4.6L V8 Underdrive Crank Harmonic Balancer

The Steeda Mustang Underdrive Crank Harmonic Balancer is engineered to optimize performance for 1996-2010 4.6L V8 Mustangs. As a leader in underdrive pulley design for these engines, Steeda was the first to achieve SFI approval. This pulley is constructed from a single piece of nodular iron with an injection-molded rubber design, ensuring proper torsional vibration dampening characteristics specifically tuned to the 4.6L engine's frequency, unlike "piggyback" designs. By slowing accessory speed by approximately 25%, this harmonic balancer significantly reduces parasitic accessory drag. This directly translates to increased rear-wheel horsepower, with gains of up to 10 HP reported, and also contributes to improved gas mileage. The special rubber materials used are selected for their ability to absorb engine vibrations and withstand high underhood temperatures, leading to a smoother running engine. Fitment is specifically for 1996-2010 4.6L V8 Mustangs. The product is manufactured in the USA. As with many automotive components, California residents should be aware of the "Cancer and Reproductive Harm" warning from www.p65warnings.ca.gov.