Four Seasons 92310 HVAC Heater Core - Front

Four Seasons 92310 Heater Core Overview

The Four Seasons 92310 heater core is an aluminum HVAC replacement built for direct-fit service in a wide range of import and compact vehicles. It is specified as an OE-style heater core that meets or exceeds OEM requirements, with dimensions of 5-7/8 in. height, 7 in. width, and 1 in. depth.

Use this heater core for Nissan Frontier, Pathfinder, Xterra, Maxima, Altima, Sentra, Quest, 300ZX, 240SX, and related Subaru and INFINITI applications where the original core has leaked, restricted flow, or lost heat output. This part cross-references Spectra Premium 93002 and TYC 96083 for the same application.

Key Features

• Four Seasons Heater Core line, part number 92310
• Aluminum heater core construction for HVAC service
• Meets or exceeds OEM specifications
• Core dimensions: 5-7/8 in. height, 7 in. width, 1 in. depth
• Tube size: 0.75 in. / 19.05 mm on both connections
• Direct replacement style for heater core repair work
• Compatible with aluminum and copper/brass design applications listed in fitment

Detailed Description

Four Seasons 92310 is an aluminum HVAC heater core engineered for vehicles that rely on a compact, efficient heat exchanger inside the heater case. The Four Seasons Heater Core product line focuses on replacement cores that match OE-style dimensions and connection sizing, making this unit a practical choice for restoring cabin heat in vehicles such as the Subaru Legacy, Subaru Outback, Subaru Forester, Subaru Impreza, and Nissan Maxima. The part number 92310 is also listed across multiple aftermarket references, which helps simplify cross-checking during repair planning.

Compatible With 2003-2006 Subaru Baja, 2002-2004 Nissan Frontier, 1996-2004 Nissan Pathfinder, 2001-2004 Nissan Xterra, 2000-2004 Subaru Legacy, 2000-2004 Subaru Outback, 1999-2003 Acura TL, and additional listed applications across INFINITI, Nissan, Mercury, and Subaru models.

Common Problems This Part Addresses

• Weak or uneven cabin heat
• Coolant seepage from a leaking heater core
• Restricted coolant flow through the HVAC core
• Fogging or sweet coolant odor inside the cabin
• Heat loss caused by a corroded or damaged original core

Installation Notes and Tips

Verify the vehicle’s heater core style, connection layout, and case configuration before installation. This listing includes fitments for both w/ fittings and w/o fittings notes, so match the existing HVAC setup carefully on Subaru Baja, Legacy, and Outback applications as well as other listed vehicles. Confirm tube diameter and core dimensions against the removed part before reassembly. Because heater core replacement often requires access through the HVAC case, inspect hoses, clamps, and coolant condition during service.

Quality Assurance

Four Seasons identifies this heater core as meeting or exceeding OEM requirements, supporting OE-style replacement standards for HVAC repair. The aluminum construction and application-specific sizing are intended to align with factory fitment expectations across the listed Nissan, Subaru, Acura, and INFINITI vehicles.

• Fits 2003-2006 Subaru Baja, N/A
• Fits 2002-2004 Nissan Frontier, N/A
• Fits 1996-2004 Nissan Pathfinder, N/A
• Fits 2001-2004 Nissan Xterra, N/A
• Fits 2000-2004 Subaru Legacy, N/A
• Fits 2000-2004 Subaru Outback, N/A
• Fits 2001-2003 Acura CL, N/A
• Fits 1999-2003 Acura TL, N/A
• Fits 1997-2003 INFINITI QX4, N/A
• Fits 1995-2002 Nissan Maxima, N/A
• Fits 1998-2002 Subaru Forester, N/A
• Fits 1993-2001 Nissan Altima, N/A
• Fits 1993-2001 Subaru Impreza, N/A
• Fits 1991-1999 Nissan Sentra, N/A
• Fits 1993-1998 Nissan Quest, Front
• Fits 1990-1996 Nissan 300ZX, N/A