Engine Kits & Rotating Assemblies Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

Namura Technologies Top-End Repair Kits for 1992-2003 KX250 - NX-20025-BK

Repair Kit, Top End, 66.360mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025-BK

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 2006-2008 KX250F - NX-20031K

Repair Kit, Top End, 76.950mm Bore, 13.50 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20031K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 1986 SRX600, 1984-1986 XT600, 1998-2001 YFM600FW GRIZZLY 4X4 - NA-40007-4K

TOP END REPAIR KIT

Part Number: NTI-NA-40007-4K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NA-40007K

TOP END REPAIR KIT

Part Number: NTI-NA-40007K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 1990-1993 TRAIL BOSS 350L 4X4, TRAIL BOSS 350L 2X4, 1993 BIG BOSS 350L 6X6 - NA-50001K

TOP END REPAIR KIT

Part Number: NTI-NA-50001K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NX-10026-BK

TOP END REPAIR KIT

Part Number: NTI-NX-10026-BK

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 2003-2005 RM250 - NX-30027K

Repair Kit, Top End, 66.34mm Bore, 8.70 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30027K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NX-40026-BK

TOP END REPAIR KIT

Part Number: NTI-NX-40026-BK

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NX-40026-BKA

TOP END REPAIR KIT

Part Number: NTI-NX-40026-BKA

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NX-40026-CK

TOP END REPAIR KIT

Part Number: NTI-NX-40026-CK

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Piston and Ring Kits 185-70293

TOP END GASKET KIT, TOP END REPAIR KIT

Part Number: NTI-NX-70029K3

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NX-70036K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-70036K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NX-70051K

TOP END REPAIR KIT

Part Number: NTI-NX-70051K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Piston and Ring Kits 185-7029B3

TOP END GASKET KIT, TOP END REPAIR KIT

Part Number: NTI-NX-70029-BK3

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Powersports Top End Engine Kits NA-20005K

Cylinder Head NAMURA TOP END REPAIR KIT NAMURA TOP END REPAIR KIT

Part Number: NTI-NA-20005K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Technologies Top-End Repair Kits NA-30002-16K

TOP END REPAIR KIT

Part Number: NTI-NA-30002-16K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Namura Technologies Top-End Repair Kits NA-20000-2K

Repair Kit, Top End, 76.45mm Bore, 8.20 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20000-2K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Mopar Replacement - Engine Rotating Kits for 2007-2009 CALIBER - 05191334AA

PISTON, A-SIZE, 2006-2010

Part Number: MOP-05191334AA

Not Yet Reviewed

Estimated Ship Date: Oct 21, 2025 if ordered today

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Estimated Ship Date: Oct 21, 2025 if ordered today

Mopar Replacement - Engine Rotating Kits for 2007-2012 CALIBER, 2007-2017 COMPASS, 2010-2017 PATRIOT - 05191337AA

PISTON, A-SIZE, 2006-2017

Part Number: MOP-05191337AA

Not Yet Reviewed

Estimated Ship Date: Oct 21, 2025 if ordered today

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Estimated Ship Date: Oct 21, 2025 if ordered today

Namura Technologies Top-End Repair Kits NA-40011K

Repair Kit, Top End, 84.450mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011K

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 2004-2013 YFZ450, 2006-2007 YFZ450 BILL BALANCE EDITION, 2007-2008 YFZ450 SE - NA-40009-BK

Repair Kit, Top End, 94.960mm Bore, 11.40 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40009-BK

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 2004-2007 TRX400FA FOURTRAX RANCHER AT, TRX400FGA FOURTRAX RANCHER AT GPSCAPE - NA-10040K

Repair Kit, Top End, 84.97mm Bore, for use on Honda®, Kit

Part Number: NTI-NA-10040K

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Namura Technologies Top-End Repair Kits NA-10042-2K

Repair Kit, Top End, 86.98mm Bore, 9.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10042-2K

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Namura Powersports Top End Engine Kits NA-10043-3K

TOP END REPAIR KIT

Part Number: NTI-NA-10043-3K

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Namura Technologies Top-End Repair Kits NA-10043K

Repair Kit, Top End, 86.48mm Bore, 9.90 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10043K

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today