18-4120 - Piston, Crossflow, Standard 3.500 Inch
18-4120 Std Crossflow Piston OMC 393271
Sierra Marine Piston is equivalent to parts:
- 5006661 Evinrude Johnson OMC BRP
- 5006658 Evinrude Johnson OMC BRP
- 9-53420 Mallory Marine
Additional information about this part can be found on page(s) 242 of the Sierra Marine catalog.
Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.
18-4120 - Piston, Crossflow, Standard 3.500 Inch Sierra Marine 18-4120 18-4120 Std Crossflow Piston OMC 393271 $92.92