Tired of poor performance and propeller cavitation caused by an improperly sized outboard engine. This high-quality Outboard Extension Kit from Bay Manufacturing is the perfect long shaft conversion solution. Designed for Mercury 8HP and 9.9HP 4-stroke motors with standard gearcase, this engineered kit ensures smooth operation, better control, and enhanced propulsion efficiency.
Compatible Serial Number:
0R Serial Numbers
Key Features:
- Backed by a limited 1-Year warranty, it offers peace of mind for every installation
- Adds a true 5 inches to your motor’s shaft length
- Depending on the model, the spacer comes painted black or sandblasted and unpainted, both ensuring high durability and a clean aesthetic look.
- Includes all essential add-on pieces for a seamless conversion
- Manufactured by Bay Manufacturing, the extension kit is built to last with marine-grade materials, delivering superior corrosion resistance, long-term durability, and OEM-level fitment.
- Compatible with Mercury 8HP and 9.9HP 4-Stroke models with standard gearcase
SHIPPING: Additional shipping fees to Alaska, Hawaii, US Territories, or International Shipping will be calculated after checkout. You will receive an email and a PayPal money request for the additional shipping charges at the email address provided. (Some items are excluded from international shipping)
If you have any questions, please contact us through e-mail at customerservice@marinepartswarehouse.com. Please provide your engine model number to help confirm compatibility.
These items are not eligible for return for any reason other than a warranty claim.
