This SEI Marine Ratcheting Shift Spool is a direct replacement for MerCruiser I, R, MR, Alpha One, and Alpha One Gen II sterndrives manufactured from 1972 to present.
Engineered to precise OEM standards, this ratcheting-style shift spool provides smooth, consistent shifting engagement and reliable gear selection under all operating conditions.
Replaces OEM 818349T1 and is manufactured from durable, corrosion-resistant materials for long-term marine performance.
Each unit is covered by SEI’s 3-Year Fault-Free Warranty, ensuring dependable operation and peace of mind.
Product Features
- Direct OEM Replacement: Replaces MerCruiser OE# 818349T1
- Fitment: MerCruiser I, R, MR, Alpha One, and Alpha One Gen II drives (1972–Present)
- Function: Ratcheting shift spool for smooth gear engagement
- Construction: Corrosion-resistant marine-grade materials
- Condition: 100% brand-new SEI Marine replacement component
- Warranty: 3-Year Fault-Free Warranty provided by SEI Marine
Additional Information
Note: Designed to OEM specifications for precise fitment and operation on both Alpha One and Alpha One Gen II sterndrives.
If you require related components such as shift shafts, detent assemblies, or seals, 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.
