Melling Chain Tensioner - BT5489 Part #: BT5489 Line: MEL Melling Chain Tensioner 1 Year Limited Warranty Height (in): 1.130 Inch Height (mm): 28.71mm Length (in): 5.050 Inch Length (mm): 128.27mm Width (in): 0.932 Inch Width (mm): 23.68mm Adjustable: Yes Bracket Included: Yes Bolts Included: No Mounting Hole Diameter (in): 0.315 Inch Housing Material: Steel Instructions Included: No Spring Included: No Number Of Mounting Holes: 3 Gasket Or Seal Included: No Number Of Rows: 1 Shoe Included: Yes Mounting Hole Diameter (mm): 8mm Activation Style: Manual Tensioner Actuation Type: Mechanical Show More Show Less