9-53420 Mallory Piston Std Johnson / Evinrude 85- 235hp 1974-98 Manufacturer: Mallory Part Number: 9-53420 Condition: New Replaces: Sierra 18-4120, Johnson/Evinrude 393271, 393924, 5006658, 5006661, Wiseco 3073PS, 3173PS. Key Features: • Standard Additional Details: • Bore Size: 3.500 (verify fitment using your model or serial number)
