Search for: Unit Q84-03, Q84-74 4g 130amp. White / Blue voltage regulator. Black metal shield on back. Most pulleys 6 groove approx. 2 1/2 OD. Notice bottom side is flat. EXTENSIONS on through bolts for air cowl. $115.00 Core $70.00 Your Name (required) Telephone number (required) For Unit Q84-03 Your Message