Mercruiser Alpha One Gen II Transom Seal Kit | Sierra 18-8218
Mercruiser Alpha One Gen II Transom Seal Kit | Sierra 18-8218
Sierra
18 in stock
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Mercruiser Alpha One Gen II Transom Seal Kit | Sierra 18-8218
Mercruiser Alpha One Gen II Transom Seal Kit | Sierra 18-8218
Convenient Transom Seal Kit includes everything needed to remove & reinstall a Mercruiser Alpha 1 Gen II stern drive from the transom.
- Sierra Alpha One Gen II transom service kit
- For Mercruiser Alpha One Generation II stern drives from serial number 0D468859 and up (1991 and up)
- Contains exhaust bellows, u-joint bellows with retainer, shift cable bellows, water hose, clamps, sealed gimbal bearing, and gasket mounting kit
- Includes sealed gimbal bearing
- Will retrofit older Gen II drives with greasable gimbal bearing to the new sealed gimbal bearing
- Replaces Mercury 30-803099T1
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.