KUBOTA lawn tractor voltage regulator for models: KUBOTA F 1900 , G 1700 , G 1800 , G 1900 , GF 1800 , GZD 15 , GZD 21 , KC 100 , KC 121 , T 1600 Part No.: 18270169 Original part No.: RP20153710 , RP201-5371-0 KUBOTA SR m