Description: Part number: 917-250 3R2Z6A257DA 3L3Z6M280EA 8L3Z6M280AMaterial: Timing Chain Kit is made of metal, strong, wear-resistant, can be used for a long time, not easy to damageFunction: Timing Chain Kit can help you better progress the work of car maintenance and improve work efficiencyEasy to use: Timing Chain Kit has complete accessories, easy to use, no complicated steps, to meet your needsApplicable: Timing Chain Kit is suitable for specified models, please confirm whether the part number and model are suitable before purchase,For FORD EXPEDITION 5.4L 05-08,F-150 5.4L 04-08,F-250 05-08,F-350 05-08 Specification: Material: Metal Size Chart: Packing size 41cmx32cmx18.5cm/16.14inchx12.60inchx7.28inch Package Includes: 2 Timing Chains (122 Links)2 Camshaft Phasers (Left And Right)2 Phaser Sprocket Bolts1 Tensioner (Upper Left)1 Tensioner (Upper Right)1 Guide (Tensioner Guide - Left)1 Guide (Tensioner Guiding Right)1 Guide (Fixed Guide Left)1 Guide (Fixed Guide)1 Crank Gear (Double Row, Recessed on Single Side Only)2 Camshaft Gaskets2 Vct Variable Camshaft Timing Solenoid Oil Control Valves (Left And Right)2 Mounting Bolts2 Oil Control Valve Seals (With A Hole In The Middle)1 Oil Pump (24mm Inlet)1 Timing Cover Seal2 Rtv Silicone1 Valve Cover Gasket