Description
Fits: OMC Cobra Sterndrive 400 Series | 120–260 HP | 4, 6 & 8 Cylinder | OEM #983505 | Remanufactured
This fully remanufactured OMC 400 Sterndrive Lower Unit is built to restore performance for 120–260 HP 4, 6, and 8-cylinder engines. Compatible with OEM #983505, it’s the ideal solution for those maintaining or upgrading their OMC sterndrive 400. Built with certified precision in the USA, this lower unit for a boat offers lasting reliability and a 1-year limited warranty.
Features & Benefits
- Fits OMC Cobra 400 Series Sterndrive engines (120–260 HP)
- Compatible with 4, 6, & 8-cylinder configurations
- Direct replacement for OEM #983505
- Rebuilt using OEM parts by certified mechanics in the USA
- Factory-tested for long-lasting performance
- Gray primer finish with included spray paint can for final coat
Pricing
Total Price: $2,045
Less $250 Refundable Core Deposit Final Price: $1,795
Product Finish
- Ships in gray primer finish
- For custom matching, your order includes factory spray paint to finish if desired
Core Deposit Information
- Return your old core, get up to $250 back.
- Refund 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, watch out our Boat Maintenance Checklist






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