This thing is basically a small radiator, but instead of cooling engine coolant, it heats the air that comes into your cabin. Hot coolant from your engine circulates through it, and a fan blows air across the fins, giving you warm air for heat. It's a heat exchanger, taking the warmth from the engine and putting it where you need it. It’s a key part of your vehicle’s HVAC system—that’s heating, ventilation, and air conditioning. The heater core specifically handles the “heating” part. Coolant flows from the engine, through the heater core, and then back to the engine. The air from your blower motor passes over the core, and that’s what warms up your car when it's cold outside. Well, if it fails, you’ll quickly realize how important it is. You’ll notice if you suddenly have no heat, or only cool air blowing, even when the engine is warmed up. Sometimes, a failing heater core can leak coolant into the passenger compartment, which you’ll smell – it has a sweet, almost sickly smell. That’s a serious issue, and you'll definitely know it. It’s not just comfort, though. No heat in winter can cause defogging problems, impacting visibility. It acts like a shield against condensation on your windshield. A replacement heater core isn’t super fun to install—it often means taking a good chunk of the dashboard apart—but it's something you want to get fixed sooner rather than later. We carry a good selection here, and you can also find them online at Fixparts Online if you’re looking for options. Customer-approved reliability: Heater Core (MPN 3181328) includes a 12-month warranty!

About Volvo Trucks

Volvo Trucks is a global leader in commercial vehicles, known for its fuel-efficient, safe, and durable trucks.

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• Get parts built specifically for your Volvo truck – they’re designed to fit and work together perfectly for top performance. • Extend the life of your truck and keep it running smoothly with high-quality, durable parts. • Reduce downtime and get back on the road faster with reliable parts and a wide network of support. • Protect your investment with genuine Volvo parts, ensuring your truck holds its value longer. Volvo Trucks delivers excellence, FixParts Online delivers to your door.