THIS IS THE RIGHT BATTERY FOR KO AND HKO. (CAN WORK FOR THE Z50AK1) IT IS SHIPPED DRY BECAUSE IT IS TOO COSTLY TO SEND ACID SO IF YOU DON'T HAVE A SORCE FOR SOME BATTERY ACID CHECK WITH MOST ANY AUTO PARTS STORE. WE DO NOT SEND ANY ACID!! @ BATTERY SHIPPED DRY CT70KO/HKO SL70K0 1/22W (6N2A2C) (6N2A2C) @ CT70K0 CT70HK0 BATTERY BOX RUBBER SPACER SET REPLACES 50328-098-670 50327-300-000 1/22C (337U) FITS THESE FRAME NUMBERS KO- (AUTO) CT70-100001 TO CT70-999999 (note just 6 digits) HKO (HAND) CT70H-100001 TO CT70H-999999 (note just 6 digits) 337U