(2) Drain Fill Plug for Johnson Evinrude OMC Outboard 8-115 HP - 0307551 311598

Drain Fill Plug for Johnson Evinrude OMC

This drain fill plug is a direct replacement for Johnson, Evinrude, and OMC outboard motors, designed to seal the gearcase drain and fill holes and referencing OEM cross-reference numbers 0307551 and 311598.

Overview

This drain fill plug provides a secure seal for the gearcase drain and fill ports on Johnson, Evinrude, and OMC outboards from 8 to 115 HP. It is a direct replacement part, ensuring proper oil retention and preventing leaks during gearcase maintenance. The plug is built to withstand marine environments and repeated use.

Built For Performance

• Constructed from corrosion-resistant materials for long service life in saltwater and freshwater
• Precision-threaded to match OEM specifications for a tight, leak-free seal
• Resists vibration and loosening under engine operation
• Easy to install with common hand tools
• Manufactured to OEM tolerances for direct replacement

Fits These Machines

• for Johnson Evinrude OMC outboards 8-115 HP

On-The-Job Use

• Replacing worn or lost drain fill plugs during gearcase oil changes
• Serving as a spare plug for quick on-water repairs
• Ensuring a clean seal after draining gearcase oil
• Maintaining proper lubrication in outboard lower units

Specs At A Glance

Good To Know

Q: Will this plug fit a 1990 Evinrude 50 HP? A: This plug is designed for Johnson, Evinrude, and OMC outboards in the 8-115 HP range, which typically covers the 50 HP models of that era, but we recommend verifying your gearcase configuration.

Q: Is this a set of two plugs? A: Yes, the listing includes two drain fill plugs, suitable for both the drain and fill ports on most outboard gearcases.

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