2007 Engine Kits & Rotating Assemblies Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Namura Technologies Top-End Repair Kits for 2005-2021 YZ125, 2020-2022 YZ125X - NX-40009K

Repair Kit, Top End, 53.950mm Bore, 10.70 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40009K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2002-2022 YZ250, 2022 YZ250 MONSTER ENERGY YAMAHA RACING EDITION, 2017-2022 YZ250X - NX-40025KA

Repair Kit, Top End, 66.350mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025KA

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NX-70000K

TOP END REPAIR KIT

Part Number: NTI-NX-70000K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2000-2008 65 SX, 2008 65 XC - NX-70002-6BK

TOP END REPAIR KIT

Part Number: NTI-NX-70002-6BK

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2000-2008 65 SX, 2008 65 XC - NX-70002-6K

TOP END REPAIR KIT

Part Number: NTI-NX-70002-6K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2003-2012 85 SX (17/14), 2005-2010 85 SX (19/16), 2008-2009 85 XC - NX-70004-BK

TOP END REPAIR KIT

Part Number: NTI-NX-70004-BK

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NX-70004K

Repair Kit, Top End, 46.940mm Bore, 8.20 to 1 Compression Ratio, KTM, Kit

Part Number: NTI-NX-70004K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50004K

Repair Kit, Top End, 91.97mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50080K

Repair Kit, Top End, 79.950mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2004-2025 CRF50F, 2000-2003 XR50R, 1979-1999 Z50R - NX-10051-2K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-10051-2K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2003-2007 CR85R, CR85RB EXPERT - NX-10081K

Repair Kit, Top End, 47.44mm Bore, 8.40 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10081K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-30002-BK

Repair Kit, Top End, 89.97mm Bore, 11.30 to 1 Compression Ratio, Arctic Cat, Kawasaki, Suzuki, Kit

Part Number: NTI-NA-30002-BK

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2002-2014 LT-F250 OZARK, 2004-2009 LT-Z250 QUADSPORT Z - NA-30008-4K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30008-4K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-30010-2K

Repair Kit, Top End, 82.46mm Bore, 9.00 to 1 Compression Ratio, Arctic Cat, Suzuki, Kit

Part Number: NTI-NA-30010-2K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40006K

Repair Kit, Top End, 83.000mm Bore, 8.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40006K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40010K

Repair Kit, Top End, 99.970mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40010K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2004-2012 CRF70F, 1997-2003 XR70R - NX-10070-8K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-10070-8K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1999-2008 TRX400EX SPORTRAX, 2009-2014 TRX400X, 1996-2004 XR400R - NA-10003-2K

Repair Kit, Top End, 85.470mm Bore, 11.00 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10003-2K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1993-2008 TRX300EX SPORTRAX, 2009 TRX300X - NA-10005K

Repair Kit, Top End, 73.95mm Bore, 8.90 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10005K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-10008-4K1

Repair Kit, Top End, 92.96mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10008-4K1

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 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: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2006-2014 TRX450ER ELECTRIC START, TRX450R - NA-10046K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10046K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-20062K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20062K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-20065K

Repair Kit, Top End, 79.96mm Bore, 9.90 to 1 Compression Ratio, Arctic Cat, Kawasaki, Kit

Part Number: NTI-NA-20065K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-20075K

Repair Kit, Top End, 84.96mm Bore, 9.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20075K

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today