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Four Seasons 96571 HVAC Heater Core
Reliable Heater Core Replacement for Ford and Mercury Vehicles
The Four Seasons Heater Core part number 96571 is designed to restore efficient heating performance in select Ford and Mercury models. Engineered with durable aluminum construction, this OEM specific heater core ensures proper fit and reliable operation for your vehicle's HVAC system.
- Core dimensions: 7-3/4 inches length, 6 inches width, 1-7/8 inches thickness
- Constructed from corrosion-resistant aluminum material
- OEM specific fit for Ford Bronco, F-100, F-150, F-250, F-350, Mustang, Thunderbird, Mercury Cougar, Monarch, Montego, and Villager
- Tube diameter: 0.625 inches (15.875 mm) for both inlet and outlet tubes
- Meets or exceeds original equipment manufacturer standards
Four Seasons Heater Core Product Line Overview
The Four Seasons Heater Core line focuses on delivering precise replacements that match OEM specifications for a range of vehicles. This ensures compatibility and dependable heating system performance. The aluminum heater core design offers durability and efficient heat transfer, making it suitable for restoring factory heating capabilities in your Ford or Mercury vehicle.
Product Details and Specifications
This heater core features a core height of 7.75 inches and a core depth of 1.875 inches, providing a compact yet effective heating element. The aluminum core material resists corrosion and supports long-term durability. The part is designed without adjustable pipe positioning and does not include gaskets or seals, so these components should be sourced separately if needed. The dual 0.625-inch tubes facilitate coolant flow to maintain optimal cabin temperature.
Common Applications and Issues Addressed
- Restores heating function in Ford Bronco and F-150 HVAC systems
- Replaces leaking or clogged heater cores in Mercury Cougar and Monarch
- Solves insufficient cabin heat problems in Ford Mustang and Thunderbird
- Addresses coolant leaks inside the vehicle cabin
- Prevents engine overheating caused by heater core failure
Installation Notes and Tips
Installation requires removal of the HVAC housing to access the heater core. Since this part does not include gaskets or seals, ensure replacement seals are on hand to prevent leaks. Verify tube connections match the 0.625-inch diameter specifications for proper fit. Follow vehicle-specific service manuals for detailed removal and installation procedures to maintain system integrity.
Quality Assurance and Warranty
The Four Seasons Heater Core 96571 meets or exceeds OEM standards for fit, form, and function. Manufactured with corrosion-resistant aluminum, it is built to provide reliable heating performance. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Four Seasons |
| Part Number | 96571 |
| Position | Heater Core |
| Length | 7-3/4 |
| Thickness | 1-7/8 |
| Width | 6 |
| Core Material | Aluminum |
| Universal Or Specific Fit | Oem specific |
| Gasket Or Seal Included | Not included |
| Adjustable Pipe Positioning | No |
| Core Depth IN | 1.875 |
| Core Height IN | 7.750 |
| Core Width IN | 6.000 |
| 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 55 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1979 | Ford | Bronco | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1979 | Ford | F-100 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1979 | Ford | F-150 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1979 | Ford | F-250 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1979 | Ford | F-350 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1978 | Ford | Bronco | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1978 | Ford | F-100 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1978 | Ford | F-150 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1978 | Ford | F-250 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1978 | Ford | F-350 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1978 | Ford | Thunderbird | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1978 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1978 | Mercury | Monarch | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1977 | Ford | F-100 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1977 | Ford | F-150 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1977 | Ford | F-250 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1977 | Ford | F-350 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1977 | Ford | Thunderbird | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1977 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1977 | Mercury | Monarch | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1976 | Ford | F-100 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1976 | Ford | F-150 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1976 | Ford | F-250 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1976 | Ford | F-350 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1976 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1976 | Mercury | Monarch | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1976 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1975 | Ford | F-100 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1975 | Ford | F-150 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1975 | Ford | F-250 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1975 | Ford | F-350 | N/A | w/ High Output Heater; w/o AC; Heater Core |
| 1975 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1975 | Mercury | Monarch | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1975 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1974 | Ford | F-100 | N/A | w/ High Output Heater; Heater Core |
| 1974 | Ford | F-250 | N/A | w/ High Output Heater; Heater Core |
| 1974 | Ford | F-350 | N/A | w/ High Output Heater; Heater Core |
| 1974 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1974 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1973 | Ford | F-100 | N/A | w/ High Output Heater; Heater Core |
| 1973 | Ford | F-250 | N/A | w/ High Output Heater; Heater Core |
| 1973 | Ford | F-350 | N/A | w/ High Output Heater; Heater Core |
| 1973 | Ford | Mustang | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1973 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1973 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1972 | Ford | Mustang | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1972 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1972 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1971 | Ford | Mustang | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1971 | Mercury | Cougar | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1971 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1970 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1969 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1968 | Mercury | Montego | N/A | Compatible with models that do not have air conditioning.; Heater Core |
| 1967 | Mercury | Villager | N/A | w/o AC; 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.