878421 Propeller Exhaust Seal Ring for Mercury Trophy Plus Powertech TRO4

Propeller Exhaust Seal Ring for Mercury Trophy Plus & Powertech TRO4

This propeller exhaust seal ring is designed for Mercury Trophy Plus and Powertech TRO4 propellers, serving as a direct replacement for OEM part number 878421 to prevent exhaust leaks and water intrusion.

Overview

The propeller exhaust seal ring for Mercury and Powertech propellers ensures a tight seal between the propeller and exhaust system, maintaining optimal engine performance. This seal ring is essential for boat owners and mechanics looking to replace worn components on compatible propellers. Its construction focuses on durability and precise fit for the specific models listed.

Built For Performance

• Constructed from marine-grade rubber for long-lasting durability
• Precision molded to match OEM specifications for a perfect fit
• Provides a tight seal to prevent exhaust leakage and water intrusion
• Resistant to saltwater, fuel, and harsh marine environments
• Direct replacement for OEM part number 878421
• Ensures consistent performance of Mercury Trophy Plus and Powertech TRO4 propellers

On-The-Job Use

• Replacing worn seal rings on outboard and sterndrive propellers
• Maintaining proper exhaust flow during high-speed operation
• Preventing water from entering the propeller hub
• Restoring performance on older propellers

Specs At A Glance

Good To Know

Q: Will this seal ring fit other brands of propellers? A: This seal ring is specifically designed for Mercury Trophy Plus and Powertech TRO4 propellers; using it on others may not provide a proper seal.

Q: Is installation difficult? A: Installation is straightforward; simply slide the seal ring onto the propeller shaft before attaching the propeller, ensuring it is seated correctly.

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