3131-5991 - Crankshaft, 3054 for В Stroke - 5.000 Bore - 3.9385 - 3.9395 Rod - 2.4988 - 2.4996 Main - 2.9984 - 2.9992 Flange - No Centering Ring, Flat, 10 Bolt Holes, 1 Dowel, Lip Seal Snout - Splined, 3 Bolt Hol

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