Compare Maximum number of 4 items selected Melling Chain Tensioner - BT5138 Part #: BT5138 Line: MEL Melling Chain Tensioner 1 Year Limited Warranty Housing Material: Cast Iron Height (in): 0.876 Inch Height (mm): 22.26mm Length (in): 2 Inch Length (mm): 50.8mm Mounting Hole Diameter (in): 0.250 Inch Mounting Hole Diameter (mm): 6.35mm Width (in): 2 Inch Width (mm): 50.8mm Adjustable: Yes Bracket Included: Yes Bolts Included: No 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 Tensioner Actuation Type: Hydraulic Show More Show Less