Skip to content Skip to navigation Skip to footer

Engine Choices for Every Rider

The Polaris family of 2-stroke and 4-stroke engines deliver a wide range of options across each sled family so that you can feel confident control wherever and whenever you ride.

NEW Patriot Turbo Boost

Introducing the Patriot 9R

A member of the Factory Mod engine family - the 9R big bore Patriot. Delivering race-mod response and lightweight power as the most powerful naturally aspirated engine Polaris has ever built. 

Explore All Engine Options

Patriot 9R

Patriot 9R

The newest member of the Factory Mod engine family - the 9R big bore Patriot.

ProStar S4

ProStar S4

Based on the proven Polaris ProStar architecture, the new 4-stroke ProStar S4 delivers reliability, easy ownership, and spirited Polaris performance.

850 Patriot Engine

Patriot Boost

From the very first sketch, the Patriot 850 was designed for the Patriot Boost turbocharger system. Class-leading durability is a hallmark of the Patriot 850, with the Patriot Boost taking it to the next level.

650 Patriot Engine

650 Patriot

The 650 Patriot engine delivers instant throttle response, exceptional efficiency and acceleration. 

850 Patriot Engine

850 Patriot

The 850 Patriot engine was designed from the ground up as the benchmark in performance with class-leading durability and unrivaled acceleration.

600 Cleanfire Engine

600 Cleanfire

The 600 Cleanfire engine is part of the Polaris family of Liberty engines. This engine is a 600cc, liquid-cooled, SDI engine that provides proven reliable performance, instant acceleration, easy starting and great response.

800 Cleanfire Engine

800 Cleanfire

The 800 Cleanfire is part of the Polaris family of Liberty engines built in the USA. This engine was developed in conjunction with the AXYS platform to deliver ultimate responsiveness, performance and quality with class-leading power-to-weight.

550 Fan Engine

550 Liberty

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