64.06303-5003 MAN COOLANT PIPE

This coolant pipe, manufactured by MAN (MPN 64063035003), is a vital component of an engine’s cooling system. It is designed to circulate coolant between the engine block and the radiator, effectively dissipating heat and maintaining optimal engine temperature. This pipe is specifically engineered for efficient fluid transfer and is made to withstand the high temperatures and pressures of a modern cooling system. Measuring 200 x 200 x 1090 mm, this pipe is manufactured in Germany, ensuring high quality and durability. Coolant hoses are pretty straightforward – they're the pathways for the coolant, that green or orange fluid, to circulate between the engine and the radiator. They carry the hot coolant from the engine to the radiator where it’s cooled down, and then carry the cooled coolant back to the engine to absorb more heat. It's a continuous loop, keeping everything at a safe operating temperature. They’re flexible rubber, designed to handle both high temperatures and pressure. Think of it like the circulatory system for your engine. The coolant picks up heat from the engine block—where things get very hot during combustion—and the hoses are the veins and arteries that move it all around. There's usually an upper and a lower hose, and sometimes others for heater core connections or turbocharger cooling. They connect to the engine, the radiator, and sometimes other components. They’re secured with clamps to make sure there aren’t any leaks. Well, if those hoses fail, you’ll have coolant leaking out. That quickly leads to overheating, and overheating can cause serious engine damage. Things like a warped cylinder head, blown head gasket, even a cracked engine block aren't uncommon when an engine gets too hot. A failing hose doesn’t always leak immediately though. Sometimes it will bulge or soften over time. You’ll notice if one starts to swell, crack, or feel mushy when you squeeze it. Regular inspection is a good idea. Replacing them before they go bad is way cheaper than fixing an overheated engine. We carry a good range of them at Fixparts Online, and honestly, it’s one of those things that’s best to keep on hand if you do your own work, just because of how quickly a failing hose can cause trouble. More than just a part: Coolant Hose (MPN 64063035003) includes a 12-month warranty!

About MAN

MAN Truck & Bus focuses on innovation, efficiency, and reliability in commercial transport solutions.

Why Choose MAN?

• MAN auto parts are built to last, using high-quality materials so you don’t have to replace them often. • We have a huge selection of parts for many different vehicles, making it easy to find what you need. • Our parts are designed to meet or beat the original equipment standards, ensuring a perfect fit and reliable performance. • We offer competitive prices and fast shipping, so you can get your vehicle back on the road quickly and affordably. Drive with confidence – choose MAN parts at FixParts Online.