Great Compatibility — Works on all Cummins Engines 2007~2017. Directly replace OEM Cam Timing Tools 3163021, Cam Gear Puller 3163069 Crank Pin 3163020 and 3163530 Jake Brake Tool (7MM) feeler gauge..Includes 7 Tools — One- Cam Gear Puller (3163069) / One- Crank Pin (3163020) / One- 4°Wedge / Two- 6°Wedges and One- 7°Wedge / One- Jake Brake Tool (7MM) feeler gauge..Upgrade Design — Used for setting the gear train timing on Cummins engines with single or double camshaft. Insert the brake tool between the slave pistons contact surface with the exhaust valve adjusting screw to adjust screws on each cylinder..Superior Quality — Advanced heavy duty solid steel and black non-slip PVC coated handle, durability and anti-corrosion. High precision and hardness to provide a much longer service life..100% Satisfaction Guarantee — If you're not 100% satisfied with our tools, simply return it for a full refund in 30 days. Support 12 months’ Warranty. Professional & Sincere Service allows you to take no risks to purchase in E-cowlboy!