ADZ991804 Blue Print Fan Coupling

Basically, it connects the engine’s fan to the water pump pulley, but it doesn’t connect them rigidly. It’s filled with a special silicone fluid, and that fluid’s how it works. As the engine heats up, the fluid thickens. That thickening is what actually drives the fan, and the hotter it gets, the more the fan spins. When the engine is cold, it allows the fan to spin freely, so you don't have a lot of engine drag. It smoothly controls how much air the fan pulls through the radiator. Think of it as the smarts behind your cooling fan. Older cars used a fan that just spun at the same speed as the engine, all the time. This coupling lets the fan speed adjust automatically to what the engine needs. It's part of the cooling system, helping to prevent overheating. It sits right between the fan and the pulley. You’ll notice if it’s failing, because the fan might be noisy, or it might not be pulling enough air when the engine gets warm. It’s really important for keeping your engine at the right temperature. If it goes bad, you can overheat, which can cause some serious damage, like a blown head gasket or even a warped engine. A failing one also puts extra strain on the water pump. It acts like a shield, protecting your engine from damage caused by excessive heat. It’s not something you want to put off fixing. You can usually find a good replacement at places like Fixparts Online, and they’re generally not too difficult to replace if you're comfortable doing a little work yourself. Blue Print quality assured: Viscous Fan Coupling (MPN ADZ991804) includes a 12-month warranty!

About Blue Print

Offering exceptional aftermarket solutions, Blue Print is synonymous with reliability and precision for global automotive needs.

Why Choose Blue Print?

• We offer a huge range of parts for lots of different car makes and models – meaning we likely have what you need. • Blue Print parts are made to the same quality as original parts, so you can be confident they'll fit and last. • We're known for being reliable and having parts in stock, getting you back on the road quickly. • Our parts are priced fairly, giving you great value for money without compromising on quality. Performance you can rely on – Blue Print parts from FixParts Online.