SPI Crankshaft Oil Seals for Polaris 900 Fusion, RMK & SwitchBack fits 2005-2006

Crankshaft Oil Seals for for Polaris

These crankshaft oil seals for for Polaris provide a reliable barrier against oil leakage and crankcase pressure loss in Fusion, RMK, and SwitchBack snowmobile engines. These crankshaft oil seals for for Polaris are vital for maintaining the internal atmospheric integrity of the two-stroke system.

Overview

The crankshaft oil seals for for Polaris are precision-manufactured components that safeguard the crankshaft assembly against contaminants. These crankshaft oil seals for for Polaris are used by snowmobile technicians to prevent the lean running conditions caused by air leaks. They are built to withstand the extreme cold and high RPM environments common in snowmobile usage.

Built For Performance

• Engineered for high speed rotational durability
• Resistant to fuel and synthetic oil degradation
• Flexible sealing lips for tight shaft engagement
• Optimized for extreme winter temperature ranges
• Durable outer casing for secure press-fit installation

Fits These Machines

• for Polaris 900 Fusion 2005-2006
• for Polaris 900 RMK 2005-2006
• for Polaris 900 SwitchBack 2005-2006

On-The-Job Use

• Repairing air leaks causing inconsistent engine idling
• Replacing seals during a full crankshaft bearing service
• Preventing oil pump leakage at the crank housing

Specs At A Glance

Good To Know

Q: Does the crankshaft need to be removed for installation? A: Replacing these seals typically requires accessing the ends of the crankshaft, which may involve removing the flywheel or primary clutch.

Q: Why is an air leak dangerous for these engines? A: Air leaks cause a lean air-fuel ratio which can lead to overheating and catastrophic piston failure.

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