POLARIS Engine Kits & Rotating Assemblies Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Cylinder Works Big Bore Cylinder Kits 422-61001K

Cylinder Kit, Forged Piston, 5.00mm Oversize Bore, Polaris, 10.60 to 1 Compression Ratio, Kit

Part Number: CLW-61001-K01

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2006-2007 OUTLAW 500, 2003-2007 PREDATOR 500 - NA-50005K

Repair Kit, Top End, 99.150mm Bore, 10.80 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50005K

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50004-6K

Repair Kit, Top End, 93.47mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-6K

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Namura Technologies Top-End Repair Kits NA-50070-BK1

TOP END REPAIR KIT

Part Number: NTI-NA-50070-BK1

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Cylinder Works Standard Bore Cylinder Kits 422-60002KH2

Top End Engine Kits CYL WORKS STD BORE KIT HI COMP CYL WORKS STD BORE KIT HI COMP 800 SPORSTMAN/RZR/RANGER

Part Number: CLW-60002-K02HC

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Hot Rods Complete Bottom End Rebuild Kits HR00110

BOTTOM END KIT Polaris

Part Number: HRI-HR00110

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Namura Technologies Top-End Repair Kits NA-50080-BK

Repair Kit, Top End, 79.960mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080-BK

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Vertex High-Compression Piston Kits 23833A

VERTEX PISTON KT HC FORGED

Part Number: VPX-23833A

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Vertex Complete Engine Rebuild Kits WR101-185

VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-185

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50019K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50019K

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0224

Rebuild Kit, Complete Bottom End, Polaris, Kit

Part Number: HRI-CBK0224

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

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Estimated Ship Date: Feb 5, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits 422-60004K

CYLINDER, STANDARD BORE KIT POLARIS

Part Number: CLW-60004-K01

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0123