Description

Complete Bottom End Rebuild Kit for Polaris Sportsman 570 (2017–2023)

When the lower half of your engine needs more than a simple refresh, this Polaris Sportsman 570 complete bottom end rebuild kit provides the major components required to restore the rotating assembly and sealing surfaces.

This kit is designed for bottom-end engine rebuilds where components such as the crankshaft, bearings, chains, and seals need replacement. By replacing these critical parts together, you help restore proper engine timing, oil control, and internal reliability.

What’s Included in This Bottom End Rebuild Kit

• Crankshaft
• Ball bearings
• Timing chain
• Oil pump chain
• Oil seal set
• Complete gasket kit

When Is a Complete Bottom End Rebuild Needed?

Bottom-end wear can develop from high hours, oil contamination, or internal component fatigue. Replacing the crankshaft, bearings, chains, and sealing components during service helps restore proper tolerances and prevent premature engine failure.

This rebuild kit is assembled with quality components and is backed by our 1-year parts warranty.

Installation Support

During any bottom-end rebuild, it is important to verify bearing clearances, chain condition, and torque specifications during assembly. For additional technical resources and service guidance, visit our Help Center.

Related Engine Service Options

If your engine only needs sealing components and timing parts, you may also consider our Polaris Sportsman 570 Bottom End Refresh Kit.

Order with Confidence

Rebuild your Sportsman 570 bottom end with components designed to restore proper engine operation. If you have questions about fitment or installation, contact our team. Otherwise, order your bottom-end rebuild kit today.