For Cummins engine owners, this Fleetguard WF2071 water filter 3-pack is exactly what you need for proper cooling system maintenance! These spin-on filters measure 105.66mm in overall height with a largest OD of 93.22mm and feature 11/16-16 UN-2B thread size for perfect fitment. The gasket dimensions are precise at 71.88mm OD and 62.48mm ID to ensure leak-free operation. What sets these apart is the DCA4+ chemical additive that provides extra protection for your cooling system. They replace multiple OEM part numbers including Ag-Chem 709939, Case 1822627C1, Caterpillar 226-6565, Cummins 3315116, and work with Ford, General Motors, John Deere, Mack, and several other applications. Primary use is for Cummins 3100304 systems, making them essential maintenance for trucks, heavy equipment, and industrial applications. The spin-on design makes replacement quick and mess-free compared to cartridge-style filters. Buying the 3-pack means you've got spares on hand for future maintenance intervals or multiple vehicles. Fleetguard is known for quality filtration products that meet or exceed OEM specifications, so you can trust these to protect your engine's cooling system properly. Whether you're a professional mechanic or a DIY truck owner, having the right water filters on hand prevents overheating issues and maintains optimal engine performance. Your Cummins engine will thank you for using quality filters that actually do their job right!