Four Seasons 90046 HVAC Heater Core

Heater Core for Ford Escape, Mariner, Tribute

Restore cabin heat with this Four Seasons heater core, part number 90046. Built with an aluminum core and OE-style dimensions, it is a direct replacement for select Ford, Mercury, and Mazda HVAC systems that use this heater core design.

Key Features

• Four Seasons Heater Core, part number 90046
• Aluminum core construction for efficient heat transfer
• Core dimensions: 7 in. height, 5-7/8 in. width, 1-7/8 in. thickness
• Tube size: 5/8 in. inlet and outlet connections
• Meets or exceeds OEM requirements
• OE-style aluminum heater core design

Product Details

The Four Seasons 90046 heater core is engineered for HVAC service on 2001-2007 Ford Escape, 2005-2007 Mercury Mariner, 2001-2006 Mazda Tribute, 1993-1997 Ford Probe, 1993-1997 Mazda 626, and 1993-1997 Mazda MX-6. This aluminum heater core is sized to match the listed applications and supports proper coolant-to-air heat exchange for dependable defrost and cabin heating performance. Four Seasons heater core 90046 is a practical OE-style replacement for vehicles with aluminum or copper/brass design notes in the fitment data.

This part cross-references Spectra Premium 93046 for the same application.

What It Helps Fix

• Weak or inconsistent cabin heat
• Coolant odor inside the vehicle
• Fogging or poor windshield defrost performance
• Heat loss caused by a leaking or restricted heater core
• HVAC performance issues tied to an aging core

Installation Notes and Tips

Verify the core dimensions, tube size, and HVAC configuration before installation. Confirm the vehicle’s heater hose routing and compare the existing core to the listed measurements for proper fitment. Because this part is used in HVAC service, inspect related hoses, clamps, and coolant condition during replacement. Fits 2001-2007 Ford Escape, N/A; Fits 2005-2007 Mercury Mariner, N/A; Fits 2001-2006 Mazda Tribute, N/A; Fits 1993-1997 Ford Probe, N/A; Fits 1993-1997 Mazda 626, N/A; Fits 1993-1997 Mazda MX-6, N/A.

Quality Assurance

Four Seasons manufactures HVAC replacement components with OE-style fit and performance targets. This heater core is listed as meeting or exceeding OEM requirements for the specified applications.