Sierra 18-7556 Crankshaft Position Sensor for Mercury MerCruiser 5.0L 6.2L

The Sierra 18-7556 Crankshaft Position Sensor is a precision-engineered engine management component designed specifically for Mercury MerCruiser 5.0L and 6.2L fuel-injected inboard engines manufactured from 1998 to 2010. This sensor provides critical timing information to the engine control module, ensuring optimal ignition timing and fuel delivery for reliable engine performance.

Key Features:

• Engineered to meet or exceed OEM specifications using advanced magnetic technology
• Provides accurate signal output in demanding marine environments
• Direct replacement for MerCruiser part numbers 864297, 864297001, and 864297T01
• Also replaces Indmar part number 556293
• Designed for engines with composite (plastic) timing covers
• Backed by manufacturer warranty against defects in materials and workmanship

This crankshaft position sensor is essential for proper engine operation and can resolve common issues including engine misfires, rough running, stalling, check engine light activation, poor acceleration, and intermittent no-start conditions. Sierra Marine has been manufacturing premium engine management components for over 40 years, and each sensor undergoes rigorous testing to ensure reliable performance and longevity in marine applications.