Outboard Lower Unit Oil Seal & O-ring 93101-22M00 93210-74MG5 Yamaha 40XMH 40XE

Outboard Lower Unit Oil Seal & O-ring for Yamaha

This outboard lower unit oil seal and O-ring set fits Yamaha 40XMH and 40XE outboard motors and replaces OEM part numbers 93101-22M00 and 93210-74MG5 to keep water out and oil in the lower unit.

Overview

This outboard lower unit oil seal and O-ring set is a direct replacement for Yamaha 40XMH and 40XE outboards. It includes both the oil seal and O-ring needed to maintain a proper seal in the gearcase, preventing water entry and oil leaks. Designed for marine use, this set is essential for lower unit maintenance and repair.

Built For Performance

• Precision-molded oil seal matches OEM dimensions for a secure fit
• O-ring provides a positive seal against water and pressure
• Made from marine-grade rubber resistant to oil and saltwater
• Includes both parts needed for a complete lower unit reseal
• Meets or exceeds OEM specifications for durability

Fits These Machines

• for Yamaha 40XMH
• for Yamaha 40XE

On-The-Job Use

• Replace worn seals during lower unit gear oil service
• Used when repairing a leaking gearcase or water intrusion
• Installed during lower unit rebuild or reseal projects
• Common maintenance for recreational and commercial outboards

Specs At A Glance

Good To Know

Q: How do I know if my lower unit needs new seals? A: If you see water in the gear oil or notice oil leaking from the lower unit, the seals are likely worn and should be replaced.

Q: Can I install these seals myself? A: Yes, with basic hand tools and a seal driver, but proper torque and alignment are critical to avoid damage.

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