A John Deere engine service kit suitable for X300 & X304 models with the Kawasaki engine. John Deere X300 (Engine FH491V)- John Deere X304 (Engine FH491V)- John Deere X300R (Serial No. 000001-150, 000) Air Filter: 11013-70172 x Spark Plugs: BPMR6 A Fuel Filter: AM116304 Oil Filter: AM107423