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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
As a direct replacement for Yamaha parts 703-82563-02-00 and 703-82563-01-00
use the provided serial number guide to verify your engine details
if wear is detected during routine inspection
Sierra 18-2245
and 6CJ-W0078-02
3854905 Knock Sensor Assembly for Volvo Penta OMC | JLM Marine family-yamaha-50elg As a direct replacement forKnock Sensor Assembly Fits Volvo Penta & OMC Cobra Sterndrive Marine Engines This aftermarket Marine Knock Sensor Assembly is designed for Volvo Penta stern drive and OMC Cobra sterndrive marine engines. Engineered to detect engine knock and optimize ignition timing, this sensor ensures smooth performance and engine protection in marine applications. Directly replaces OEM part numbers Volvo Penta 3854905, OMC Cobra 3854905, Sierra 18 7679, and Mallory