Melling Chain Tensioner - BT7018 Part #: BT7018 Line: MEL Melling Chain Tensioner 1 Year Limited Warranty Height (in): 0.785 Inch Height (mm): 19.95mm Length (in): 1.816 Inch Length (mm): 46.13mm Width (in): 1.653 Inch Width (mm): 41.99mm Adjustable: Yes Bracket Included: Yes Bolts Included: No Mounting Hole Diameter (in): 0.250 Inch Housing Material: Cast Iron Instructions Included: No Spring Included: Yes Piston Material: Steel Number Of Mounting Holes: 2 Gasket Or Seal Included: No Number Of Rows: 1 Shoe Included: No Mounting Hole Diameter (mm): 6.35mm Tensioner Actuation Type: Hydraulic Show More Show Less