Remark: Camshaft Gears / Sprockets are not included. The upper right secondary guide rail only fits F150 VIN "8". If you have F-150 VIN "G" the secondary right guide rail will not fit, we have the kit for F-150 VIN "G" listed on a separated listing in our store. This item includes:1 Timing chain (primary, lower, 254 link)2 Timing chain upper (secondary cam to cam, 50 link, 2 required)1 Tensioner primary (lower tensioner)2 Tensioner upper (piston & shoe assembly, 2 required, left and right)1 Guide rail (tesnioner arm) - only fits F-150 VIN "8"1 Guide rail (fixed)1 Guide rail upper (secondary, left)1 Guide rail upper (secondary, right) - only fits F-150 VIN "8"1 Cam sprocket (intake VVT cam actuator) - not included1 Cam sprocket (exhaust VVT cam actuator) - not included1 Crank sprocket (29 teeth)Compatible With / Replacement For Following Models:2014 F-150 3.7L 3726CC 227CID V6 CNG DOHC, (24 VALVE)2013-2014 F-150 3.7L 3726CC 227CID V6 DOHC, (24 VALVE)2013-2014 F-150 3.7L 3726CC 227CID V6 FLEX DOHC, (24 VALVE)2014 F-150 3.7L 3726CC 227CID V6 LPG DOHC, (24 VALVE)2013-2017 LINCOLN MKT 3.7L 3726CC 227CID V6 DOHC, (24 VALVE)