This SEI Marine Transom Bellows Repair Kit is designed for Mercruiser Alpha One Gen II sterndrives (1992–Present) and replaces OEM part number 30-803099T1.
This version includes a greasable gimbal bearing.
Important: If your transom assembly does not have a grease passage for the gimbal bearing, this kit will not work for your application. In that case, you must use the sealed bearing kit (SEI 9A-116S).
This complete kit restores proper sealing and alignment between the transom housing and the drive, preventing water intrusion and ensuring smooth driveline operation.
Product Features
- Manufacturer: SEI Marine
- Application: Mercruiser Alpha One Gen II (1992–Present)
- Compatibility: Fits SE116 drives
- OEM Replacement #: 30-803099T1
- Bearing Type: Greasable gimbal bearing (requires greasable transom)
- Alternative Kit: For non-greasable transoms, use SEI Kit 9A-116S
- Includes: Complete bellows repair kit with ridge-style components
- Condition: 100% brand-new SEI Marine replacement kit
- Warranty: 3-Year Fault-Free Warranty
Additional Information
This bellows kit is intended only for Gen II transom assemblies with a gimbal bearing that can be greased through the transom.
If your transom does not provide grease access, the bearing cannot be properly lubricated—use the sealed version (9A-116S) instead.
All additional upper and lower seal components are available upon request.
Shipping Information
SHIPPING: Additional shipping fees to Alaska, Hawaii, U.S. Territories, or international destinations will be calculated after checkout.
A PayPal money request for any additional charges will be sent to the email address provided.
(Some items are excluded from international shipping.)
Customer Support
For compatibility questions, please email customerservice@marinepartswarehouse.com .
Include your engine model number to ensure proper fitment.
