Mercruiser GKN U-Joint | Sierra 18-6406
Mercruiser GKN U-Joint | Sierra 18-6406
Sierra
26 in stock
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Mercruiser GKN U-Joint | Sierra 18-6406
Replacement U-joint with external style clips for various Mercruiser Alpha I Gen II & Bravo stern drives.
- Sierra replacement U-joint
- GKN new style with external retaining clips
- Fits Mercruiser Alpha I Gen II model stern drives from serial number 0L949779 and up and Mercrusier Bravo model stern drives from serial number 0M111208 and up
- For Mercruiser Vazer
- Replaces Mercruiser 865496A01, 865493A01, 865496A02
! 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.