Melling Chain Tensioner - BT418 Part #: BT418 Line: MEL Melling Chain Tensioner 1 Year Limited Warranty Height (in): 0.952 Inch Height (mm): 24.17mm Length (in): 4.113 Inch Length (mm): 104.47mm Width (in): 0.900 Inch Width (mm): 22.86mm Adjustable: Yes Bracket Included: Yes Bolts Included: No Mounting Hole Diameter (in): 0.382 Inch Housing Material: Nylon Instructions Included: No Spring Included: No Number Of Mounting Holes: 3 Gasket Or Seal Included: No Number Of Rows: 1 Shoe Included: Yes Mounting Hole Diameter (mm): 9.7mm Activation Style: Manual Tensioner Actuation Type: Mechanical Show More Show Less