The New Holland 5165953 is a genuine OEM piston designed for FPT NEF 4.5L and 6.7L diesel engines. This critical engine component is engineered to precise specifications, featuring a 104 mm diameter, 85 mm height, and a 50 mm compression height. It accommodates a 38 mm x 78 mm piston pin and is designed for three piston rings. This piston is essential for maintaining engine compression and power in a wide range of New Holland agricultural and construction machinery, including various T5, T6, T7, TD5, TS-A series tractors, CX combines, LM telehandlers, L/C series skid steer/compact track loaders, B/W series backhoes/wheel loaders, H series windrowers, FR series forage harvesters, BB series balers, and Braud grape harvesters.