One Stop Solutions 99129 HVAC Heater Core

Heater Core Overview

This OSC Premium New heater core is built as an OE-style replacement for the cabin heating system. It is made from aluminum and engineered to match original equipment form and function for a direct service replacement.

Fits 2010-2017 Buick Regal, N/A; Fits 2010-2016 Buick LaCrosse, N/A; Fits 2012-2017 Buick Verano, N/A; Fits 2010 Buick Allure, N/A; Fits 2014-2016 Cadillac ELR, N/A; Fits 2010-2016 Cadillac SRX, N/A; Fits 2011-2016 Chevrolet Cruze, N/A; Fits 2016 Chevrolet Cruze Limited, N/A; Fits 2013-2016 Chevrolet Malibu, N/A; Fits 2016 Chevrolet Malibu Limited, N/A; Fits 2011-2015 Chevrolet Volt, N/A; Fits 2012 Chevrolet Orlando, N/A; Fits 2011 Saab 9-4X, N/A; Fits 2010-2011 Saab 9-5, N/A.

Key Features

• Aluminum construction for a direct replacement heater core.
• Cadmium-plated tubes inside and out to resist premature failure.
• Individually pressure tested for leak verification before use.
• Foam and related accessories are included with the unit.
• OE-style form and function for HVAC service work.

Detailed Description

OSC 99129 is a premium new HVAC heater core designed to replace the original unit in a wide range of Buick, Cadillac, Chevrolet, and Saab applications. The aluminum core uses cadmium-plated tubes for added corrosion resistance, while the OE-matched design supports proper fit and heat transfer in the vehicle heating system. This part number, 99129, is a practical choice for restoring cabin heat in vehicles such as the Chevrolet Cruze, Buick Regal, and Cadillac SRX.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Can Address

• Weak or inconsistent cabin heat output.
• Coolant odor inside the passenger compartment.
• Heater core leakage from internal corrosion or wear.
• Restricted heat transfer caused by a failing core.
• HVAC performance loss related to a damaged heater core.

Installation Notes and Quality

Install as a direct replacement heater core following the vehicle service procedure for HVAC disassembly and reassembly. Verify the cooling system is properly drained, refilled, and bled after installation, and inspect for leaks before returning the vehicle to service.

OSC Premium New Automotive Heater Cores are individually pressure tested before release. Part number 99129 is built to OE form and function, and the aluminum construction is intended as a direct replacement for copper-designed heater cores.