JOHNSON EVINRUDE OMC CRANK SHAFT BEARING REPLACES 0437088 0388344 378223 18-1378

Crank Shaft Bearing for Johnson Evinrude OMC

This crank shaft bearing is a direct replacement for Johnson, Evinrude, and OMC outboard motors, providing smooth rotation and support for the crankshaft. Replaces OEM numbers 0437088, 0388344, and 378223, as well as aftermarket 18-1378.

Overview

The crank shaft bearing is a critical component that supports the crankshaft in Johnson, Evinrude, and OMC outboard engines, ensuring smooth rotation and reducing friction. This replacement bearing matches OEM specs for reliable performance. It is designed for use in two-stroke outboard motors from these brands.

Built For Performance

• Replaces OEM part numbers 0437088, 0388344, and 378223
• Also replaces aftermarket part 18-1378
• Designed for Johnson, Evinrude, and OMC outboards
• Provides smooth crankshaft rotation
• Supports engine load during operation
• Helps maintain proper oil clearance

On-The-Job Use

• Used during engine rebuilds
• Commonly replaced when bearing wear is detected
• Essential for outboard maintenance
• Works in both saltwater and freshwater environments
• Ensures reliable engine operation at various RPMs

Specs At A Glance

Good To Know

Q: What is the difference between this and the OEM part? A: This is an aftermarket replacement that meets or exceeds OEM specifications for fit and function.

Q: How do I know if my bearing is worn? A: Listen for knocking sounds or check for excessive play in the crankshaft during inspection.

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