The Fleetguard LF509N is a high-efficiency spin-on lube filter designed for heavy-duty applications, primarily featuring Cummins engines. This genuine Fleetguard filter ensures optimal engine performance and longevity by effectively removing contaminants. It has an overall height of 175.3 mm, a largest outer diameter of 93.7 mm, and a 1-16 UN-2B thread size. Equipped with an anti-drainback valve and a bypass valve set at 172.4 kPa (25 PSI), it maintains consistent oil flow and prevents dry starts. The filter provides 98.7% efficiency at 20 microns, making it a reliable choice for maintaining clean engine oil.