This genuine McCormick 3549432M2 piston is engineered for optimal performance in a range of Massey Ferguson agricultural and industrial machinery. Featuring a 91.44mm bore diameter, a 35mm piston pin, and an overall length of 106.5mm, this piston ensures precise fitment and reliable engine operation. The compression height from the pin center to the piston crown is 57.5mm. It is designed with ring grooves measuring 2.38mm (top), 2.38mm (middle), and 4.76mm (oil). This high-quality engine component is a direct replacement for OEM part numbers including 731174M91 and 7431174M91.