Polaris RZR Pro R Front Differential (8K, Fortin Pinion Nut) - Used, 1,000 Miles Max, OEM 1337229

Polaris RZR Pro R front differential — the Polaris "8K" differential (PN 1337229) that's standard on 2023-and-newer Pro R models and serves as a direct upgrade for 2022 Pro R models. This specific unit has had the pinion locked with a Fortin proprietary pinion locking nut for reliability.

These are curated low-mileage OEM Polaris take-off parts sourced from Pro R Factory motorsport teams and replaced at short service intervals for reliability. Each part is inspected, documented, and offered as a practical replacement or spare for racers, recreational riders, and customers looking for genuine Polaris components with usable life remaining.

• Condition: Used, 1,000 miles max
• OEM Part Number: 1337229
• Fitment: Polaris RZR Pro R / Pro R Factory where confirmed
• Position: Front
• Notes: Pro R Factory motorsport team take-off; replaced at a preventative service interval for reliability. Polaris 8K differential designation — standard fitment on 2023+ Pro R models, compatible with 2022 Pro R as an upgrade. Fortin proprietary pinion locking nut installed. Verify your model-year and required pinion-nut spec before installation.

Used Part Disclaimer: These parts are sold as-is with the stated mileage. Visible cosmetic wear from service use is normal. Buyer is responsible for verifying suitability and final fitment before installation. Contact sales@doublezeropowersports.com with questions about condition or fitment before ordering.