Description

Restore Compression and Top-End Performance

If your Polaris XPEDITION has lost compression, developed valve train wear, or suffered cylinder damage, this Master Top End Rebuild Kit provides the major components needed to restore engine performance without replacing the entire rotating assembly. Designed for 2024-2026 Polaris XPEDITION NorthStar ADV and XP models, this kit combines the critical top-end components into one convenient package.

Replacing the cylinder, piston, valves, and top-end sealing components during one rebuild helps improve reliability while reducing the time spent sourcing individual replacement parts.

What This Kit Includes

• Exhaust Valves
• Intake Valves
• Cylinder
• Standard Piston Kits
• Top End Gasket Set

Why Choose the Master Top End Rebuild Kit?

This is the most complete top-end kit available for the Polaris XPEDITION ProStar 1000 engine. It is an excellent choice when your crankshaft and lower end remain in good condition, but your cylinder, piston, and valves require replacement. Installing matched components together helps restore compression, improve valve sealing, and support long-term engine reliability.

• New replacement cylinder.
• Standard bore piston kit.
• New intake and exhaust valves.
• Complete top-end gasket coverage.
• Designed for complete top-end engine repairs.

Before You Order

This Master Top End Rebuild Kit fits 2024-2026 Polaris XPEDITION NorthStar models equipped with the factory HVAC system.

Compatible models include:

• 2024-2026 Polaris XPEDITION NorthStar ADV
• 2024-2026 Polaris XPEDITION NorthStar ADV5
• 2024-2026 Polaris XPEDITION NorthStar XP
• 2024-2026 Polaris XPEDITION NorthStar XP5

If you’re unsure which XPEDITION model you own or need help confirming compatibility, Contact REV6 before ordering and we’ll help you select the correct parts.

Continue Your XPEDITION Engine Build

If your rebuild also requires crankshaft and bottom-end components, upgrade to the XPEDITION Engine Rebuild Kit.

If your engine also needs a new crankshaft and cylinder, compare the XPEDITION Complete Engine Rebuild Kit.

Need the highest level of engine coverage? Choose the XPEDITION Master Engine Rebuild Kit, which includes top-end and bottom-end components for a complete overhaul.

You can also browse the complete Polaris XPEDITION Parts Catalog for additional ProStar 1000 engine components.

Why Buy from REV6?

REV6 has more than 35 years of experience supplying premium powersports engine components. Every rebuild kit includes a 1-year warranty and ships nationwide from our Utah facility. Review our Warranty Policy, explore REV6 Financing, or Contact REV6 if you have questions before placing your order.