Crank Shaft Position Sensor for MerCruiser Volvo Penta 4.3L 5.0L 6.2L 3858979

Crank Shaft Position Sensor for MerCruiser and Volvo Penta

This crank shaft position sensor for MerCruiser and Volvo Penta engines monitors the rotational speed and position of the crankshaft, providing essential data to the engine control module for ignition timing and fuel injection, referencing OEM cross-reference number 3858979.

Overview

This crank shaft position sensor is a critical component for marine engines, ensuring accurate ignition timing and smooth operation. It is designed for MerCruiser and Volvo Penta models with 4.3L, 5.0L, and 6.2L displacements, offering reliable performance in demanding conditions.

Built For Performance

• Precision-machined for an exact fit
• Rugged construction to withstand engine vibrations
• Direct replacement for OEM part 3858979
• Corrosion-resistant for marine use
• Consistent signal output for stable engine operation
• Easy installation with plug-and-play connector

Fits These Machines

• for MerCruiser 4.3L
• for MerCruiser 5.0L
• for MerCruiser 6.2L
• for Volvo Penta 4.3L
• for Volvo Penta 5.0L
• for Volvo Penta 6.2L

On-The-Job Use

• Commonly used in marine powerboats and cruisers
• Helps maintain engine stability and prevent misfires
• Essential for proper fuel injection and ignition timing
• Often replaced during routine engine maintenance

Specs At A Glance

Good To Know

Q: Is this sensor compatible with both MerCruiser and Volvo Penta engines? A: Yes, it is designed to fit both brands with the specified engine displacements.

Q: What are the symptoms of a failing crank shaft position sensor? A: Engine may stall, hesitate, or fail to start. Replacing it with this OEM-equivalent sensor can restore reliable performance.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.