Lower Exhaust Hose Bellow for OMC Cobra & Volvo Penta 3852742, 18-2781, 9-72801

Lower Exhaust Hose Bellow for OMC Cobra and Volvo Penta

This lower exhaust hose bellow replaces worn or damaged bellows on marine stern drives, featuring OEM cross-reference numbers 3852742, 18-2781, and 9-72801 for exact fitment on select OMC Cobra and Volvo Penta models.

Overview

The lower exhaust hose bellow is a direct replacement component designed to seal the exhaust connection between the engine and outdrive on OMC Cobra and Volvo Penta stern drives. It prevents water intrusion and exhaust leaks, ensuring reliable performance on the water. This bellow is constructed from durable rubber to withstand marine conditions.

Built For Performance

• Reinforced rubber construction resists cracking and ozone damage
• Corrugated design allows flexibility during drive movement
• OEM-specified dimensions for a tight, leak-free seal
• Includes necessary clamps for installation (verify with original)

Fits These Machines

• for OMC Cobra stern drives
• for Volvo Penta stern drives

On-The-Job Use

• Replacing deteriorated exhaust bellows on inboard/outboard boats
• Annual maintenance of stern drive exhaust systems
• Restoring seal integrity during outdrive removal and reinstallation

Specs At A Glance

Good To Know

Q: How often should the exhaust bellow be replaced? A: Inspect annually during outdrive service; replace if cracks, hardening, or leaks are visible, typically every 3-5 years.

Q: Can this bellow be used on both OMC Cobra and Volvo Penta? A: Yes, this part is designed to fit both brands when specified models match the cross-reference numbers; always verify with your serial number.

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