Fitment: For 1985/1987-1990 For Jeep Wrangler 2.1L 2.5L 4.2L For 1985-1986 CJ7 4.2L For 1985-1987 For Cherokee 2.1L For 1986 Comanche 2.1L Description: -Sanden SD508 -Voltage:12V -Material:Iron and Aluminum -Professional Installation is highly recommonded. -Pulley Grooves:8 Grooves -Interchange Part Number:CO 9537C, CO 9285C, J3741284, 4798258, 9285 -Each air conditioner compressor is equipped with oil, does not need additional refueling, directly installed, add about 70-80% refrigerant can be used. -Before installing the air conditioning compressor, clean the vehicle pipe to avoid noise and non-working problems. .