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550 Fan-Cooled Engine

Proven, durable, fan-cooled snowmobile engine provides reliable performance at a great value.
550 fan engine

Key Features

550 fan design
550 fan design

Proven, dependable two-stroke engine with NiCaSil-lined cylinders provides trail cruising power in a lightweight package.


All INDY® and Voyageur® models with the Polaris® 550 fan-cooled engine use the CVTech® Powerbloc 50 drive clutch and Invance driven clutch. This clutching delivers smooth engagement, enhanced low-speed drivability, and quieter operation. They have a maintenance-free design and are easy to tune while on the sled.