HomeHVAC > Motors, Core, Case and Related ComponentsFour Seasons 98590A HVAC Heater Core
Part #: 98590A

Four Seasons 98590A HVAC Heater Core

Heater Core
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Heater Core
🚗Fitment: Ford and Lincoln, Continental and Thunderbird
🔄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 Lincoln Vehicles

The Four Seasons Heater Core 98590A is designed to restore efficient heating performance in your Ford Continental or Lincoln Thunderbird. Engineered with durable aluminum construction, this heater core ensures consistent heat transfer and long-lasting operation.

  • Core dimensions: 8-3/4" length, 6" width, 1-7/8" thickness
  • Constructed from corrosion-resistant aluminum material
  • Core depth of 1.875 inches and height of 8.75 inches for precise fitment
  • Tube sizes: 0.625" (15.875 mm) and 0.75" (19.05 mm) for proper coolant flow
  • Meets or exceeds OEM specifications for reliable performance

Four Seasons Heater Core Product Line Overview

The Four Seasons Heater Core line focuses on delivering quality HVAC components that meet or exceed original equipment manufacturer standards. This aluminum heater core model 98590A is part of that line, offering a balance of durability and efficient heat exchange tailored for specific Ford and Lincoln models.

Detailed Product Description

This HVAC heater core is specifically designed for use in Ford Continental and Lincoln Thunderbird vehicles, ensuring compatibility and optimal performance. The aluminum core material provides excellent heat conductivity while resisting corrosion, which helps maintain system integrity over time. With fixed pipe positioning and precise core dimensions, the 98590A heater core fits securely within the HVAC system without modification.

Common Issues Addressed by This Heater Core

  • Insufficient cabin heat due to clogged or leaking heater core
  • Coolant leaks inside the vehicle causing fogging or damp carpets
  • Overheating HVAC system components from inefficient heat exchange
  • Unpleasant odors caused by coolant contamination in the ventilation system
  • Reduced defrosting capability impacting windshield visibility

Installation Notes and Tips

Ensure the vehicle is cooled down and coolant system pressure is relieved before beginning installation. This heater core requires no adjustable pipe positioning, simplifying the replacement process. Verify hose connections match the 0.625" and 0.75" tube sizes for proper coolant flow. It is recommended to flush the cooling system to remove debris before installing the new core to prevent premature clogging.

Quality Assurance and Warranty

The Four Seasons Heater Core 98590A meets or exceeds OEM standards, providing reliable heating performance for your Ford Continental or Lincoln Thunderbird. Manufactured with corrosion-resistant aluminum, this part is built for durability. Please refer to Four Seasons' warranty policy for specific coverage details.

BrandFour Seasons
Part Number98590A
PositionHeater Core
Length8-3/4
Thickness1-7/8
Width6
Core MaterialAluminum
Adjustable Pipe PositioningNo
Core Depth IN1.875
Core Height IN8.750
Core Width IN6.000
DescriptionHeater cores
Meets / Exceeds OEM?Yes
StyleAluminum heater core
Tube 1 IN0.625
Tube 1 MM15.875
Tube 2 IN0.750
Tube 2 MM19.050
TypeHeater core /aluminum

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
1972LincolnContinentalN/AHeater Core
1971FordThunderbirdN/AHeater Core
1971LincolnContinentalN/AHeater Core
1970FordThunderbirdN/AHeater Core
1970LincolnContinentalN/AHeater Core
1969FordThunderbirdN/AHeater Core
1968FordThunderbirdN/AHeater Core
1967FordThunderbirdN/AHeater 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:

15626051812067220425013027932139903655459060932266030137022049010056903690360945909859098590AC8SZ18476AC9SZ18476AD0SZ18476AFM9036H2201HT399036ZH130

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