51.12501-7397 MAN fuel prefilter

This little filter sits before your main fuel filter, and basically it’s a first line of defense. It catches the bigger stuff—water, dirt, rust particles—anything that could potentially mess up your fuel system. It’s designed to grab the really coarse contaminants. Think of it like a first sieve before getting to the finer filter. It’s positioned early in the fuel line, usually right after the fuel tank or before the fuel pump. Its job is to protect those more sensitive, and expensive, components downstream. It takes a lot of the initial hit, extending the life of your main fuel filter and potentially saving you from problems with fuel injectors or the pump itself. It's crucial, especially if you’re driving an older vehicle or one that's seen a lot of use. Over time, tanks can develop rust, and fuel quality isn’t always great. This prefilter stops that gunk from getting into the main system where it can cause serious issues. You’ll notice if it’s clogged—likely a loss of power, rough idling, or even stalling. Ignoring it can lead to much bigger, pricier repairs down the road. We carry a good range of these at Fixparts Online, and it’s a relatively simple DIY job for many vehicles, though a mechanic can always handle it for you if you'd prefer. It’s one of those inexpensive parts that can prevent a lot of headaches. We stand behind our products: Fuel Prefilter (MPN 51125017397) has a 12-month warranty!

About MAN

MAN Truck & Bus is a leading provider of commercial vehicles, specializing in trucks, buses, and industrial engines.

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. MAN delivers excellence, FixParts Online delivers to your door.