This SEI Marine Short Yoke Shaft is a direct aftermarket replacement for MerCruiser I, R, MR, Alpha One, and Alpha One Gen II Sterndrives manufactured between 1972 and 1997.
Designed for applications with serial numbers OK999999 and below, this precision-machined shaft ensures proper alignment and secure coupling between the engine and drive unit.
Built to exact OEM specifications, this SEI replacement yoke provides superior strength, corrosion resistance, and smooth operation. Covered by SEI Marine’s 3-Year Fault-Free Warranty.
Product Features
- Direct OEM Replacement: Replaces MerCruiser OE# 46020 1
- Fitment: MerCruiser I, R, MR, Alpha One, and Alpha One Gen II Sterndrives (1972–1997)
- Serial Compatibility: Fits units with serial numbers OK999999 and below
- Design: Short engine yoke shaft
- Condition: 100% brand-new SEI Marine replacement part
- Warranty: 3-Year Fault-Free Warranty provided by SEI Marine
Additional Information
Note: This yoke is designed for earlier MerCruiser sterndrive applications and will not fit units above serial number OK999999.
All parts required for complete sterndrive rebuilds are available upon request.
If you need additional components, 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.
