70981A3 Upper Exhaust Bellows For MerCruiser 3 4 18 2762 89070

Product Overview

The Upper Exhaust Bellows is a critical component in your MerCruiser sterndrive's exhaust system. It connects the exhaust riser to the y-pipe, ensuring proper exhaust flow and preventing water intrusion. This high-quality bellows is designed for MerCruiser engines requiring a 3-4 inch exhaust bellows.

Key Features & Performance

• Direct replacement for OEM part numbers 70981A3, 18-2762, 89070
• Made from durable rubber compound resistant to heat and exhaust gases
• Prevents exhaust leaks and water ingestion into the engine
• Flexible design accommodates engine movement and vibration
• Easy to install with basic hand tools

Fitment & Compatibility

• Compatible with MerCruiser sterndrive engines (3.0L, 4.3L, 5.0L, 5.7L, and similar)
• Fits engines requiring a 3-4 inch exhaust bellows
• Replaces OEM units with part numbers 70981A3, 18-2762, 89070

Common Uses

• Replacing worn or cracked upper exhaust bellows on MerCruiser sterndrives
• Annual maintenance and inspection of exhaust system components
• Repairing exhaust leaks under the boat
• Winterization and off-season storage preparation
• Engine replacement or overhaul projects

Technical Specifications

• Part Number(s): 70981A3, 18-2762, 89070
• Material: Rubber
• Application: MerCruiser Sterndrive Exhaust System

Frequently Asked Questions

Q: Will this upper exhaust bellows fit my MerCruiser 5.0L? A: This bellows is designed for MerCruiser sterndrive engines with a 3-4 inch exhaust system, including many 5.0L models. Please verify your existing part number matches 70981A3, 18-2762, or 89070.

Q: Is it necessary to replace both upper and lower bellows at the same time? A: While not required, it is recommended to replace both simultaneously to ensure even wear and prevent future failures.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.