Mercury – Driven Gear Bearing | Bravo-Series Sterndrives | Precision-Hardened Steel | 861792

Overview
When you spend enough weekends chasing calm water at sunrise or throttling up through a late-afternoon chop, you start to appreciate the parts you never actually see. The ones buried deep inside the sterndrive that keep everything feeling tight, smooth, and predictable. The Mercury Marine part number 861792 Driven Gear Bearing is one of those pieces you trust without needing to think about it. You install it, you head back out, and you just know the drive beneath you is ready for whatever the day turns into.

Key Features

• Complete driven gear bearing assembly ready for installation

• Precision-ground bearing surfaces for smooth, steady rotation

• Hardened marine-grade steel for durability under heavy load

• Built to exact Mercury Marine OEM specifications

• Designed for consistent alignment and driveline stability in Bravo drives

Engine & Boat Compatibility

• Fits MerCruiser Bravo I, Bravo II, Bravo III, Bravo X, Bravo XR, and Bravo XZ sterndrives

• Suitable for performance sterndrive boats, offshore hulls, sport boats, cruisers, and high-load applications

• Ideal for any Bravo-series sterndrive requiring OEM-grade gear bearing support

Performance & Practical Benefits
A driven gear bearing may not be flashy, but out on real water, it plays a starring role in how your boat feels. This 861792 bearing cradles the driven gear with a smooth, secure fit that holds everything true. The rotation feels tight without binding, steady without chatter. You’ll feel the benefit each time you push out of the marina or ease into a long, relaxed cruise.

The hardened steel resists the punishment that naturally comes with Bravo-series power—shock loads, vibration, long runs, tight turns, and the occasional unexpected jolt from the water beneath you. By maintaining alignment and reducing friction, it helps the entire gear assembly last longer and operate quieter.

Installation is straightforward for technicians familiar with Bravo drives. Fitment is exact, so there’s no hunting for shims or compensating for cheap machining. It seats properly, protects your gears, and gives your drive the steady backbone it needs to perform its best.

Why Buy OEM
When it comes to sterndrive internals, there’s simply no room for approximation. Aftermarket bearings can look fine at first glance, but slight inconsistencies in hardness, machining, or surface finish can cause noise, premature wear, or failure. The 861792 is built to the same standard your drive was built with—nothing more, nothing less.

Choosing OEM ensures:

• Proper tolerances and seamless compatibility

• Long-term reliability and fewer unexpected breakdowns

• Materials and machining trusted by Mercury Marine

• A smart, cost-effective choice over time, especially for high-load boating

It’s the kind of decision seasoned boaters make because they’ve already lived through what happens when you cut corners.

FAQ

Q1: Which Mercury engines or systems does the Driven Gear Bearing 861792 fit?
It fits MerCruiser Bravo I, II, III, X, XR, and XZ sterndrives.

Q2: What sets this part apart from aftermarket bearings?
OEM bearings offer superior machining accuracy, correct hardness, and proven durability.

Q3: How do I confirm this is the right bearing for my drive?
Match your sterndrive model and serial number with the specifications in your service manual.

Q4: Is this part suitable for both saltwater and freshwater boating?
Yes—its hardened steel build performs well in all typical marine environments.

Q5: Is installation simple for most boat owners?
Bearing installation is best handled by a qualified marine technician, but the part itself is designed for clean, exact fitment.