Features: 1.Fitment: Voltage regulator rectifier is replacement for John Deere Lawn Mower Tractor, replacement for Onan P, B Engine 16?20HP. 2.OEM Number: Voltage regulator replace part number for Onan is 191 1748, 191 2106, 191 2208, 191 2227, for John Deere is 318 420. 3.Feature: In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. 4.Advantages: This voltage regulator is used to regulate DC voltages and it is safe to use. Exquisite workmanship, high accuracy. 5.Performance: ABS and metal material, excellent heat dissipation performance, precise and firm, high strength, not easy to break, sturdy and durable. Specification: Item Type: Voltage Regulator Rectifier Material: ABS and metal OEM: for Onan :191 1748, 191 2106, 191 2208, 191 2227 for John Deere : 318 420 Voltage: DC12 V Applicable Models: Replacement for John Deere Lawn Mower Tractor Replacement for Onan P, B Engine 16?20HP Note: 1.Please double check the part number of your item, matching information is for reference only. 2.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!