Aluminum pump has G-26 N 3 on inside. 6" tall from gasket surface to flange surface. Tallest of the Olds water pumps. I thought it was new but found evidence of gasket on surface. $45 shipped.

Cast iron pumps are both 398681 5.1" tall. 1968/69 applications according to 442 by the numbers. Pump at top right will turn the other will only turn 1/4 turn. $45 each shipped.

All pumps are sold as cores, but I think the aluminum unit should be good as it looks new.

Don W