Description

Master Top End Rebuild Kit for 2017–2024 Polaris RZR 900

This Polaris 2017–2024 RZR 900 Master Top End Rebuild Kit refreshes the full upper engine assembly. When compression drops or valves begin to leak, power suffers. As a result, replacing these matched components restores sealing and output.

What This Master Kit Includes

• New cylinder
• Top end gasket set
• (2) Moly upgraded pistons
• (4) Intake valves
• (4) Exhaust valves

Why Choose the Master Version?

First, this kit includes both intake and exhaust valves, which separates it from standard top-end kits. Next, the new cylinder and moly pistons restore compression and reduce blow-by. In addition, the included gasket set ensures proper sealing during assembly.

However, this kit does not include crankshaft or lower-end parts. Therefore, if your bottom end shows wear, you may need a complete engine rebuild instead. To compare options, you can browse our 2017–2024 RZR 900 parts category.

Built for Full Upper-End Service

This Master Top End Rebuild Kit covers the cylinder, pistons, and valves together. Because of that, you can complete a full upper rebuild without sourcing separate head components. In other words, it simplifies the job and keeps parts matched.

Warranty & Support

This kit includes our 1-year parts warranty. In addition, you can review coverage on our warranty policy. For rebuild guidance, visit our engine rebuild blog. If questions come up, then check the FAQ page or contact our team directly.

Fitment

Polaris RZR 900
2017–2024 Models

Take Action

Restore compression and valve sealing in your Polaris RZR 900. Order today and get nationwide shipping.

Veterans and active servicemembers qualify for available discounts. Thank you for your service.