One Stop Solutions 98496 HVAC Heater Core

OE-Style Heater Core Replacement

The One Stop Solutions 98496 HVAC heater core is built as a direct replacement for original equipment designs, with form and function matched for a drop-in fit. It is made from premium-grade aluminum and individually pressure tested for consistent performance in heating system repair on high-mileage vehicles.

Fits 1982-1998 Buick Skylark, Oldsmobile Achieva, Pontiac Grand Am, Chevrolet Corsica, Chevrolet Cavalier, Pontiac Sunbird, Oldsmobile Cutlass Calais, Buick Skyhawk, Cadillac Cimarron, Oldsmobile Firenza, Oldsmobile Calais, and Pontiac J2000 Sunbird applications, including select air conditioning-equipped vehicles.

Key Features

• Drop-in fit, form, and function for OE-style heater core replacement
• Premium aluminum construction for added service life
• Cadmium-plated tubes inside and out to help resist premature failure
• Cycle, vibration, burst, and environmental testing for durability validation
• Includes necessary foam and accessories for the unit
• Built to address common failure points in higher-mileage HVAC systems

Detailed Product Overview

OSC Premium heater cores are engineered to replace copper-designed originals with an aluminum unit that follows the same installation and operating requirements. Part number 98496 is a practical choice for restoring cabin heat in vehicles such as the Buick Skylark, Pontiac Grand Am, and Chevrolet Cavalier, while maintaining OE-style fitment across the listed applications. This part cross-references Spectra Premium 94496 and 398310 for the same application.

Common Issues This Part Can Address

• Weak or no 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 performance in older Buick, Pontiac, Chevrolet, Cadillac, and Oldsmobile models
• Premature failure associated with aging copper-style heater core designs

Installation Notes and Tips

Verify vehicle year, make, model, and HVAC configuration before installation. This heater core is a direct replacement for copper-designed units, and select fitments are noted for vehicles with air conditioning systems. Inspect hoses, seals, and surrounding HVAC components during service to help prevent repeat repairs.

Quality Assurance

Each heater core is individually pressure tested before release. OSC uses premium-grade aluminum construction and durability testing methods that include cycle, vibration, burst, and environmental evaluation to support consistent replacement quality.