5811045 Exhaust Manifold Gasket for Polaris Octane 800 2002-2004

Exhaust Manifold Gasket for Polaris Octane 800

This exhaust manifold gasket seals the joint between the exhaust manifold and the engine on Polaris Octane 800 watercraft and cross-references OEM part 5811045 for a precise fit.

Overview

This exhaust manifold gasket is a direct-fit sealing component for the Polaris Octane 800, designed to sit between the manifold and cylinder to stop exhaust leaks at the mating surface. Built to match the OEM 5811045 footprint, this exhaust manifold gasket helps maintain proper backpressure and keeps hot gases contained where they belong. It is intended for riders and mechanics servicing 2002 through 2004 Octane 800 machines.

Built For Performance

• Cross-references OEM part 5811045 for a direct-fit replacement
• Designed to seal the manifold-to-engine joint and prevent exhaust leaks
• Withstands the high temperatures of two-stroke exhaust gases
• Helps maintain correct exhaust backpressure for consistent engine output
• Fits the 2002 through 2004 Polaris Octane 800 model run

Fits These Machines

• for Polaris Octane 800, 2002
• for Polaris Octane 800, 2003
• for Polaris Octane 800, 2004

On-The-Job Use

• Replacing a blown or leaking manifold gasket during top-end service
• Sealing the exhaust joint after manifold removal or replacement
• Routine engine refresh on 2002 through 2004 Octane 800 watercraft
• Leak repair when exhaust noise or power loss points to the manifold joint

Specs At A Glance

Good To Know

Q: Is this an original Polaris part? A: This is an aftermarket exhaust manifold gasket that cross-references OEM 5811045, and it is not an original Polaris product. Confirm fitment against your machine before ordering.

Q: Should the gasket be replaced every time the manifold comes off? A: Yes, exhaust manifold gaskets are single-use crush seals and reusing one risks leaks. Install a fresh gasket any time the manifold is removed.

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