Mercury 26-43036 Drive Shaft Oil Seal Fits 40-125 HP Engine 18-0522 18-0583 2pcs

Drive Shaft Oil Seal for Mercury

This drive shaft oil seal for Mercury, part number 26-43036, seals the drive shaft on 40-125 HP engines to prevent oil leaks, and it directly replaces OEM cross references 18-0522 and 18-0583.

Overview

The drive shaft oil seal is a critical component for preventing gearcase oil from leaking along the drive shaft in Mercury outboard engines. Designed for engines in the 40-125 HP range, this drive shaft oil seal ensures reliable sealing under high-speed rotation. It is suitable for boaters who need a dependable replacement for their worn or damaged seal.

Built For Performance

• Precision-machined sealing lip for a tight fit
• Constructed from oil-resistant nitrile rubber for long service life
• Includes two seals for complete replacement
• Matches OEM specifications for Mercury 40-125 HP engines
• Compatible with cross references 18-0522 and 18-0583

On-The-Job Use

• Replacing worn drive shaft seals in outboard lower units
• Maintaining lubrication in marine engines during routine service
• Preventing water intrusion and oil leaks in saltwater or freshwater environments
• Installing during lower unit rebuilds to ensure long-term reliability

Specs At A Glance

Good To Know

Q: Is this seal the right part for my Mercury engine? A: This drive shaft oil seal is designed for Mercury outboard engines from 40 to 125 HP. Always verify your engine model and serial number to confirm compatibility.

Q: What does cross-referencing mean? A: The numbers 18-0522 and 18-0583 are OEM part numbers that this seal replaces, giving you a direct substitution for those original parts.

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