For Sale on ebay; here's the link: US MADE MOPAR Plymouth Dodge NEW 4-Prong Ballast Resistor PN 3874767 1971-Newer | eBay Mopar Part Number 3874767 - US Made NOS/NORS (New Old Stock/New Old Replacement Stock) Four-Post Ballast Resistor for all Mopars (Dodge, Plymouth, Chrysler), for late 1971 and newer production cars, trucks, and vans with Electronic Ignition. Excellent for your restoration and/or to have as the spare(s) in your glovebox. Also have available the 4 terminal ballast resistor with no number stamped in it (blank ballast resistor). Again, this is a NOS (New Old Stock) Ballast Resistor, produced by a Chrysler Corporation supplier to Chrysler specifications. Note the second photo showing the back of the ballast resistor - the ballast resistors are sealed, not open! This means that the resistors are not "open" facing the firewall of your car! A superbly manufactured part! This is a NEW (NOS - New Old Stock), as well as replacement (NORS - New Old Replacement Stock) ballast resistor, MADE IN THE USA!!!! Cross reference PartNumbers Include: Part Number # RU12, RU12T, RUE1, WELLS# 6R1008, CR1105, Other Part Numbers 8A4, CR105, 50-5501, FR57, 73071, ICR24, 5212 OE# 12336833, 23005, 3656199, 3874767 Larger quantities available for discounted price - please PM for details. $7.50 each, with free shipping from Northport, New York. If you want to purchase more than two, PM me.