The Shibaura 399160070 is a genuine OEM belt tensioner designed for optimal performance and durability in Shibaura N843, N844, N844T, N844L, N844LT, and N844L-T engines. This critical component ensures proper belt tension, preventing slippage and extending the life of engine belts and associated components. It is also compatible with a wide range of Massey Ferguson tractors, including models in the 1500, 2600, 4600, and GC series, ensuring reliable operation in agricultural and utility applications.