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Part #: 98559A

Four Seasons 98559A HVAC Heater Core

Heater Core
⚙️ 31 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: Chevrolet and GMC, Blazer, C10 Suburban, C20 Suburban, Jimmy, K10 Suburban, and K20 Suburban
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Reliable Heater Core Replacement for Chevrolet and GMC Vehicles

The Four Seasons Heater Core 98559A is designed to restore efficient heating performance in select Chevrolet and GMC models. Engineered with durable aluminum construction, this heater core ensures consistent heat transfer and long-lasting operation for your vehicle's HVAC system.

  • Core dimensions: 6 inches length, 8-1/2 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) for proper coolant flow
  • Meets or exceeds OEM specifications for reliable performance

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on providing high-quality aluminum heater cores designed to meet or exceed original equipment manufacturer standards. This product line emphasizes durability and efficient heat exchange, making it suitable for a range of HVAC applications in Chevrolet and GMC vehicles. The 98559A part number is part of this line, offering a direct replacement solution for specific models.

Detailed Product Description

This HVAC heater core features an aluminum core that provides excellent heat transfer and resistance to corrosion, which is critical for maintaining the longevity of your vehicle’s heating system. The core dimensions of 6 inches in length, 8-1/2 inches in width, and 1-7/8 inches in thickness ensure a precise fit in the HVAC housing. The heater core includes two tubes sized at 0.625 inch and 0.750 inch, facilitating proper coolant circulation. Designed without adjustable pipe positioning, this heater core is engineered for direct replacement in compatible Chevrolet and GMC models.

Compatible Vehicles and Common Applications

  • Chevrolet Blazer heater core replacement
  • GMC Jimmy heater core repair
  • Chevrolet C10 Suburban heating system restoration
  • GMC K10 and K20 Suburban heater core maintenance
  • Chevrolet C20 Suburban HVAC heater core replacement

Installation Notes and Tips

When installing the Four Seasons Heater Core 98559A, ensure the HVAC system is properly drained before removal of the old core to prevent coolant spillage. Verify the core dimensions and tube sizes match your vehicle’s specifications. Since this heater core does not feature adjustable pipe positioning, alignment with existing hoses is critical. Follow manufacturer guidelines for secure mounting and hose connections to avoid leaks.

Quality Assurance and Warranty

The Four Seasons Heater Core 98559A meets or exceeds OEM standards, providing dependable performance for your Chevrolet or GMC vehicle. Manufactured with corrosion-resistant aluminum, this heater core is built to withstand typical operating conditions. Please refer to Four Seasons’ warranty policy for specific coverage details.

BrandFour Seasons
Part Number98559A
PositionHeater Core
Length6
Thickness1-7/8
Width8-1/2
Core MaterialAluminum
Adjustable Pipe PositioningNo
Core Depth IN1.875
Core Height IN6.000
Core Width IN8.500
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 31 vehicles. Search below:

YearMakeModelPositionNotes
1972ChevroletBlazerN/ACompatible with models that do not have air conditioning.; Heater Core
1972ChevroletC10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1972ChevroletC20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1972ChevroletK10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1972ChevroletK20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1972GMCJimmyN/ACompatible with models that do not have air conditioning.; Heater Core
1971ChevroletBlazerN/ACompatible with models that do not have air conditioning.; Heater Core
1971ChevroletC10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1971ChevroletC20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1971ChevroletK10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1971ChevroletK20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1971GMCJimmyN/ACompatible with models that do not have air conditioning.; Heater Core
1970ChevroletBlazerN/ACompatible with models that do not have air conditioning.; Heater Core
1970ChevroletC10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1970ChevroletC20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1970ChevroletK10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1970ChevroletK20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1970GMCJimmyN/ACompatible with models that do not have air conditioning.; Heater Core
1969ChevroletBlazerN/ACompatible with models that do not have air conditioning.; Heater Core
1969ChevroletC10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1969ChevroletC20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1969ChevroletK10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1969ChevroletK20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1968ChevroletC10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1968ChevroletC20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1968ChevroletK10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1968ChevroletK20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletC10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletC20 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletK10 SuburbanN/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletK20 SuburbanN/ACompatible with models that do not have 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:

156000615600951563339181132319131999227525012126060279131301516939906746030255248406155455966030257022757091408231278901006590679067094559961209855998559AE812056GM9067H2238HT399067HT399067CZH121

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

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