The role of the connecting rod: 1. Connect the piston (or crosshead) and the crankshaft to form a crank connecting rod mechanism. 2. Convert the reciprocating motion of the piston into the rotary motion of the crankshaft. 3. Transmit the gas force and inertial force acting on the piston to the crankshaft. QSB6.7 con-rod is for Cummins QSB Series 6 Cylinder mechanical engines. If you have to replace the con-rod, then you may need to replace the parts below:
Connecting Rod Bearing Set
Pistons
Piston Rings
Upper Gasket kit
Lower Gasket Kit
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