The crank pulley, also known as the vibration damper, is mounted on the front of the crankshaft and transfers rotational power to vital engine accessories such as the alternator, water pump, air conditioning compressor, and power steering pump. It also absorbs torsional vibrations generated by the crankshaft during combustion. A failing crank pulley can cause belt misalignment, excessive vibration, accessory failure, and serious crankshaft damage.
Porza supplies high-quality crank pulleys engineered with precision-balanced construction, reinforced rubber damping elements, and high-strength steel hubs. These pulleys are designed to absorb harmful vibrations while maintaining perfect belt alignment under all operating conditions. With Porza crank pulleys installed, accessory drive systems run smoothly, quietly, and reliably.
Crank pulleys vary by diameter, groove configuration, damping design, and engine compatibility. Correct fitment is essential to prevent belt slip and drivetrain vibration. Replacing a damaged crank pulley with a Porza-quality unit restores smooth rotation, protects accessories, and ensures long-term engine reliability.