HomeHVAC > Motors, Core, Case and Related ComponentsFour Seasons 96571 HVAC Heater Core
Part #: 96571

Four Seasons 96571 HVAC Heater Core

Heater Core
⚙️ 55 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$50.26Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Heater Core
🚗Fitment: Ford and Mercury, Bronco, Cougar, F-100, F-150, F-250, F-350, Monarch, Montego, Mustang, Thunderbird, and Villager
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

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.

BrandFour Seasons
Part Number96571
PositionHeater Core
Length7-3/4
Thickness1-7/8
Width6
Core MaterialAluminum
Universal Or Specific FitOem specific
Gasket Or Seal IncludedNot included
Adjustable Pipe PositioningNo
Core Depth IN1.875
Core Height IN7.750
Core Width IN6.000
DescriptionHeater cores
Meets / Exceeds OEM?Yes
StyleAluminum heater core
Tube 1 IN0.625
Tube 1 MM15.875
Tube 2 IN0.625
Tube 2 MM15.875
TypeHeater core /aluminum

This part fits 55 vehicles. Search below:

YearMakeModelPositionNotes
1979FordBroncoN/ACompatible with models that do not have air conditioning.; Heater Core
1979FordF-100N/Aw/ High Output Heater; w/o AC; Heater Core
1979FordF-150N/Aw/ High Output Heater; w/o AC; Heater Core
1979FordF-250N/Aw/ High Output Heater; w/o AC; Heater Core
1979FordF-350N/Aw/ High Output Heater; w/o AC; Heater Core
1978FordBroncoN/ACompatible with models that do not have air conditioning.; Heater Core
1978FordF-100N/Aw/ High Output Heater; w/o AC; Heater Core
1978FordF-150N/Aw/ High Output Heater; w/o AC; Heater Core
1978FordF-250N/Aw/ High Output Heater; w/o AC; Heater Core
1978FordF-350N/Aw/ High Output Heater; w/o AC; Heater Core
1978FordThunderbirdN/ACompatible with models that do not have air conditioning.; Heater Core
1978MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1978MercuryMonarchN/ACompatible with models that do not have air conditioning.; Heater Core
1977FordF-100N/Aw/ High Output Heater; w/o AC; Heater Core
1977FordF-150N/Aw/ High Output Heater; w/o AC; Heater Core
1977FordF-250N/Aw/ High Output Heater; w/o AC; Heater Core
1977FordF-350N/Aw/ High Output Heater; w/o AC; Heater Core
1977FordThunderbirdN/ACompatible with models that do not have air conditioning.; Heater Core
1977MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1977MercuryMonarchN/ACompatible with models that do not have air conditioning.; Heater Core
1976FordF-100N/Aw/ High Output Heater; w/o AC; Heater Core
1976FordF-150N/Aw/ High Output Heater; w/o AC; Heater Core
1976FordF-250N/Aw/ High Output Heater; w/o AC; Heater Core
1976FordF-350N/Aw/ High Output Heater; w/o AC; Heater Core
1976MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1976MercuryMonarchN/ACompatible with models that do not have air conditioning.; Heater Core
1976MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1975FordF-100N/Aw/ High Output Heater; w/o AC; Heater Core
1975FordF-150N/Aw/ High Output Heater; w/o AC; Heater Core
1975FordF-250N/Aw/ High Output Heater; w/o AC; Heater Core
1975FordF-350N/Aw/ High Output Heater; w/o AC; Heater Core
1975MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1975MercuryMonarchN/ACompatible with models that do not have air conditioning.; Heater Core
1975MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1974FordF-100N/Aw/ High Output Heater; Heater Core
1974FordF-250N/Aw/ High Output Heater; Heater Core
1974FordF-350N/Aw/ High Output Heater; Heater Core
1974MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1974MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1973FordF-100N/Aw/ High Output Heater; Heater Core
1973FordF-250N/Aw/ High Output Heater; Heater Core
1973FordF-350N/Aw/ High Output Heater; Heater Core
1973FordMustangN/ACompatible with models that do not have air conditioning.; Heater Core
1973MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1973MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1972FordMustangN/ACompatible with models that do not have air conditioning.; Heater Core
1972MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1972MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1971FordMustangN/ACompatible with models that do not have air conditioning.; Heater Core
1971MercuryCougarN/ACompatible with models that do not have air conditioning.; Heater Core
1971MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1970MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1969MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1968MercuryMontegoN/ACompatible with models that do not have air conditioning.; Heater Core
1967MercuryVillagerN/Aw/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:

1004021562593181132921222501012793023990234603001554571609305660300168747021227022249010046902390230945719657198571C6DZ18476AC6DZ18476BC6OZ18476AC6OZ18476BC6OZ18746AFM9023H2286HT399023HT399023CZH101

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.