This hose basically carries hot engine coolant – that’s the fluid that keeps your engine from overheating – to your heater core. The heater core is like a little radiator inside your dashboard. The coolant warms it up, and then the blower fan pushes air across it, giving you heat inside the cabin. It’s a pretty simple system, but relies on these hoses doing their job. There's usually more than one, often an upper and a lower to create a loop. It’s part of your vehicle’s heating and cooling system, specifically the part that provides warmth to the interior. Think of it as a vital link connecting the engine’s warmth to where you are sitting. It's not directly involved in keeping the engine cool, but it utilizes the engine's heat. Well, if this hose fails, you’ll likely lose heat inside the car. You’ll notice if it’s a really bad leak – coolant will probably be dripping inside the vehicle, or you’ll see it under the hood. More subtly, a pinhole leak can cause a gradual loss of coolant, which can lead to overheating if you’re not careful. It acts like a shield, keeping the hot coolant where it needs to be and preventing it from spilling. They get old, they get brittle, and they crack, especially with temperature changes. Fixparts Online has a good selection of these, and replacing them is a relatively inexpensive way to avoid a bigger problem down the road. Smart investment: Heater Hose (MPN 36779640067) comes with a 12-month warranty!

About MAN

MAN Truck & Bus is a leading German brand specializing in commercial vehicles, including trucks and buses. Originating from Germany, MAN is synonymous with robust engineering and innovative transport solutions.

Why Choose MAN?

• MAN parts are built to last, using top-quality materials so you won’t have to replace them as often. • We have a huge selection of parts for many different vehicles, so you’re likely to find what you need. • Our parts are designed to fit perfectly, making installation easier and ensuring reliable performance. • We offer competitive prices without sacrificing quality, giving you the best value for your money. Drive with confidence – choose MAN parts at FixParts Online.