8701.10/6062.55 is the standard repair kit for the 6010.24 or 6010.24/LP control unit found on the Kappa-30/40 and Kappa-55 diaphragm pumps. If your looking for the repair kit that has the steel poppet in place of the red urethane you want 8701.02 kit.
The rebuild kit includes replacement diaphragm (0903.26), urethane poppet assembly (8701.04), replacement seat (1501.23) and replacement o-rings (1101.04, 1101.06, 1101.41).