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Spend a few moments with the knowledgeable service technicians to learn very important suggestions for your equipment.

Mitsubishi S12R S12R-F1PTAW2 S12R-PTA OEM crankshaft 37720-10011 37720-10012

Here are V12 crankshaft assy S12R and V16 crankshaft  S16R. Both are OEM crankshaft used for genset and marine. Gear teeth 56T & 75T.