Mercury – Quicksilver Driveshaft Housing Seal Kit | Sterndrive Maintenance Kit | Rubber and Composite | 16709A2

Overview

A sterndrive only performs as well as the seals protecting it. The Mercury Marine 16709A2 Quicksilver Driveshaft Housing Seal Kit keeps your MerCruiser Bravo drive watertight and running smooth. Designed for Bravo I, II, III, X, XR, and XZ sterndrives, this OEM kit includes the seals, gaskets, and o-rings you need to restore factory-tight protection in your driveshaft housing. It’s precision-built for durability and fit, so when you finish your service, you can trust your drive to stay sealed and strong through long seasons on the water.

Key Features

• Purpose: Replaces worn seals and o-rings to maintain a watertight driveshaft housing and proper gearcase pressure.
• Material: Made from high-quality rubber and composite materials designed to withstand oil, heat, and salt exposure.
• Design Detail: Precision-molded to Mercury Marine OEM specifications for exact fit and consistent sealing.
• Contents: Includes all necessary seals, gaskets, and o-rings for a full driveshaft housing reseal.
• Performance: Keeps water out, gear lube in, and your Bravo drive running at peak efficiency.

Engine & Boat Compatibility

• MerCruiser Bravo I, Bravo II, Bravo III, X, XR, and XZ sterndrives.
• Commonly found on cruisers, performance boats, and sport-fishing vessels running Bravo drives.
• Suitable for both freshwater and saltwater use.
• Recommended anytime the driveshaft housing is serviced or removed.

Performance & Practical Benefits

This kit does more than just seal the housing — it protects your entire drive from water intrusion and gear lube leaks. The seals are built from oil- and heat-resistant materials that hold their shape under load and temperature changes. Each gasket and o-ring is sized to Mercury’s exact tolerances for a leak-free installation every time.

By replacing these seals during maintenance, you prevent costly corrosion and gear damage. Once installed, you’ll have confidence that your Bravo drive is tight, protected, and ready for long runs without worry.

Why Buy OEM

Seals and o-rings might look alike across brands, but fit and material quality are what make the difference. The Quicksilver 16709A2 is a genuine Mercury Marine part, molded and tested to withstand the torque, vibration, and salt exposure of real marine environments.

With OEM parts, you know you’re getting the correct dimensions, material hardness, and performance standards. It’s the same quality Mercury uses in their factory assemblies, giving you reliability that aftermarket kits simply can’t guarantee. When it comes to sealing your drive, precision isn’t optional — it’s protection.

FAQ

Q1: Which MerCruiser drives does this kit fit?
It fits Bravo I, Bravo II, Bravo III, Bravo X, Bravo XR, and Bravo XZ sterndrives.

Q2: What’s included in the kit?
It includes all seals, o-rings, and gaskets needed to reseal the driveshaft housing.

Q3: What makes this kit better than aftermarket options?
It’s built to Mercury’s OEM specs, ensuring perfect fit, correct material composition, and reliable sealing performance.

Q4: Can it be used in saltwater environments?
Yes — the rubber and composite materials resist salt, oil, and temperature damage.

Q5: When should I replace these seals?
Anytime the driveshaft housing is removed or serviced, or if you notice water contamination in your gear lube.