Auto enthusiasts know that a brand you can trust is built into each GMC, and know that only top quality repair Sierra 1500 HD parts will suffice when repairs are needed. Make no mistake, you didn't buy your Sierra 1500 HD unless you understood you would be getting performance and great value both impeccably combined into one car, truck, or SUV. It's not a regular occurrence that you realize that you have to buy a replacement Heater Core for your car or truck. Your GMC dealership isn't the only place to buy trusted parts to repair your Sierra 1500 HD.
Before cars and trucks were built with the ability to cool their interiors, they had the ability to heat them. The engine of your GMC Sierra 1500 HD constantly pumps and turns a mixture of water and ethylene glycol through the engine block in order to absorb the heat it generates, and sends this liquid to the heater core (a small radiator) through a heater supply hose when you want to warm your vehicle's cabin. This heater core is almost always installed on the passenger side of the firewall, and you can find a couple of hoses leading to it. Basically, your GMC Sierra 1500 HD heater core is a small radiator that creates a pocket of heat for your blower motor to funnel air past as it goes through to the interior.
When your GMC requires the best replacement Heater Core, there's no need to go somewhere besides the authority, Car Parts Discount. At Car Parts Discount, we have live customer service members on the phone with enough expertise to help you select the correct GMC Sierra 1500 HD part for your project or repair. Get your Sierra 1500 HD back on the road with the best replacement parts from the experts at Car Parts Discount. Just choose your year from the list below to find the right GMC Sierra 1500 HD Heater Core for your 2006, 2005, 2003, 2002, 2001 model.