816607 Mercury MerCruiser Bellows Sleeve | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver U-Joint Bellows Sleeve - Part Number: 816607

A genuine Quicksilver bellows sleeve used with the MerCruiser Alpha One Gen II U-joint bellows assembly. This sleeve helps retain and secure the bellows at the bell housing / gimbal housing connection, supporting a reliable water seal around the driveshaft and universal joint area.

⚙️ Key Features

• Genuine Quicksilver OEM bellows sleeve

• Correct Mercury part number 816607

• Used with Alpha One Gen II U-joint bellows assembly 816431A1

• Helps secure the bellows into the bell housing connection

• Important service component during Alpha Gen II bellows replacement

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 816607 current OEM service reference

OEM / Related Numbers:

• 816607

• 816607 Bellows Sleeve

• 816431A1 related U-joint bellows assembly

• 91-818162 related installation tool

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• MerCruiser Alpha One Gen II U-joint bellows sleeve applications

Typically suits:

• Drive models:

• MerCruiser Alpha One Gen II sterndrive - serial 0D469859 and up

• MerCruiser Alpha One Gen II transom assembly - 1991 and newer

• MerCruiser Alpha One Gen II bell housing assemblies using bellows sleeve 816607

• MerCruiser Alpha One Gen II U-joint bellows assembly 816431A1 applications

• MerCruiser Alpha One Gen II 3.0L, 4.3L, 5.0L and 5.7L drive packages where the Gen II U-joint bellows sleeve design is used

• Drive Type: MerCruiser Alpha One Gen II

• Year Range: 1991 and newer

• System Type: U-joint bellows sleeve / transom sealing hardware

🔌 Function

The bellows sleeve helps lock and retain the U-joint bellows in position, supporting a watertight seal around the driveshaft cavity.

Common signs of failure:

• Bellows will not seat or retain correctly

• Water leakage into the U-joint bellows cavity

• Sleeve cracked, distorted or missing during bellows service

• Bellows pulls loose from the bell housing

• Gimbal bearing water damage after bellows service

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging