3.92101 DT Fuel prefilter

This part essentially does two jobs. First, it filters the fuel before it even gets to your main fuel filter. Think of it like a first line of defense, catching bigger particles and debris that could cause problems down the road. Second, the boost pump gives the fuel an extra push, especially important for modern fuel injection systems. It makes sure the fuel gets to the engine with consistent pressure. It sits between your fuel tank and the main fuel filter, usually. It’s part of the fuel delivery system. The fuel comes from the tank, goes through this prefilter and pump, then on to the main filter, and finally to the engine. It’s designed to help maintain good fuel pressure and keep things running smoothly, particularly on vehicles that demand a lot from their fuel system. It’s important because modern fuel injectors are really sensitive. Even small bits of dirt can clog them up and cause all sorts of performance issues - rough idling, loss of power, poor fuel economy. This prefilter acts like a shield for those injectors. The boost pump helps ensure consistent fuel delivery, which is crucial for engine performance and efficiency. You’ll notice if this part starts to fail – it often shows up as hard starting, stalling, or just generally sluggish performance. A lot of people find parts like this on Fixparts Online, it’s a good resource when you’re looking for specific fuel system components. It's a relatively inexpensive part that can save you a lot of headaches, and potentially more expensive repairs, in the long run. DT quality assured: Fuel Prefilter with Boost Pump (MPN 3.92101) includes a 12-month warranty!

About DT

Diesel Technic specializes in high-quality spare parts for commercial vehicles, offering reliability and durability for fleets worldwide.

Why Choose DT?

• We have a huge selection of parts, so you’re likely to find what you need, fast. • Our prices are competitive, meaning you get great value for your money. • We focus on quality parts that are built to last, saving you time and hassle. • Our customer service team is here to help – we'll get you the right parts and answer your questions. Drive with confidence – choose DT parts at FixParts Online.