This genuine McCormick 6532919M1 Piston Ring Set is an essential component for engine maintenance and overhaul. Designed for Perkins engines with a 95mm bore, including models A4.236, A4.248, A4.318, and A6.354, it ensures optimal compression and engine performance. The set includes three piston rings with specific thicknesses of 2.38mm, 2.38mm, and 4.76mm. This high-quality OEM part is compatible with various Massey Ferguson agricultural and industrial machinery.