42N-04-31850 Komatsu 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. Next-gen performance: Fuel Prefilter (MPN 42N-04-31850) is backed by a 12-month warranty!

About Komatsu

Komatsu provides innovative and reliable machinery solutions designed to withstand the harshest conditions in construction and mining.

Why Choose Komatsu?

• Komatsu parts are built to last, meaning less downtime and more work getting done. • Our parts are designed specifically for Komatsu equipment, ensuring a perfect fit and optimal performance. • We have a huge inventory of parts, so you can get what you need quickly. • Genuine Komatsu parts help maintain your machine’s value and protect your investment. Komatsu delivers excellence, FixParts Online delivers to your door.