Features: 1. Fitment: Voltage regulator rectifier is professionally manufactured, suitable for John Deere 130 160 165, direct replacement. 2. Part Number: Replaces OE numbers SH578 12, M70121, M97348, 21066-2056, 21066-2070 for reference; built to meet OEM specifications. 3. Better Heat Dissipation: The voltage regulator is made of high-strength aluminum with improved heat dissipation design for extended service life. 4. Protect Battery: The rectifier helps stop charging when the battery is full, preventing overcharging and extending battery life. 5. Waterproof and Shockproof: Integrated full-sealing process provides waterproof and shockproof performance. Rust-resistant materials help prolong rectifier life. 6. High Performance: Utilizes high-quality laminated materials and electronic components to improve charging efficiency. Specification: Item Type: Voltage Regulator Material: Aluminum Operating Voltage: 12V Terminal ID: B+, IGN, B- / AC, L, AC OE Number: SH578 12 Compatible with John Deere: M70121, M97348, 21066-2056, 21066-2070 Fitment: For John Deere 130, 160, 165 Note: 1. Please verify the part number of your existing unit; compatibility information is for reference only. 2. If uncertain about compatibility, please contact the seller prior to purchase to ensure correct fitment.