CAN USE 990-357 - OE SANDEN; ORDER 451-6265K TO REPLACE ORIGINAL SERVICE VALVES, UNIVERSAL KIT - USE FOR FLARE & O-RING APPLICATIONS. MODELS: HYDRO 100, 766, 815, 966, 1066, 1466, 1566, 4166, 4186 MUST ORDER 9-AP37 BELT.