Hot weather got you down?  This oversize "California Cooling" pulley is larger than stock.  It spins your cooling fan faster than a stock one, delivering more cooling air to your engine.  This helps with the "Freeway Flyer" transmissions that turn less RPM's on the freeway than a stock motor.  It features a hardened steel inner hub that's machined for a sand seal to prevent oil leaks, and to prevent dirt, dust, and water from getting sucked into the case.  The deep laser etched numbers are both handsome and easy to read. Note that the larger diameter pulley requires a slightly larger belt. Requires a sand seal (eiteher machine-in or slip-in), and may require shims between it and the case.  These items are sold separately.