The Donaldson P502423 is a high-performance Spin-On Fuel Filter designed to protect diesel engines from contaminants. With an outer diameter of 93mm and a length of 143mm, it features an M20x1.5 thread for secure installation. This filter provides efficient filtration with beta ratings of 10 micron at Beta 2, 20 micron at Beta 20, and 25 micron at Beta 75. It is a direct replacement for Cummins 3903202 and cross-references with Fleetguard FF5052, Baldwin BF7587, and Wix 33109, ensuring reliable fuel system cleanliness and engine longevity.