
Four Seasons 90071 HVAC Heater Core - Front
Reliable Heater Core Replacement for Lexus Land Cruiser and Toyota LX470
The Four Seasons Heater Core 90071 is designed to restore efficient heating performance in your Lexus Land Cruiser or Toyota LX470. Crafted from durable aluminum, this heater core ensures consistent heat transfer and long-lasting operation.
- Core dimensions: 8-3/4 inches length, 5-3/4 inches width, 1 inch thickness
- Constructed with high-quality aluminum core material
- Tube diameter: 0.625 inches (15.875 mm) for both inlet and outlet tubes
- Meets or exceeds OEM specifications for reliable fit and function
- Non-adjustable pipe positioning for direct replacement
About the Four Seasons Heater Core Product Line
The Four Seasons Heater Core line focuses on providing OEM-quality HVAC heater cores engineered for precise fitment and efficient heat exchange. The 90071 model is part of this line, offering an aluminum core design that balances durability and thermal performance, specifically tailored for select Lexus and Toyota models.
Product Details and Specifications
This HVAC heater core features an aluminum core measuring 8.75 inches in height, 5.75 inches in width, and 1 inch in depth. Both inlet and outlet tubes have a diameter of 0.625 inches (15.875 mm), ensuring compatibility with the original vehicle plumbing. The fixed pipe positioning simplifies installation by matching the factory setup without requiring adjustments. Designed to meet or exceed OEM standards, the Four Seasons 90071 heater core provides dependable heating performance for your Lexus Land Cruiser or Toyota LX470.
Common Issues Addressed by This Heater Core
- Insufficient cabin heat due to clogged or leaking heater core
- Coolant leaks inside the vehicle causing foggy windows or damp carpets
- Overheating engine symptoms related to heater core failure
- Unpleasant odors from coolant entering the HVAC system
- Reduced HVAC system efficiency impacting passenger comfort
Installation Notes and Tips
When replacing the heater core in your Lexus Land Cruiser or Toyota LX470, ensure the cooling system is properly drained before removal. The Four Seasons 90071 heater core features fixed pipe positioning, so no adjustments are necessary during installation. Verify all hose connections are secure and free of leaks after installation. It is recommended to flush the cooling system to remove any debris that could affect heater core performance.
Quality Assurance and Warranty
The Four Seasons Heater Core 90071 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. This part undergoes rigorous quality control to maintain durability and heat transfer efficiency. Please refer to Four Seasons' warranty policy for specific coverage details.
| Brand | Four Seasons |
| Part Number | 90071 |
| Position | Heater Core, Front |
| Length | 8-3/4 |
| Thickness | 1 |
| Width | 5-3/4 |
| Core Material | Aluminum |
| Adjustable Pipe Positioning | No |
| Core Depth IN | 1.000 |
| Core Height IN | 8.750 |
| Core Width IN | 5.750 |
| 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 16 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2007 | Toyota | Land Cruiser | Front | Heater Core |
| 2006 | Toyota | Land Cruiser | Front | Heater Core |
| 2005 | Toyota | Land Cruiser | Front | Heater Core |
| 2004 | Toyota | Land Cruiser | Front | Heater Core |
| 2003 | Lexus | LX470 | Front | w/o Cold Spec.; Heater Core |
| 2003 | Toyota | Land Cruiser | Front | Heater Core |
| 2002 | Lexus | LX470 | Front | w/o Cold Spec.; Heater Core |
| 2002 | Toyota | Land Cruiser | Front | Heater Core |
| 2001 | Lexus | LX470 | Front | w/o Cold Spec.; Heater Core |
| 2001 | Toyota | Land Cruiser | Front | Heater Core |
| 2000 | Lexus | LX470 | Front | w/o Cold Spec.; Heater Core |
| 2000 | Toyota | Land Cruiser | Front | Heater Core |
| 1999 | Lexus | LX470 | Front | w/o Cold Spec.; Heater Core |
| 1999 | Toyota | Land Cruiser | Front | Heater Core |
| 1998 | Lexus | LX470 | Front | w/o Cold Spec.; Heater Core |
| 1998 | Toyota | Land Cruiser | Front | 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.