
Four Seasons 90079 HVAC Heater Core - Front
Overview of Four Seasons Heater Core 90079
The Four Seasons Heater Core 90079 is designed specifically for Toyota 4Runner, Tacoma, and Tundra models. This aluminum heater core provides reliable heating performance and meets or exceeds OEM standards, ensuring compatibility and durability for your vehicle's HVAC system.
- Core dimensions: 8-5/8 inches length, 6-3/8 inches width, 1 inch thickness
- Constructed from durable aluminum material
- Core depth and height precisely 1.000 inch and 8.625 inches respectively
- Tube diameter: 0.625 inches (15.875 mm) for both inlet and outlet tubes
- Meets or exceeds original equipment manufacturer (OEM) specifications
- Non-adjustable pipe positioning for direct fitment
Four Seasons Heater Core Product Line Details
The Four Seasons Heater Core product line focuses on delivering reliable HVAC heater cores engineered to match or surpass OEM quality. The Heater Core line is designed to provide efficient heat transfer and long-lasting performance, making it a suitable replacement part for Toyota 4Runner, Tacoma, and Tundra vehicles requiring a dependable heating solution.
Product Description and Specifications
This HVAC heater core from Four Seasons features an aluminum core that offers corrosion resistance and efficient heat conduction. The core measures 8.625 inches in height, 6.375 inches in width, and 1 inch in thickness, providing a compact yet effective heating element. Both inlet and outlet tubes have a diameter of 0.625 inches (15.875 mm), ensuring proper coolant flow. The fixed pipe positioning simplifies installation by matching the original design without the need for adjustments.
Common Applications and Problem Solving
- Restores heating functionality in Toyota 4Runner, Tacoma, and Tundra HVAC systems
- Replaces leaking or clogged heater cores causing coolant loss or poor cabin heat
- Addresses issues with insufficient heat output during cold weather
- Eliminates unpleasant odors caused by damaged heater cores
- Prevents engine overheating related to heater core failures
Installation Notes and Tips
When installing the Four Seasons Heater Core 90079, ensure compatibility with your Toyota 4Runner, Tacoma, or Tundra model year and HVAC system. The non-adjustable pipe positioning requires precise alignment with existing hoses and fittings. It is recommended to flush the cooling system before installation to remove debris and prevent premature clogging. Professional installation is advised to avoid damage to the core or HVAC components.
Quality Assurance and Warranty
The Four Seasons Heater Core 90079 meets or exceeds OEM specifications, providing assurance of quality and fitment. Manufactured with corrosion-resistant aluminum, this heater core is built for durability and consistent performance. Please refer to Four Seasons' warranty policy for specific coverage details.
| Brand | Four Seasons |
| Part Number | 90079 |
| Position | Heater Core, Front |
| Length | 8-5/8 |
| Thickness | 1 |
| Width | 6-3/8 |
| Core Material | Aluminum |
| Adjustable Pipe Positioning | No |
| Core Depth IN | 1.000 |
| Core Height IN | 8.625 |
| Core Width IN | 6.375 |
| Description | Heater cores |
| Meets / Exceeds OEM? | Yes |
| Style | Aluminum heater core |
| Tube 1 IN | 0.625 |
| Tube 1 MM | 15.875 |
| Tube 2 IN | 0.625 |
| Tube 2 MM | 15.875 |
| Type | Heater core /aluminum |
This part fits 15 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2004 | Toyota | Tacoma | N/A | Heater Core |
| 2003 | Toyota | Tacoma | N/A | Heater Core |
| 2003 | Toyota | Tundra | N/A | To 8/02; Heater Core |
| 2002 | Toyota | 4Runner | Front | Heater Core |
| 2002 | Toyota | Tacoma | N/A | Heater Core |
| 2002 | Toyota | Tundra | N/A | Heater Core |
| 2001 | Toyota | 4Runner | Front | Heater Core |
| 2001 | Toyota | Tacoma | N/A | From 9/00; Heater Core |
| 2001 | Toyota | Tundra | N/A | Heater Core |
| 2000 | Toyota | 4Runner | Front | Heater Core |
| 2000 | Toyota | Tundra | N/A | Heater Core |
| 1999 | Toyota | 4Runner | Front | Heater Core |
| 1998 | Toyota | 4Runner | Front | Heater Core |
| 1997 | Toyota | 4Runner | Front | Heater Core |
| 1996 | Toyota | 4Runner | Front | From 11/95; Heater Core |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.