26-43036 43035 For Mercury Mercruiser Quicksilver Oil Seal 18-0522 18-0583 85170

Oil Seal for Mercury Mercruiser Quicksilver

This oil seal for Mercury Mercruiser Quicksilver replaces OEM cross-reference numbers 18-0522, 18-0583, and 85170, sealing the drive shaft to prevent oil leaks and water intrusion.

Overview

This oil seal for Mercury Mercruiser Quicksilver is a precision component that keeps lubricating oil inside the gearcase while blocking water and debris. Constructed from durable rubber and metal, it fits securely in the drive shaft bore. This oil seal is a reliable replacement for worn seals in marine propulsion systems.

Built For Performance

• Precision-molded sealing lip prevents oil leakage
• Corrosion-resistant metal outer casing
• High-grade rubber compound withstands marine environments
• Direct replacement for OEM part numbers 18-0522, 18-0583, 85170
• Engineered to match original dimensions and tolerances

On-The-Job Use

• Seals the drive shaft in Mercury Mercruiser outboard lower units
• Prevents gear oil loss in sterndrive systems
• Blocks water ingress during submersion
• Maintains pressure in gearcase assemblies

Specs At A Glance

Good To Know

Q: How do I know this oil seal fits my Mercury Mercruiser? A: Check your existing part number against the cross references listed. This seal matches OEM numbers 18-0522, 18-0583, and 85170.

Q: Can this oil seal be used in saltwater applications? A: Yes, the corrosion-resistant casing and rubber compound are designed for marine environments, including saltwater.

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