One Stop Solutions 98480 HVAC Heater Core

OE-Style Heater Core Replacement

The One Stop Solutions 98480 HVAC heater core is built as a direct replacement for OE-style fit, form, and function. It is designed for vehicles such as Cadillac Eldorado, DeVille, Seville, and Buick LeSabre applications where dependable cabin heat and stable HVAC performance matter.

Made from premium-grade aluminum and individually pressure tested, this heater core is engineered for long service life in high-mileage vehicles. The 98480 also includes the necessary foam and accessories for the unit, helping support a proper seal and installation.

Key Features

• Drop-in fit, form, and function for OE-style replacement
• Premium 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
• Built to address original design weaknesses in aging HVAC systems
• Uses cycle, vibration, burst, and environmental testing methods

Detailed Product Overview

One Stop Solutions part number 98480 is an HVAC heater core designed for direct replacement in a wide range of GM luxury and full-size platforms. It serves as an aluminum replacement for copper-designed heater cores and is built to restore heat transfer performance while supporting the demands of older vehicles. This part cross-references Spectra Premium 94480 for the same application.

Compatible With 1986-2002 Cadillac Eldorado, 1991-1999 Buick LeSabre, 1986-1999 Cadillac DeVille, 1992-1999 Oldsmobile 88, 1996-1999 Oldsmobile LSS, 1991-1999 Pontiac Bonneville, 1997-1998 Oldsmobile Regency, 1986-1997 Cadillac Seville, 1991-1996 Buick Park Avenue, 1991-1996 Oldsmobile 98, 1986-1993 Buick Riviera, 1987-1993 Cadillac Allante, 1986-1992 Cadillac Fleetwood, 1986-1992 Oldsmobile Toronado, 1988-1991 Buick Reatta, 1986-1991 Cadillac Commercial Chassis, 1991 Oldsmobile Delta 88, 1986-1990 Buick LeSabre, 1986-1990 Oldsmobile 98, 1986-1990 Oldsmobile Delta 88, and 1987-1990 Pontiac Bonneville.

What This Heater Core Helps Address

• Loss of cabin heat from a leaking or restricted heater core
• Cooling system odor or coolant seepage inside the HVAC case
• Poor heat output in high-mileage Cadillac, Buick, Oldsmobile, and Pontiac vehicles
• Failures related to aging copper-style heater core construction
• Fitment issues caused by worn OE components

Installation Notes

Verify vehicle year, make, model, and HVAC configuration before installation. Some applications list notes such as w/o Automatic Temperature Control or wo/ ELECTRIC CLIMATE CONTROL, so match the existing system exactly. Inspect the HVAC case, seals, and coolant hoses during replacement to help ensure proper operation.

Quality Assurance

Each One Stop Solutions 98480 heater core is individually pressure tested and built using premium materials with cadmium-plated tubes for added resistance to premature failure. The design is validated through cycle, vibration, burst, and environmental testing to support consistent performance in demanding automotive HVAC service.