Melling Chain Tensioner - BT157 Part #: BT157 Line: MEL Melling Chain Tensioner 1 Year Limited Warranty Height (in): 2 Inch Height (mm): 51mm Length (in): 3.903 Inch Length (mm): 99.14mm Width (in): 0.845 Inch Width (mm): 21.46mm Adjustable: Yes Bracket Included: Yes Bolts Included: No Mounting Hole Diameter (in): 0.270 Inch Housing Material: Nylon Instructions Included: No Spring Included: No Number Of Mounting Holes: 2 Gasket Or Seal Included: No Number Of Rows: 1 Shoe Included: Yes Mounting Hole Diameter (mm): 6.9mm Tensioner Actuation Type: Hydraulic Show More Show Less