27-18272 For Mercruiser Exhaust Manifold Riser Gasket 3.7L 3.7 470 165 170 190

Exhaust Manifold Riser Gasket for Mercruiser

This exhaust manifold riser gasket, part number 27-18272, seals the joint between the exhaust manifold and riser to prevent coolant and exhaust leaks on Mercruiser engines. It is designed for 3.7L 3.7 engines including models 470, 165, 170, and 190, ensuring a reliable seal under high heat and pressure. This exhaust manifold riser gasket is a direct replacement for the original gasket, restoring proper engine cooling and exhaust flow.

Overview

This exhaust manifold riser gasket for Mercruiser is a high-quality sealing component that prevents exhaust and coolant leaks where the riser mounts to the manifold. It fits Mercruiser 3.7L and 3.7 series engines with models 470, 165, 170, and 190, making it a critical part for maintaining engine performance. The gasket is built to withstand high temperatures and provides a secure, long-lasting seal for marine applications.

Built For Performance

• Precision-cut design for a perfect match to Mercruiser 3.7L manifold and riser surfaces
• High-temperature resistant material withstands exhaust heat and thermal cycling
• Reinforced construction prevents warping and compression set over time
• Corrosion-resistant properties ideal for saltwater and freshwater use
• Direct fit replacement for OEM part number 27-18272

Fits These Machines

• for Mercruiser 470
• for Mercruiser 165
• for Mercruiser 170
• for Mercruiser 190
• for Mercruiser 3.7L and 3.7 series engines

On-The-Job Use

• Replace worn riser gaskets during routine exhaust system maintenance
• Install when overheating or exhaust leaks are detected on Mercruiser inboard engines
• Use in conjunction with manifold and riser service for complete system overhaul

Specs At A Glance

Good To Know

Q: Will this gasket fit my Mercruiser 470 engine? A: Yes, it is specifically designed to fit the Mercruiser 470 and other 3.7L models, but always confirm your serial number to ensure compatibility.

Q: Can I reuse this gasket after removal? A: No, gaskets should always be replaced during service to ensure a proper seal and prevent leaks.

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