
Four Seasons 98581A HVAC Heater Core
Reliable HVAC Heater Core for Ford, Lincoln, and Mercury Vehicles
The Four Seasons Heater Core 98581A is designed to restore efficient heating performance in select Ford, Lincoln, and Mercury models. Engineered with durable aluminum construction, this heater core ensures consistent warmth and comfort during colder months.
- Core dimensions: 6 inches length, 9-3/8 inches width, 1-7/8 inches thickness
- Constructed from corrosion-resistant aluminum material
- Core depth of 1.875 inches and height of 6 inches for precise fitment
- Tube sizes: 0.625 inch (15.875 mm) and 0.750 inch (19.05 mm)
- Meets or exceeds OEM specifications for reliable performance
- Non-adjustable pipe positioning for direct replacement
Product Details and Specifications
This Four Seasons Heater Core 98581A is part of the Heater Core product line, which focuses on delivering quality HVAC components tailored to specific vehicle applications. The aluminum heater core design offers enhanced heat transfer and resistance to corrosion compared to traditional materials. With exact core dimensions and tube sizes, this heater core is engineered to fit Ford Continental, Lincoln Continental, Mercury Marquis, Grand Marquis, and LTD models, ensuring proper integration with the vehicle’s heating system.
Compatible Vehicles and Common Applications
This heater core is compatible with the following makes and models:
- Ford Continental
- Lincoln Continental
- Mercury Marquis
- Mercury Grand Marquis
- Mercury LTD
It is designed to address heating system issues such as:
- Insufficient cabin heat output
- Coolant leaks inside the vehicle
- Overheating due to clogged or damaged cores
- Unpleasant odors from a failing heater core
- Fogging or moisture buildup on interior windows
Installation Notes and Tips
When replacing the heater core 98581A, ensure the vehicle’s cooling system is properly drained before removal. Due to the non-adjustable pipe positioning, this part is a direct fit replacement, simplifying installation. It is recommended to inspect and replace any worn hoses or seals during installation to prevent future leaks. Proper reassembly and coolant refilling are essential to restore full heating functionality.
Quality Assurance and Warranty
The Four Seasons Heater Core 98581A meets or exceeds OEM standards, providing dependable performance and durability. Manufactured with corrosion-resistant aluminum, this heater core is built to withstand typical wear and tear. While specific warranty details are not provided, Four Seasons products generally adhere to strict quality control measures to ensure customer satisfaction and long-term reliability.
| Brand | Four Seasons |
| Part Number | 98581A |
| Position | Heater Core |
| Length | 6 |
| Thickness | 1-7/8 |
| Width | 9-3/8 |
| Core Material | Aluminum |
| Adjustable Pipe Positioning | No |
| Core Depth IN | 1.875 |
| Core Height IN | 6.000 |
| Core Width IN | 9.375 |
| Description | Heater cores |
| Meets / Exceeds OEM? | Yes |
| Style | Aluminum heater core |
| Tube 1 IN | 0.625 |
| Tube 1 MM | 15.875 |
| Tube 2 IN | 0.750 |
| Tube 2 MM | 19.050 |
| Type | Heater core /aluminum |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 1979 | Lincoln | Continental | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1976 | Ford | LTD | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1976 | Ford | LTD | Base | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1976 | Ford | LTD | Landau | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1976 | Ford | LTD | Brougham | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1976 | Lincoln | Continental | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1976 | Mercury | Grand Marquis | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1976 | Mercury | Marquis | Base | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1976 | Mercury | Marquis | Brougham | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1975 | Ford | LTD | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1975 | Ford | LTD | Base | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1975 | Ford | LTD | Landau | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1975 | Ford | LTD | Brougham | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1975 | Lincoln | Continental | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1975 | Mercury | Grand Marquis | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1975 | Mercury | Marquis | Base | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1975 | Mercury | Marquis | Brougham | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core |
| 1974 | Lincoln | Continental | N/A | Compatible with vehicles equipped with air conditioning.; Heater Core | |
| 1973 | Lincoln | Continental | N/A | Compatible with vehicles equipped with air conditioning.; 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.