many drivers report aftermarket parts lasting just as long as factory originals when properly installed and maintained, often at 40-60% less cost than dealership parts.

What tools and expertise do I need to replace a heater core or evaporator?

Heater core replacement typically requires basic hand tools, including screwdrivers, socket sets, and pliers. You'll need to drain the cooling system and may need to remove portions of the dashboard. Most experienced mechanics can complete the job in 3-5 hours. Evaporator replacement is more complex, requiring AC system evacuation and recharge equipment. We recommend professional installation for AC components unless you have refrigerant handling certification and proper recovery equipment.

Why is my Aeromax AC blowing warm air even with a new compressor?

Common causes include low refrigerant levels, faulty expansion valves, clogged orifice tubes, or electrical issues with the clutch cycling switch. Before replacing major components, check for proper refrigerant charge (typically 2.5-3.5 lbs of R134a for converted systems), inspect the condenser for debris blockage, and verify the compressor clutch is engaging. Many Aeromax trucks have been converted from R12 to R134a, which may require different pressure switches and receiver-driers for optimal performance.

What's the difference between standard and heavy-duty blower motors for the Aeromax?

Standard blower motors typically draw 15-20 amps and are suitable for most driving conditions. Heavy-duty motors draw 20-25 amps and feature sealed bearings, stronger magnets, and reinforced shafts designed for continuous operation in extreme conditions. Heavy-duty units are recommended for trucks operating in dusty environments, those with auxiliary sleeper units, or vehicles that idle extensively. Both types fit the same mounting locations, but heavy-duty motors may require upgrading the blower motor resistor and wiring connections.