One Stop Solutions 99163 HVAC Heater Core

HVAC Heater Core for Colorado, Canyon and SSR

One Stop Solutions 99163 is an HVAC heater core built for direct replacement in select Chevrolet, GMC, and Isuzu applications. It is made from aluminum and follows original equipment form and function for the listed vehicles.

Key Features

• Aluminum heater core construction
• OE-style form and function replacement
• Cadmium-plated tubes inside and out to help resist premature failure
• Individually pressure tested before release
• Foam and related accessories included with the unit
• Direct replacement for copper-designed heater cores

Detailed Description

This One Stop Solutions heater core, part number 99163, is designed for HVAC repair on 2003-2007 Chevrolet SSR, 2004-2007 Chevrolet Colorado, 2004-2007 GMC Canyon, and select 2006-2007 Isuzu trucks. It uses aluminum construction in place of the original copper-style design and is built to match OE fit and function for the listed applications. This part cross-references Dorman - HELP 99354 for the same application.

What It Helps Fix

• Weak or no cabin heat
• Coolant odor inside the vehicle
• Heater core leakage
• Restricted coolant flow through the HVAC system
• Fogging caused by an internal heater core leak

Installation Notes and Tips

Verify vehicle fitment by year and model before installation. Replace the heater core only after the cooling system has been properly drained and inspected for contamination or leaks. Confirm all HVAC seals and foam pieces are positioned correctly during reassembly to maintain proper airflow and heat transfer.

Quality Assurance

Each One Stop Solutions 99163 heater core is pressure tested individually. The aluminum construction and plated tubes are used to improve resistance to early failure in the listed Chevrolet Colorado, GMC Canyon, and Isuzu applications.