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![](https://cdn1.polaris.com/globalassets/snow/2025/root/engines/prostar-s4/01-hero/sno-my25-4e5a-engines-model-detail-prostar-s4-hero-xxs.jpg?v=c3c55478)
4-Stroke Engine Benefits
With the ProStar S4, enjoy all of the benefits of a 4-stroke engine including ease of maintenance and extended range.
![](https://cdn1.polaris.com/globalassets/snow/2023/engines/prostar-s4/2-features-01/prostar-s4-features-section-01-01-xxs.jpg?v=bf0c401f)
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Durable & Easy to Own
ProStar S4 was engineered to provide riders the easiest ownership experience with great fuel efficiency, long service intervals, and the rock-solid dependability all ProStar engines are known for.
![](https://cdn1.polaris.com/globalassets/snow/2024-dt/root/engines-implementation/02-landing-pages/01-complex/05-patriot-boost/03-features-section-02/update-nov-2023/polaris-sno-engines-model-detail-prostar-s4-features-section-02-01-xxs.png?v=be1f160c)
![](https://cdn1.polaris.com/globalassets/snow/2024-dt/root/engines-implementation/02-landing-pages/01-complex/05-patriot-boost/03-features-section-02/update-nov-2023/polaris-sno-engines-model-detail-prostar-s4-features-section-02-01-xxs.png?v=be1f160c)
Fun & Spirited Performance
The ProStar S4 is engineered in the under 100 horsepower class to deliver a fun and approachable riding experience for both new riders or experienced riders who prefer to cruise the trails at their own pace.
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Featured Models
2025 INDY Adventure
Trail Performance and Adventure You Can Share
Starting at
$20,839
CA