3847644 Fuel Filter Water Separator Fits Volvo Penta 3862228 Sierra 18-7789

Keeping the fuel supply in good shape is part of routine care for any Volvo Penta marine engine, and the fuel filter water separator is the part that handles that job on the fuel line. Over a season of boating, moisture can collect in the fuel system, especially when the boat is fueled with ethanol-blended marina fuel. This replacement filter is designed to separate water from the fuel flow, helping the engine receive a steady, clean supply of fuel every time you leave the dock. This filter is a direct replacement for the original Volvo Penta 3847644 part, the current fuel filter used on the popular 5.7L GI, GXi, OSi, and OSXi sterndrives. It crosses over to a range of common numbers used across the marine aftermarket, including Volvo Penta 3862228, 3852413, and 3851218, Sierra 18-7789, and OMC 5009676, 502906, and 5011090, and is intended for Volvo Penta sterndrive and inboard gasoline engines in popular sizes from 3.0L up to 8.2L, 1993 and later. The spin-on design uses the standard 3/8-16 thread and mounts to the fuel pump assembly the same way the original filter does, which keeps the changeover straightforward. When it is time to service the fuel system, remove the old filter, wipe the mounting surface clean, and spin the new filter on by hand. There are no special tools or extra parts to track down, which makes it a practical choice for both the DIY boat owner and the marine mechanic. Replacing a fuel filter water separator is one of those small jobs that helps a boat stay dependable. Fuel filters are a normal part of fuel system maintenance, and staying on schedule with them is a simple way to keep the fuel supply in good condition through a full season on the water. Because this filter is built to match the original fit, you can install it with confidence and get back to the water without second-guessing the part. Before ordering, check the part number stamped on your current filter and compare it with the cross-reference list above. If the numbers match, this filter is designed for the same application. Many boat owners like to keep a spare fuel filter on board, so the next service is as quick as a stop at the dock.