2Pcs 26-413651 26-41365 18-0581 Oil Seal For Mercury Mariner 6-15 HP Outboard

Oil Seal for Mercury Mariner

This 2-piece oil seal set for Mercury Mariner 6-15 HP outboard motors serves as a direct replacement for OEM cross-reference numbers 26-413651, 26-41365, and 18-0581, sealing the gearcase to keep lubricant in and water out.

Overview

This oil seal for Mercury Mariner outboard is designed to replace worn seals in lower unit assemblies, preventing oil leaks and protecting internal components on 6-15 HP motors. This oil seal set includes two precision seals, making it a practical replacement for routine maintenance on Mercury Mariner outboards.

Built For Performance

• Two-piece set includes the seals needed for a complete lower unit reseal
• Directly replaces OEM numbers 26-413651, 26-41365, and 18-0581
• Constructed to withstand oil, heat, and water exposure in marine environments
• Provides a tight seal to help maintain proper gearcase pressure
• Engineered for Mercury Mariner 6-15 HP outboard applications

Fits These Machines

• for Mercury 6 HP outboard
• for Mercury 8 HP outboard
• for Mercury 9.9 HP outboard
• for Mercury 15 HP outboard
• for Mariner 6 HP outboard
• for Mariner 8 HP outboard
• for Mariner 9.9 HP outboard
• for Mariner 15 HP outboard

On-The-Job Use

• Installed during gearcase reseal on small outboard lower units
• Used on propeller shaft and driveshaft areas where oil sealing is critical
• Commonly fitted during water pump replacement or lower unit service
• Applied during routine maintenance to prevent corrosion from water intrusion

Specs At A Glance

Good To Know

Q: How do I know when this oil seal needs replacing? A: Signs include oil leaking from the lower unit or water entering the gearcase. Inspect the seal during gearcase service or after overheat events.

Q: Can this seal be used on both Mercury and Mariner models? A: Yes, this oil seal is designed for Mercury Mariner 6-15 HP outboards that use the OEM numbers listed, so confirm your model's serial number before ordering.

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