FREE SHIPPING
Free shipping on every order — no minimum purchase required.DESCRIPTION
Mercury Mariner 9539A5 Outboard Lower Unit Gear Case for 20" long shaft motors rated 35–45 HP. This complete gear case assembly includes all internal gearing and bearing components ready for installation.
Key specs:
- Fits Mercury Mariner 35–45 HP outboards
- 20" long shaft configuration
- OEM-equivalent quality construction
- Direct replacement for worn or damaged gear cases
Restore full power transfer and smooth shifting with a factory-spec lower unit that eliminates performance issues caused by damaged gearing or corrosion.
SHIPPING & RETURNS
SHIPPING
- Free Shipping on all orders — no minimum purchase required.
- Orders are dispatched within 24 hours of purchase (business days).
- Estimated delivery: 2–5 business days within the contiguous United States.
- Tracking information emailed as soon as your order ships.
RETURNS
- Exchanges accepted — we want you to be completely satisfied.
- If a part does not fit or is not as described, contact us within 7 days for an exchange.
- Items must be in original, unused condition and in original packaging.
WARRANTY
- 1-Year extended warranty available at additional cost — ask us for details.
FITMENT & COMPATIBILITY
Please verify that this part is compatible with your vehicle's year, make, model, and trim level before ordering. Part numbers and fitment details are listed in the product description. If you have any questions about compatibility, our team is happy to help — contact us by phone or email before purchasing.
Phone: (803) 723-7074
Email: sales@findmypart.shop
Hours: Mon–Fri, 9am–5pm EST
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