Starter Relay Solenoid For YFM400 Big Bear Kodiak YFM450 Wolverine YFM660 R YXR450 YXR660 Nytro The 4BH-81940-00-00 Starter Relay Solenoid is constructed using metal and rubber plastic materials, designed to endure the demands of off-road vehicle use.This build supports long-term function in challenging environments.It is engineered to operate reliably under temperature conditions, with a thermal resistance rating up to 105℃.This starter relay solenoid offers broad compatibility with off-road vehicles including models such as YFM400 Big Bear, Kodiak, YFM450 Wolverine, YFM660 R, YXR450, YXR660, and Nytro.It serves as a direct replacement for existing units, providing consistent electrical performance for starting systems.Designed for straightforward installation, the unit comes as a complete set with all necessary components shown in the reference image.Its design stable engagement and connection between the and starter motor, supporting dependable start-up in demanding conditions.