Rotary 6605 KIT (Includes 6605 Filter and 6606 Pre-Filter) 6605 Replaces John Deere AM-121608, GY20574, M92359; Kohler 12-083-05-S 6606 Replaces John Deere M92360; Kohler 12-083-08-S ID 3-3/8"; OD 4-1/2"; Height 2-13/16" Fits Kohler 11, 12-1/2, & 14 HP Vertical OHV Command Engines on Snapper. Also fits John Deere 11, 12-1/2 & 14 HP Vertical, Model STX 38