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Four Seasons 91800 HVAC Heater Core
Reliable Heater Core Replacement for Toyota Camry
The Four Seasons Heater Core 91800 is designed to restore efficient heating performance in your Toyota Camry. Engineered with durable aluminum construction, this heater core ensures consistent heat transfer and long-lasting operation.
- Core dimensions: 8-1/2 inches length, 6-1/2 inches width, 1-1/4 inches thickness
- Constructed from corrosion-resistant aluminum material
- Core depth of 1.25 inches, height of 8.5 inches, and width of 6.5 inches
- Tube diameter: 0.625 inches (15.875 mm) for both inlet and outlet
- Meets or exceeds OEM specifications for Toyota Camry applications
- Non-adjustable pipe positioning for direct fit installation
About the Four Seasons Heater Core Product Line
The Four Seasons Heater Core line focuses on delivering reliable HVAC components that meet or exceed original equipment manufacturer standards. The 91800 heater core is part of this line, offering a precise fit and durable aluminum core material to maintain optimal heating system performance in Toyota Camry vehicles.
Product Details and Specifications
This HVAC heater core features an aluminum core designed for efficient heat exchange and corrosion resistance. The core measures 8.5 inches in height, 6.5 inches in width, and 1.25 inches in depth, providing a compact yet effective heating solution. Both inlet and outlet tubes have a diameter of 0.625 inches (15.875 mm), ensuring compatibility with the Toyota Camry’s existing HVAC plumbing. The fixed pipe positioning simplifies installation by matching OEM configurations without the need for adjustments.
Common Issues Addressed by This Heater Core
- Insufficient cabin heat due to clogged or leaking heater core
- Coolant leaks inside the vehicle’s HVAC system
- Fogging or moisture buildup on interior windows
- Overheating caused by compromised heater core function
- Unpleasant odors from coolant contamination in the cabin
Installation Notes and Tips
When replacing the heater core in a Toyota Camry, ensure the cooling system is properly drained before removal. The Four Seasons 91800 heater core is designed for direct replacement without adjustable pipe positioning, so alignment with existing hoses should be straightforward. Inspect all related HVAC components and hoses for wear or damage during installation to maintain system integrity.
Quality Assurance and Warranty
The Four Seasons Heater Core 91800 meets or exceeds OEM standards, providing reliable performance and durability. This part is manufactured with high-quality aluminum core material to resist corrosion and extend service life. Please refer to Four Seasons’ warranty policy for specific coverage details.
| Brand | Four Seasons |
| Part Number | 91800 |
| Position | Heater Core |
| Length | 8-1/2 |
| Thickness | 1-1/4 |
| Width | 6-1/2 |
| Core Material | Aluminum |
| Adjustable Pipe Positioning | No |
| Core Depth IN | 1.250 |
| Core Height IN | 8.500 |
| Core Width IN | 6.500 |
| 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 3 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Toyota | Camry | N/A | To 8/98; Heater Core |
| 1998 | Toyota | Camry | N/A | Heater Core |
| 1997 | Toyota | Camry | N/A | 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.