Description
Fits Mercury Outboard I-3 #9011J15 (75–90 HP, 6-Dog Reverse, 1987 & Up)
9011J15 mercury lower unit is designed to restore the performance and reliability of 75 to 90 horsepower I-3 Mercury outboard motors from 1987 and newer. Featuring a 6-dog reverse clutch, this gearcase is a direct replacement for OEM part #1667-9011J15 and is rebuilt to exacting specifications by certified marine mechanics.
Using genuine OEM, Mercury Marine components and professional rebuilding standards, these units offer excellent compatibility those looking for dependable alternatives to factory-new mercury outboard lower units.
Whether you’re fixing a fishing boat or maintaining an older 75-90 HP Mercury motor, this lower ensures long-lasting function and value.
Benefits of Our Remanufactured Lower Units
✅ Significant $ Savings
✅ 1-Year Warranty
✅ Remanufactured by Certified Mechanics in the USA
✅ OEM Parts
Pricing
Total Price: $2,195
Less $300 Potential Refundable Core Deposit
👉 Final Price: $1,895
Product Finish
- Gearcases come in gray primer
- Includes a can of factory spray paint for final finishing if desired
Core Deposit Information
- Return your old core, get up to $300 back.
- Refund amount will 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
- ♻️ Recycle your core: Keep boat parts out of the landfill & receive $ back
Useful Resources
- How to find your Boat Engine serial number
- Still deciding? Watch our YouTube video on “How to avoid common lower unit replacement mistakes“
- To help extend the life of your gearcase, check out our Boat Maintenance Checklist
🛥️ Please have your Engine Serial # ready when you contact us if possible. 🛥️





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