Mercruiser ALPHA 1, GEN 2, 5121300TP

MerCruiser Alpha One Gen 2 Outdrive – 1.62 Ratio | OEM #5121300TP

Fits Alpha I Gen II Sterndrives | OEM Mercury Marine Part | 3-Year Warranty Availa

Looking to restore power and precision to your boat? The MerCruiser Alpha One Gen 2 Outdrive (1.62 Ratio), OEM part number 5121300TP, delivers the reliability and performance that serious boaters demand. Manufactured by Mercury Marine under the Quicksilver OEM brand, this genuine Alpha I Gen II outdrive is built to exact factory specifications and is not an aftermarket substitute.

Ideal for MerCruiser Alpha One Gen 2 systems, this outdrive supports a wide variety of small block V6 and V8 applications, including popular configurations like the MerCruiser 4.3 sterndrive. Its 1.62 gear ratio provides a balanced combination of speed and torque, perfect for both cruising and towing.

Quicksilver, Mercury Marine’s original equipment parts provider since 1950, ensures top-tier durability, reliability, and hydrodynamic efficiency with this factory-assembled outdrive unit. This drive includes both upper and lower units and is pre-filled, sealed, and ready for immediate installation.

Features & Benefits:

• ⚙️ Genuine OEM Quality: Quicksilver-manufactured Mercury Marine drive
• 🔁 Direct Replacement: Exact-fit Alpha Gen 2 design, fully assembled
• 🌊 Built for Marine Conditions: Saltwater-resistant materials and coatings
• 🔧 Compatible with Existing Transom Assemblies
• 🧰 Plug-and-Play Installation: Arrives ready for mounting
• 💵 Eligible for Core Rebate: Return old drive for up to $400 back
• 🛡️ Warranty: Backed by Mercury’s 1-Year Limited Warranty
• 📞 Support Available: Call for fitment and technical guidance

Pricing

Total Price: $3,775
Less $400 Core Rebate
Final Price: $3,375

Product Finish:

• Factory-finished, corrosion-resistant coating
• Pre-lubricated, pressure-tested, and sealed
• OEM-level durability and craftsmanship

Core Rebate Information

• Return your old core, get up to $400 back
• Rebate amount will vary based on the condition of your core
• ♻️ Recycle your core- keep boat parts out of the landfill

Useful Resources

• 🔍 How to find your Boat Engine serial number
• Still deciding? Watch our YouTube video How avoid common lower unit replacement mistakes
• To help extend the life of your gearcase, check out our Boat Maintenance Checklist