Scope of application:Used while servicing valve lifters in 5.9 Liter for Cummins Diesel Engines. 1998 to Current.If you're working on a 2019 or newer Ram 6.7L for Cummins you will also need 2065000090 and 2065100090. Applicable model:2006-2008 (Ram Truck) - Systems (9 - Engine, 5.9L Diesel),2007-2008 (Ram Truck) - Systems ( 9 - Engine, 6.7L Diesel),2009 (Ram Truck 2500/3500) - Systems (9 - Engine, 5.9L Diesel, 9 - Engine, 6.7L Diesel),2010-2012 ( Ram Truck 1500) - Systems (9 - Engine, 6.7L Diesel),2010 (Ram Truck Cab Chassis, Ram Truck 4500, ) - Systems (9 - Engine, 6.7L Diesel),2013 -2014(Ram Truck 3500, Ram Truck Heavy Duty, Ram Truck Cab Chassis, Ram Truck 4500, Ram Truck 2500) - Systems (9 - Engine, 6.7L Diesel),2014-2009 (Ram Truck 4500/5500 Cab Chassis) - Systems (9 - Engine, 6.7L Diesel). Function：This tool is used to remove tappets in the “c” Series(114mm Bore) engine without removing the oil pan. Advantage：The tool can be used anytime there is space available to remove the camshaft because trough has same overall length and diameter of the camshaft and gear. 100% Satisfaction Guarantee-- If you're not 100% satisfied with this tool set, simply return it for a full refund in 30 days. Premium Support & 12-Month Warranty.