A connecting rod is a crucial component in an internal combustion engine. It connects the piston to the crankshaft, converting the linear motion of the piston into the rotational motion needed to turn the crankshaft. This process is essential for the engine to generate power and drive the vehicle. Typically made from materials like steel or aluminum, connecting rods must be strong yet lightweight to withstand high forces and temperatures. They play a vital role in the overall efficiency and performance of the engine, impacting how well the vehicle operates and responds to acceleration.