Description

This is a 400cc to 500cc conversion kit.

When hours and trail use start to show up as compression loss, weak oil pressure, or timing chain slack in a Ranger 400 engine, addressing individual failures seldom stops the cycle. Instead, this master engine rebuild kit lets you replace the major internal components at once, helping restore sealing, wear surfaces, and timing integrity together. In addition, replacing these parts as a group reduces the risk of repeat teardowns down the road. All components are backed by a 1-year REV6 parts warranty.

Replaces the Following OEM Part #s: 3087221, 3087224, 308996, 3086811, 3086200, 3085074, 3085371, 3085075, 3085655, 3087170, 3085534, 3084890, 3089256, 3090293.

THIS KIT INCLUDES

• STD cylinder
• 90 degree coolant pipe elbow
• Piston kit
• Crankshaft with pressed bearings
• Camshaft
• Intake/exhaust rocker arms
• Intake/exhaust valves
• Complete gasket kit
• Water pump rebuild kit
• Timing chain
• Upgraded tensioner/gasket

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Polaris Ranger 400 Engine Rebuild Kit 2010–2014

LEARN MORE & GET SUPPORT

Before starting your rebuild, review our warranty details. For steps and tips, browse the REV6 blog. For quick answers, visit our FAQ page, or contact us if you need personalized support.

FITMENT

Polaris Ranger 400
2010–2014

TAKE ACTION

Add this master engine rebuild kit to your cart and take advantage of REV6’s nationwide shipping to get the internal parts your Ranger 400 needs for a dependable overhaul.

We proudly support our veterans with dedicated discounts.