Description
OEM MerCruiser Alpha One Gen 2 Lower Unit – 815822A53 (1991–2011)
Restore your sterndrive’s performance with this brand-new factory OEM MerCruiser Alpha One Gen 2 Lower Unit, designed for use with Alpha One Gen II sterndrives from 1991 through 2011. Built by Mercury Marine, this lower gearcase is not aftermarket or rebuilt — it is a 100% genuine OEM part. If you’re replacing a damaged unit or upgrading for better reliability, this lower unit offers factory-fit precision, performance, and warranty support.
With OEM part number 815822A53, this MerCruiser Alpha One Gen 2 Lower Gearcase features the latest updates for optimal reliability and compatibility with your Alpha Gen 2 system. It’s built to handle engines up to 300 HP and comes fully assembled, ready to bolt on and get you back on the water quickly.
This lower unit is ideal for those seeking a direct MerCruiser Alpha 1 Gen 2 lower unit replacement, whether for regular use, seasonal boating, or resale value restoration. If you’re searching for a MerCruiser lower unit for sale that offers long-term durability, a strong warranty, and factory performance, this is your best option.
Features & Benefits:
- 🔧 OEM Built: Precision-manufactured by Mercury Marine to original factory specs
- 🛠️ Fully Assembled: Shipped pre-filled with OEM-approved gear lube
- ⚙️ Durable Housing: Built for freshwater and saltwater resistance
- 📏 Exact Fitment: Designed specifically for MerCruiser Alpha 1 Gen 2 transoms
- 🕒 Long Service Life: Backed by a 1-Year OEM Warranty
- ♻️ Core Rebate Program: Get money back for returning your used lower unit
Pricing
Total Price: $2,830
Less $200 Core Rebate
Final Price: $2,630
Product Finish:
- High-gloss black marine coating
- Corrosion-resistant finish for salt and freshwater
- Built for long-term protection and durability
Core Rebate Information
- Return your old core, get up to $200 back
- Rebate amount may vary based on the condition of your core.
- Please review our Core Policy for details on how to return your old core and claim your deposit.
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
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