6ET-14613-00-00 Exhaust Manifold Gasket for Yamaha 255 FSH Sport H 1800

Exhaust Manifold Gasket for Yamaha

This exhaust manifold gasket seals the manifold-to-engine joint on Yamaha 1800 series marine engines, replacing OEM part 6ET-14613-00-00 to prevent exhaust leaks and maintain proper sealing under high heat.

Overview

This exhaust manifold gasket is a direct replacement sealing component for Yamaha 1800 series marine engines. It seals the exhaust manifold mounting surface, preventing hot exhaust gases from escaping and protecting nearby components from heat damage. A practical choice for boat owners and marine technicians servicing the exhaust manifold gasket on 255 FSH Sport H models.

Built For Performance

• Cross-references OEM part number 6ET-14613-00-00 for easy matching
• Built to handle the elevated temperatures of marine exhaust systems
• Maintains a reliable seal at the manifold mounting surface
• Resists compression and heat cycling over extended service intervals
• Shaped to match the port configuration and bolt pattern of the 1800 series manifold

Fits These Machines

• for Yamaha 255 FSH Sport H 1800 (2024-2026)

On-The-Job Use

• Exhaust manifold replacement or resealing on Yamaha 1800 series boats
• Top-end engine service when the manifold is removed
• Repairing exhaust leaks that create noise or fumes in the engine compartment
• Scheduled maintenance on 255 FSH Sport H models

Specs At A Glance

Good To Know

Q: What causes an exhaust manifold gasket to fail? A: Heat cycling, loose manifold bolts, and age are the usual causes, leading to exhaust leaks and increased engine bay noise. Replacing the gasket restores a proper seal at the manifold joint.

Q: Do I need to torque the manifold bolts after installing a new gasket? A: Yes, manifold bolts should be torqued to the manufacturer specification in the correct sequence. Recheck torque after the first few engine heat cycles to confirm the gasket stays sealed.

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