Electric fuel pumps, air-conditioning, power windows and car stereos are too much for OEM 63 amp alternators. The increased power demands of today's hot rods call for a upgrade. Thanks to PROFORM's Ford Modified 10SI and GM CS130 Alternators with Black Crinkle finish, users can keep the power flowing to their batteries in low-rpm situations. Both alternators feature an external fan, 1-wire hook-up, machined pulley and internal regulator. As with all PROFORM 12-Volt Engine Parts, these alternators are produced and assembled by highly experienced personnel. They are sold individually. Features include: Black Crinkle finish Charging at low rpm Machined V-Belt pulley 1-wire hook-up with internal regulator 100% new internal and external components Sold individually For more information, call 586-774-2500 or visit www.proformparts.com (Content courtesy of PROFORM)