2Pcs Tilt End Cap Seal Guide Assy for Mercury Mariner 8M0021648 99638A1 878243A1

Tilt End Cap Seal Guide Assembly for Mercury Mariner

This set of two Tilt End Cap Seal Guide Assemblies (part numbers 8M0021648, 99638A1, 878243A1) is a direct replacement for the seals and guides in the tilt/trim unit of Mercury Mariner outboards. It ensures proper sealing and smooth operation of the tilt mechanism.

Overview

The Tilt End Cap Seal Guide Assembly is a vital component that keeps the tilt cylinder sealed and guides the piston rod during operation. This two-piece set fits Mercury Mariner outboards and replaces worn seals and guides to prevent fluid leaks and maintain consistent tilt performance. It is a reliable repair solution for common tilt/trim issues.

Built For Performance

• Precision-molded seals for a leak-free seal
• Includes both end cap seals for a complete repair
• Compatible with Mercury Mariner tilt/trim systems
• Manufactured to meet OEM specifications
• Resistant to hydraulic fluid and weather
• Easy to install with basic tools

On-The-Job Use

• Repairs leaking tilt cylinders
• Restores smooth tilt up and down movement
• Prevents corrosion inside the tilt unit
• Used during routine maintenance of outboard trim systems
• Ideal for DIY boaters and marine mechanics

Specs At A Glance

Good To Know

Q: Are these seals compatible with all Mercury Mariner outboards? A: These seal guides are designed for use with Mercury Mariner tilt/trim units, but fitment can vary by model and serial number, so confirm compatibility before ordering.

Q: Can I replace these seals without draining the hydraulic fluid? A: It is recommended to drain the fluid and relieve pressure before replacing the seals to avoid spillage and ensure a clean installation.

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