The belt tensioner fits the Cummins M11 engine. It keeps the drive belts tight. It mounts easily to the front of the engine. This part supports smooth engine performance. It is built for heavy duty use on trucks. Belt Tensioner Cummins M11...

Belt Tensioner Cummins Engine L10/M11/ISM application WEIGHT: 6.55 LBS PKG SIZE: 10 x 5 x 5 inches

Belt Tensioner Cummins 4B / 6B / 6C Engine application WEIGHT: 3.85 LBS PKG SIZE: 7 x 5 x 4 inches

Belt Tensioner Cummins Engine ISB application WEIGHT: 4.07 LBS

Belt Tensioner Cummins Engine ISB/QSB application WEIGHT: 3.00 LBS PKG SIZE: 8 x 5 x 3 inches

Belt Tensioner Cummins Engine ISB application WEIGHT: 4.00 LBS PKG SIZE: 8 x 5 x 3 inches

Belt Tensioner Smooth Pulley Cummins 4B 3.9 / 6B 5.9 / 6C 8.3 Engines application WEIGHT: 3.63 LBS PKG SIZE: 7 x 5 x 4 inches

Belt Tensioner Caterpillar 3126B, C7 Applications WEIGHT: 3.60 LBS PKG SIZE: 7 x 5 x 4 inches

Belt Tensioner Caterpillar 3126B, C7 Applications WEIGHT: 3.66 LBS PKG SIZE: 7 x 5 x 4 inches

Belt Tensioner Cummins ISX Series Cummins QSX Engine Cummins ISB Engines WEIGHT: 3.55 LBS PKG SIZE: 8 x 5 x 3 inches

Belt Tensioner Cummins Engine ISB application WEIGHT: 2.85 LBS

Belt Tensioner Cummins Engine B,C application WEIGHT: 3.54 LBS PKG SIZE: 7 x 5 x 4 inches