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Part #: 98617

Four Seasons 98617 HVAC Heater Core - Front

Heater Core, Front
⚙️ 130 vehicles fit this part
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Heater Core, Front
🚗Fitment: Chevrolet and GMC, G10, G20, G30, P30, and P3500
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Reliable Heater Core Replacement for Chevrolet and GMC Vans

The Four Seasons Heater Core part number 98617 is designed to restore efficient heating performance in your Chevrolet G10, G20, G30, and GMC P30, P3500 vans. Engineered with durable aluminum construction, this heater core ensures consistent heat transfer and long-lasting operation.

  • Core dimensions: 9-1/8 inches length, 7-1/4 inches width, 1-7/8 inches thickness
  • Constructed from corrosion-resistant aluminum material
  • Core depth of 1.875 inches and height of 9.125 inches for precise fitment
  • Tube sizes: 0.625 inch (15.875 mm) and 0.750 inch (19.050 mm) for proper coolant flow
  • Meets or exceeds OEM specifications for reliable performance
  • Non-adjustable pipe positioning for direct replacement

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on providing high-quality HVAC components that meet or exceed original equipment manufacturer standards. This aluminum heater core is part of that line, offering durability and efficient heat exchange for your vehicle's heating system. The design ensures compatibility with specific Chevrolet and GMC van models, maintaining factory fit and function.

Detailed Product Description

This HVAC heater core is crafted from aluminum, a material known for its excellent thermal conductivity and resistance to corrosion. With precise core dimensions of 9.125 inches in height, 7.25 inches in width, and a depth of 1.875 inches, it fits directly into the heating system of Chevrolet G10, G20, G30, and GMC P30, P3500 vans. The two tubes, sized at 0.625 inch and 0.750 inch respectively, facilitate efficient coolant flow, ensuring optimal heat transfer to the vehicle's cabin. The non-adjustable pipe positioning simplifies installation by matching the original equipment layout.

Common Issues Addressed by This Heater Core

  • Insufficient cabin heat during cold weather
  • Coolant leaks inside the vehicle's HVAC system
  • Overheating caused by restricted coolant flow
  • Fogging or moisture buildup on interior windows
  • Unpleasant odors from a failing heater core

Installation Notes and Tips

When replacing the heater core in Chevrolet G10, G20, G30, or GMC P30, P3500 vans, ensure the cooling system is properly drained before removal. Handle the aluminum core carefully to avoid damage to the fins and tubes. Since this part has fixed pipe positioning, verify alignment with existing hoses to prevent leaks. It is recommended to flush the cooling system to remove debris before installing the new heater core.

Quality Assurance and Warranty

The Four Seasons Heater Core 98617 meets or exceeds OEM standards, providing reliable performance and durability. Manufactured with corrosion-resistant aluminum, it is designed to withstand the demands of vehicle heating systems. Please refer to Four Seasons' warranty policy for specific coverage details.

BrandFour Seasons
Part Number98617
PositionHeater Core, Front
Length9-1/8
Thickness1-7/8
Width7-1/4
Core MaterialAluminum
Adjustable Pipe PositioningNo
Core Depth IN1.875
Core Height IN9.125
Core Width IN7.250
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 130 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1999ChevroletP30N/ACompatible with models that do not have air conditioning.; Heater Core
1999GMCP3500N/ACompatible with models that do not have air conditioning.; Heater Core
1998ChevroletP305.7LV8N/ACompatible with models that do not have air conditioning.; Heater Core
1998ChevroletP306.5LV8N/ACompatible with models that do not have air conditioning.; Heater Core
1998ChevroletP304.3LV6N/ACompatible with models that do not have air conditioning.; Heater Core
1998ChevroletP307.4LV8N/ACompatible with models that do not have air conditioning.; Heater Core
1998GMCP3500N/ACompatible with models that do not have air conditioning.; Heater Core
1997ChevroletP30N/ACompatible with models that do not have air conditioning.; Heater Core
1997GMCP3500N/ACompatible with models that do not have air conditioning.; Heater Core
1996ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1996ChevroletP30FrontCompatible with models that do not have air conditioning.; Heater Core
1996GMCG3500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1996GMCP3500FrontCompatible with models that do not have air conditioning.; Heater Core
1995ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1995ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1995ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1995ChevroletP30FrontCompatible with models that do not have air conditioning.; Heater Core
1995GMCG1500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1995GMCG2500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1995GMCG3500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1995GMCP3500FrontCompatible with models that do not have air conditioning.; Heater Core
1994ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1994ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1994ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1994ChevroletP30FrontCompatible with models that do not have air conditioning.; Heater Core
1994GMCG1500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1994GMCG2500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1994GMCG3500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1994GMCP3500FrontCompatible with models that do not have air conditioning.; Heater Core
1993ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1993ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1993ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1993ChevroletP30FrontCompatible with models that do not have air conditioning.; Heater Core
1993GMCG1500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1993GMCG2500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1993GMCG3500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1993GMCP3500FrontCompatible with models that do not have air conditioning.; Heater Core
1992ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1992ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1992ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1992GMCG1500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1992GMCG2500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1992GMCG3500FrontCompatible with vehicles equipped with air conditioning.; Heater Core
1991ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1991ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1991ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1991GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1991GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1991GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1990ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1990ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1990ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1990GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1990GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1990GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1989ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1989ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1989ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1989GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1989GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1989GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1988ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1988ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1988ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1988GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1988GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1988GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1987ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1987ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1987ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1987GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1987GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1987GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1986ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1986ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1986ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1986GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1986GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1986GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1985ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1985ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1985ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1985GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1985GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1985GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1984ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1984ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1984ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1984GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1984GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1984GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1983ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1983ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1983ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1983GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1983GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1983GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1982ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1982ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1982ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1982GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1982GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1982GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1981ChevroletG10FrontCompatible with models that do not have air conditioning.; Heater Core
1981ChevroletG20FrontCompatible with models that do not have air conditioning.; Heater Core
1981ChevroletG30FrontCompatible with models that do not have air conditioning.; Heater Core
1981GMCG1500FrontCompatible with models that do not have air conditioning.; Heater Core
1981GMCG2500FrontCompatible with models that do not have air conditioning.; Heater Core
1981GMCG3500FrontCompatible with models that do not have air conditioning.; Heater Core
1980ChevroletG10N/ACompatible with models that do not have air conditioning.; Heater Core
1980ChevroletG20N/ACompatible with models that do not have air conditioning.; Heater Core
1980ChevroletG30N/ACompatible with models that do not have air conditioning.; Heater Core
1980GMCG1500N/ACompatible with models that do not have air conditioning.; Heater Core
1980GMCG2500N/ACompatible with models that do not have air conditioning.; Heater Core
1980GMCG3500N/ACompatible with models that do not have air conditioning.; Heater Core
1979ChevroletG10N/ACompatible with models that do not have air conditioning.; Heater Core
1979ChevroletG20N/ACompatible with models that do not have air conditioning.; Heater Core
1979ChevroletG306.6LV8N/ACompatible with models that do not have air conditioning.; Heater Core
1979ChevroletG305.7LV8N/ACompatible with models that do not have air conditioning.; Heater Core
1979ChevroletG305.0LV8N/ACompatible with models that do not have air conditioning.; Heater Core
1979ChevroletG304.1LL6N/ACompatible with models that do not have air conditioning.; Heater Core
1979GMCG1500N/ACompatible with models that do not have air conditioning.; Heater Core
1979GMCG2500N/ACompatible with models that do not have air conditioning.; Heater Core
1979GMCG3500N/ACompatible with models that do not have air conditioning.; Heater Core
1978ChevroletG10N/ACompatible with models that do not have air conditioning.; Heater Core
1978ChevroletG20N/ACompatible with models that do not have air conditioning.; Heater Core
1978ChevroletG30N/ACompatible with models that do not have air conditioning.; Heater Core
1978GMCG15N/ACompatible with models that do not have air conditioning.; Heater Core
1978GMCG25N/ACompatible with models that do not have air conditioning.; Heater Core
1978GMCG35N/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:

10021415600241563316171000918121191913197623332501862624027914230375153990954603134524798685546176603134687370233370915082313049010133909590950946179607798617E812041GM9095H2366HT399095HT399095CZH186

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

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