Tav, the pic is on this page{and I've edited accordingly for easier reading}... It's a Radio shack 276-1143 diode... A 3 amp diode {the 4004 is rated for 1 amp}...And it's physically bigger than the original diode but after being wrapped with the cloth tape you cant tell the difference...Could be viewed as overkill but I drive mine and I don't like to see any smoke coming out of the dash....