doublecheck the spec number but I am coming up with a 12 853 132-S superceding to 12 853 160 futher ceding to 12 853 179-S for the CV461-26504. Kohler dealer shows the 12 853 68 supercede to 12 853 131 which further cedes to 12 853 178-S used on the CV15 but not a CV461