Quicksilver Drives, Gearcases & Transoms
Quicksilver 5121200TP Alpha One Gen II Sterndrive 1.47 Ratio Standard Rotation
Representative Photo, actual item may vary
Quicksilver 5447400TZ Bravo III X Sterndrive 1.81:1 Gear Ratio Dual Water Pickup
Quicksilver 1623-859399T13 V-6 Outboard Gear Housing Assembly Standard Rotation 20" 1.75 Ratio
Quicksilver 806031A2 Bell Housing Assembly MerCruiser Alpha I Gen II Sterndrive
Quicksilver 43713 Gimbal Housing Transom Foam Seal for MerCruiser Alpha One Gen II & Bravo Stern Drives
Quicksilver 865328A01 Gimbal Ring Assembly MerCruiser Alpha One Gen II Sterndrive
Quicksilver 8M0062440 MerCruiser Bravo Gimbal Ring Assembly with Trim Senders
Quicksilver 803098T1 Sterndrive Transom Seal Repair Kit for MerCruiser Alpha One
Quicksilver 847637 Gimbal Ring Trim Sender Bearing Bushing for MerCruiser Alpha One Gen II
Representative Photo, actual item may vary
Quicksilver 8M0224553 100 Hour Maintenance Kit for Yamaha 200-350 and XTO 425 Outboards
Quicksilver 8M0222310 100 Hour Maintenance Kit for Suzuki DF70A/DF75A/DF80A/DF90A Outboards
Quicksilver 8M0222309 100 Hour Maintenance Kit for Suzuki DF150A/DF175A/DF200A Outboards
Quicksilver 8M0222308 100 Hour Maintenance Kit for Suzuki DF150/175/150SS Outboard
Quicksilver 8M0222306 100 Hour Maintenance Kit for Suzuki DF40A/50A/60A Outboards
Quicksilver 8M0222305 100 Hour Maintenance Kit for Suzuki 200-350 HP Outboards
Quicksilver 8M0222280 100 Hour Maintenance Kit for Yamaha F50/F60/T60/F115 Outboards
Quicksilver Drives, Gearcases & Transoms
When it comes to the mechanical heart of a sterndrive or outboard system, few names carry the authority of Quicksilver. As the official parts and accessories brand of Mercury Marine, Quicksilver brings decades of engineering precision to every component in the drivetrain lineup — and nowhere is that more evident than in their Drives, Gearcases & Transoms category.
Why the Drive System Matters
The gearcase, drive housing, and transom assembly are among the most mechanically demanding components on any powerboat. They endure constant submersion, high torque loads, and the relentless stress of propulsion. A compromised gearcase seal or worn transom assembly doesn't just hurt performance — it can lead to water intrusion, corrosion, and catastrophic drivetrain failure. Using parts engineered to the same specifications as the original equipment is critical for long-term reliability.
Quicksilver's Approach to Drivetrain Components
Quicksilver drive, gearcase, and transom components are designed to meet or exceed the original Mercury Marine and MerCruiser factory specifications. This matters because aftermarket tolerances that miss the mark — even slightly — can accelerate wear on mating surfaces, degrade sealing performance, and void manufacturer warranties. Quicksilver parts are built to fit and function like the originals, making them a trusted choice for professional marine technicians and serious boaters alike.
The lineup includes gearcase housings and lower unit components for a range of Mercury outboard and MerCruiser sterndrive applications, as well as transom-related hardware and assemblies. Whether you're performing a scheduled lower unit service, repairing impact damage, or rebuilding an aging drive, Quicksilver offers components that integrate seamlessly with existing Mercury and MerCruiser powertrains.
OEM Confidence in Every Part
One of the most compelling reasons to choose Quicksilver for drive and gearcase work is traceability. Because Quicksilver is Mercury Marine's own brand, the parts are manufactured and validated within the same engineering ecosystem as the engines and drives themselves. This means consistent metallurgy, precise tolerances, and materials selected for marine-grade corrosion resistance — all attributes that matter greatly in saltwater and freshwater environments alike.
For boaters who want the assurance of genuine Mercury engineering without sourcing parts directly through a dealership, Quicksilver provides that same level of quality in an accessible format. With 12 products available in this category, the selection covers key drivetrain service and replacement needs for a variety of popular Mercury and MerCruiser platforms.
Explore More from Quicksilver
Drives, gearcases, and transoms are just one part of the full Quicksilver marine parts and accessories lineup. From lubricants and filters to propellers and electrical components, Quicksilver offers a comprehensive range of products engineered to keep Mercury-powered boats running at their best. Browse the complete Drives, Gearcases & Transoms category to find the specific components your vessel needs.