Bravo Input Shaft Seal & Carrier (8M0171142)

Bravo Input Shaft Seal & Carrier

The Bravo Input Shaft Seal & Carrier is a critical component for maintaining the integrity and reliability of your MerCruiser Bravo sterndrive. Designed to prevent water intrusion and gear oil leakage, this seal and carrier assembly protects your upper gearcase from serious internal damage. If you’re experiencing leaks around the input shaft or notice milky gear oil, replacing this part is a must.

Essential Leak Protection

This input shaft seal and carrier form a watertight barrier at the front of the upper gear housing. Over time, wear, heat, and debris can break down the original seal, risking costly internal corrosion. Installing a new seal and carrier helps prevent moisture from entering the gearcase while also keeping gear oil from escaping.

OEM Fit and Durability

Built to OEM specifications, this replacement part is made from high-quality materials that stand up to harsh marine environments. It fits precisely in MerCruiser Bravo I, II, and III drives and is compatible with both petrol and diesel applications. The robust carrier housing ensures a tight seal and long service life.

Straightforward Installation

Whether you’re a boat owner doing preventive maintenance or a marine mechanic addressing a leak, this kit simplifies the repair process. It installs cleanly into the upper gearcase with basic tools, restoring your drive’s performance and protection with minimal downtime.

Protect Your Gearcase Investment

Leaks from a damaged input seal can lead to overheating, gear failure, and water contamination—all of which result in expensive repairs. Replacing a worn seal and carrier is an affordable way to avoid major issues and extend the life of your Bravo sterndrive.

Why Choose the Bravo Input Shaft Seal & Carrier?

Reliable, rugged, and easy to install, this component delivers peace of mind and proven protection. Whether you’re servicing your Bravo drive as part of routine maintenance or fixing an ongoing issue, this replacement part helps keep your boat running strong.

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