This SEI Marine Complete Gear Set is a direct aftermarket replacement for Yamaha V6 3.1L / 3.2L 2-Stroke outboards rated 225–250 HP from 1990 to present.
Designed for standard-rotation 76-degree V6 engines, it features a 1.81:1 gear ratio and 16/29 tooth count, delivering optimal power transfer and quiet, smooth performance.
Manufactured to precise OEM specifications, this SEI gear set ensures reliable fitment, strength, and long-lasting performance for Yamaha high-output V6 2-Stroke models.
Product Features
- Direct OEM Replacement: Replaces Yamaha OE# 61A-45551-03-00, 61A-45560-03-00, and 61A-45571-00-00
- Fitment: Yamaha V6 3.1L / 3.2L 2-Stroke Outboards (1990–Present)
- Engine Compatibility: 225 & 250 HP models, 76-degree V6 design
- Gear Ratio: 1.81:1
- Tooth Count: 16/29
- Rotation: Standard (Right-Hand)
- Condition: 100% brand-new SEI Marine replacement gear set
- Warranty: 3-Year Fault-Free Warranty provided by SEI Marine
Additional Information
Note: All parts required for a complete lower unit rebuild are available upon request, even if not listed online.
If you need additional components for your rebuild, please email or fill out the contact form and we will assist you in locating everything needed.
Shipping Information
SHIPPING: Additional shipping fees to Alaska, Hawaii, U.S. Territories, or international destinations 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.)
Customer Support
For questions or to confirm compatibility, please email customerservice@marinepartswarehouse.com .
Please include your engine model number to help confirm proper fitment before ordering.
