Melling Chain Tensioner - BT5574 Part #: BT5574 Line: MEL Melling Chain Tensioner 1 Year Limited Warranty Height (in): 0.827 Inch Height (mm): 21mm Length (in): 2.500 Inch Length (mm): 63.5mm Width (in): 1.200 Inch Width (mm): 30.48mm 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