One Stop Solutions 98490 HVAC Heater Core - Front

OE-Style Heater Core Replacement

The One Stop Solutions 98490 HVAC heater core is built as a direct replacement for the original equipment design, with drop-in fit, form, and function. It is made for front heater core applications in Chevrolet Astro and GMC Safari models, helping restore cabin heat performance in high-mileage vehicles.

Built from premium-grade aluminum and individually pressure tested, this heater core is engineered for dependable heat transfer and consistent sealing. The 98490 also includes the foam and accessories needed for the unit, making it a practical replacement for worn or leaking factory heater cores.

Key Features

• Drop-in fit, form, and function for OE-style replacement
• Premium-grade aluminum construction for added durability
• Cadmium-plated tubes inside and out to help resist premature failure
• Individually pressure tested before release
• Includes necessary foam and accessories
• Direct replacement for copper-designed heater core applications

Detailed Description

One Stop Solutions part number 98490 is an HVAC heater core designed for front installation in 1985-1995 Chevrolet Astro and 1985-1994 GMC Safari models. It is engineered to match the original equipment form and function while using aluminum construction in place of the original copper-style design. This approach supports long-term service in vehicles that have accumulated higher mileage and need a reliable heater core replacement. This part cross-references Spectra Premium 94490 for the same application.

Common Issues This Part May Solve

• Loss of cabin heat from a leaking or restricted heater core
• Coolant odor inside the vehicle from heater core seepage
• Fogging or film on the windshield caused by HVAC coolant leakage
• Reduced heater output in Chevrolet Astro and GMC Safari front HVAC systems
• Failure related to age, vibration, or thermal cycling in high-mileage vehicles

Installation Notes and Tips

Verify the vehicle year, make, model, and front heater core position before installation. Inspect the HVAC case, coolant hoses, and seals during replacement, and flush the cooling system if contamination or debris is present. Confirm all connections are clean and properly seated to help prevent leaks after installation.

Quality Assurance

The 98490 heater core is individually pressure tested and manufactured using cycle, vibration, burst, and environmental testing methods to help verify durability and fit. One Stop Solutions designs this heater core to meet OE-style requirements for the Chevrolet Astro and GMC Safari front HVAC applications.