The Mahle MG251 is a high-quality 14-volt, 90-ampere alternator designed for reliable power generation in various New Holland and Case IH agricultural tractors and machinery. This genuine Mahle alternator features a 6-groove pulley and clockwise rotation, providing efficient charging without a vacuum pump. It serves as a direct replacement for OEM part number 87403923, ensuring optimal fit and performance for compatible models across CNH Industrial brands.