U Joint Bellows w/ Sleeve for MerCruiser - 816431A1, 89180 , 18-2747, 89180

U Joint Bellows w/ Sleeve for MerCruiser

This U Joint Bellows w/ Sleeve is a direct replacement for MerCruiser stern drives and provides a watertight seal to protect the universal joint assembly from water intrusion. OEM cross-reference numbers include 816431A1, 89180, and 18-2747.

Overview

This U Joint Bellows w/ Sleeve for MerCruiser is designed to fit MerCruiser stern drive models. It prevents water and debris from entering the bellows assembly, ensuring long-lasting performance of the u-joint. Ideal for boat owners performing routine maintenance on their MerCruiser outdrive, this bellows kit includes the sleeve for a secure fit.

Built For Performance

• Constructed from high-quality EPDM rubber for flexibility and durability
• Includes integrated sleeve for easy installation and proper alignment
• Precision molded to match OEM specifications for a perfect fit
• Resists ozone, oil, and saltwater exposure for extended service life
• Meets or exceeds OEM standards for reliability
• Direct bolt-on replacement, no modifications required

On-The-Job Use

• Commonly used on boats equipped with MerCruiser stern drive systems
• Installed during outdrive bellows replacement services
• Helps maintain watertight integrity of the drive shaft housing
• Essential for preventing water damage to universal joints and gimbal bearings

Specs At A Glance

Good To Know

Q: Is this bellows compatible with all MerCruiser outdrive models? A: This U Joint Bellows w/ Sleeve is designed for MerCruiser stern drives, but fit may vary by serial number; always confirm compatibility before ordering.

Q: How often should the bellows be replaced? A: It is recommended to inspect bellows annually and replace every 3-5 years or if cracks, tears, or damage are found during routine maintenance.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.