Four Seasons 92085 HVAC Heater Core - Rear

Four Seasons 92085 Rear Heater Core

The Four Seasons 92085 heater core is an aluminum HVAC replacement built for rear heating systems in select Acura and Honda vehicles. With OE-matching dimensions and direct-fit tube sizing, it supports proper coolant flow through the rear heater circuit.

Compatible with 2007-2013 Acura MDX, rear heater core applications and 2009-2015 Honda Pilot, rear heater core applications, this part is built to meet or exceed OEM requirements.

Key Features

• Aluminum heater core construction for HVAC service replacement
• Core dimensions: 5-3/4 in. length, 5 in. width, 1 in. thickness
• Core height: 5.750 in.; core width: 5.000 in.; core depth: 1 in.
• Tube size: 0.6875 in. (17.4625 mm) on both connections
• Meets or exceeds OEM specifications
• Direct replacement style for rear HVAC heater core service

Product Details

Four Seasons Heater Core 92085 is an aluminum heater core designed for rear HVAC systems where compact size and accurate tube placement matter. The aluminum core material supports efficient heat transfer, while the listed dimensions and tube diameters help match the original rear heater core layout in the vehicle. This part cross-references Spectra Premium 98103 for the same application.

Use this Four Seasons 92085 heater core when servicing rear heat output in 2007-2013 Acura MDX and 2009-2015 Honda Pilot models. The part number 92085 is also referenced in aftermarket catalogs for related rear heater core applications.

Common Issues This Part Can Address

• Weak or inconsistent rear cabin heat
• Coolant seepage from a damaged heater core
• Restricted coolant flow through the rear HVAC circuit
• Fogging or sweet coolant odor caused by heater core leakage
• Loss of rear passenger comfort during cold-weather driving

Installation Notes and Tips

Verify the rear HVAC heater core dimensions, tube diameter, and connection layout before installation. Drain the cooling system as required, inspect hoses and seals for wear, and flush the system if contamination is present. Confirm fitment for the exact vehicle year and rear position before reassembly.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements, making it a direct replacement option for rear heater core service on the specified Acura MDX and Honda Pilot applications.