Compatibility: Designed for use with John Deere equipment, this spanner socket is compatible with lock nut SU37820. Spanner Nut no. ref :: SU37820/AM127174/LVU10743 Precise Fit: Engineered to fit the specified lock nut securely, allowing for efficient and accurate tightening or loosening. Application: Applications:3033R/3036E/3038R/3039R/3045R/3046R/3120/3203/3320/3520/3720/4044M/4044R/4049M/4049R/4052M/4052R/4066M/4066R/4105/4120/4200/4210/4300/4310/4320/4400/4500/4520/4600/4610/4700/4710/4720/5040D/5045D5050D/5105/5205 Trusted Brand: HGV TOOLS offers reliable and dependable products to meet the demands of professionals and DIY enthusiasts alike. Use to remove and torque to specification the spanner nut holding drive shaft yoke on primary countershaft gear box Application: Applications:3033R/3036E/3038R/3039R/3045R/3046R/3120/3203/3320/3520/3720/4044M/4044R/4049M/4049R/4052M/4052R/4066M/4066R/4105/4120/4200/4210/4300/4310/4320/4400/4500/4520/4600/4610/4700/4710/4720/5040D/5045D5050D/5105/5205 Spanner Nut no. ref :: SU37820/AM127174/LVU10743