Can-Am Maverick X3 1000 Master Top End Rebuild Kit (2017-2023)

$821.63

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Restore top-end performance with new piston kits, valves, gaskets, and sealing components. Includes a 1-year warranty, with financing available. Ships nationwide. Add to cart.

Available on backorder

Description

Master Top End Rebuild Kit for Can-Am Maverick X3 1000

The Can-Am Maverick X3 Master Top End Rebuild Kit is designed for 2017-2023 engines that require new pistons and valve train components while retaining a serviceable bottom end. By combining piston kits, intake valves, exhaust valves, gaskets, seals, and valve guide seals into one package, this kit helps simplify a complete top-end rebuild.

Begin by inspecting the cylinder heads, cylinders, and pistons during teardown. Next, install the new piston kits before rebuilding the cylinder heads with fresh intake and exhaust valves, valve guide seals, and sealing components. Finally, replace the remaining gaskets and camshaft seals before verifying timing marks and completing final assembly.

Before You Begin Your Rebuild

Inspect the Bottom End First

Before ordering, verify that the crankshaft, connecting rods, and bearings remain within manufacturer specifications. If the lower end also requires replacement parts, a complete engine rebuild kit may be the better repair option.

What This Kit Includes

Piston Components

  • (3) Piston Kits – REPLACES OEM#: 420893970

Cylinder Head & Valve Train Components

  • (6) Intake Valves – REPLACES OEM#: 420855133
  • (6) Exhaust Valves – REPLACES OEM#: 420855146
  • (12) Valve Guide Seals – REPLACES OEM#: 420431761

Gaskets & Sealing Components

  • (1) Cam V Ring – REPLACES OEM#: 420630127
  • (6) Cam Housing Rings – REPLACES OEM#: 420431760
  • (1) Exhaust Gasket – REPLACES OEM#: 420431850
  • (1) Head Gasket – REPLACES OEM#: 420431816
  • (1) Cam Tensioner Gasket – REPLACES OEM#: 420430623

Common Signs You May Need a Top End Rebuild

  • Low engine compression
  • Damaged or worn pistons
  • Burnt or leaking valves
  • Excessive oil consumption
  • Cylinder head removed for major repairs

Fitment

2017-2023 Can-Am Maverick X3 1000

This Master Top End Rebuild Kit fits 2017-2023 Can-Am Maverick X3 1000 models. Confirm your model and inspect reusable lower-end components before ordering.

Helpful Resources for Your X3 Build

Plan Your Engine Rebuild

Before beginning your project, review our Can-Am Maverick X3 Engine Rebuild Guide for inspection tips, rebuild planning, and common engine wear points.

Compare X3 Rebuild Kits

If you’re deciding between a top-end rebuild and a complete engine rebuild, our Can-Am X3 Engine Rebuild Kit Guide explains the differences between the available rebuild kit levels.

Looking for More Performance?

After completing your rebuild, supported models can benefit from the Can-Am ECU / ECM Tune Kit for improved throttle response and additional horsepower.

Warranty, Financing & Support

REV6 Parts Warranty

This Master Top End Rebuild Kit is backed by the REV6 1-year parts warranty.

Financing Available

Qualified buyers can explore REV6 financing options for larger rebuild projects.

Need Help Choosing the Right Kit?

If you have questions about fitment or determining whether your engine needs a top-end or complete rebuild, contact the REV6 team. We’ll help you choose the rebuild kit that best matches your engine.