Melling Chain Tensioner - BT404 Part #: BT404 Line: MEL Melling Chain Tensioner 1 Year Limited Warranty Height (in): 1.241 Inch Height (mm): 31.51mm Length (in): 2.236 Inch Length (mm): 56.81mm Width (in): 1.248 Inch Width (mm): 31.7mm Adjustable: Yes Bracket Included: Yes Bolts Included: No Mounting Hole Diameter (in): 0.259 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: Yes Mounting Hole Diameter (mm): 6.57mm Tensioner Actuation Type: Hydraulic Show More Show Less