Cummins 4B 3.9L Head Bolt Kit

Cummins 4B 3.9L Cylinder Head Bolt Kit
Kit includes the following bolts:4 qty 3920779 bolt - M12 x 1.75 x 70mm (Short Length)10 qty 3920780 bolt - M12 x 1.75 x 120mm (Medium Length)4 qty 3920781 bolt - M12 x 1.75 x 180mm (Long Length)
replaces: 4B-HBK, 040073

Our hardware is made with only the best steel in the industry. The quality of our hardware is tested to reflect the SAE International. We focus in the essential points to guarantee our customers the quality they have come to expect. We focus on providing maximum strength, maximum selection and maximum value.