Engines & Components | Summit Racing

Namura Technologies Top-End Repair Kits for 2002-2014 LT-F250 OZARK, 2002 LT-F250 QUADRUNNER, 2004-2009 LT-Z250 QUADSPORT Z - NA-30008-6K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30008-6K

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Namura Technologies Top-End Repair Kits NX-70007-BK

TOP END REPAIR KIT

Part Number: NTI-NX-70007-BK

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Namura Technologies Top-End Repair Kits NX-70005-CK

TOP END REPAIR KIT

Part Number: NTI-NX-70005-CK

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits NX-70005-BK

TOP END REPAIR KIT

Part Number: NTI-NX-70005-BK

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40005K

Repair Kit, Top End, 82.950mm Bore, 9.50 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40005K

Not Yet Reviewed

Estimated Ship Date: Today

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Namura Technologies Top-End Repair Kits NA-20040-4K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040-4K

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2008-2019 OUTLAW 50, 2007 PREDATOR 50, 2017-2025 YFZ50 - NA-50015-2K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50015-2K

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-20040K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040K

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2003-2006 KFX50 - NA-30050-2K1

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-30050-2K1

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2004-2016 CRF50F, 2000-2003 XR50R, 1979-1999 Z50R - NX-10051K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-10051K

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1998-2000 KX80 - NX-20080K1

TOP END REPAIR KIT

Part Number: NTI-NX-20080K1

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50000-6K

Repair Kit, Top End, 73.46mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-6K

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50000-4K

Repair Kit, Top End, 72.96mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-4K

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2003-2019 CRF230F, 2008-2009 CRF230L, 2009 CRF230M - NX-10230-2K

TOP END KIT 66/+0.50 HON

Part Number: NTI-NX-10230-2K

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2018-2026 YZ65 - NX-40097-BK

TOP END KIT 43.45/+0.01 11:1 YAM

Part Number: NTI-NX-40097-BK

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Quadboss Powersports Top End Engine Kits 563963

QB FULL TOP END SET

Part Number: QDB-56-3963

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Quadboss - Powersports Top End Engine Kits for 2006-2014 TRX450ER ELECTRIC START, 2006-2009 TRX450R - 563978

QB FULL TOP END SET

Part Number: QDB-56-3978

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Quadboss - Powersports Top End Engine Kits for 1987-2006 YFZ350 BANSHEE - 563913

QB FULL TOP END SET

Part Number: QDB-56-3913

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Quadboss - Powersports Top End Engine Kits for 2000-2006 TRX350TM FOURTRAX RANCHER - 563959

QB FULL TOP END SET

Part Number: QDB-56-3959

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Pro-X Racing Parts Powersports Top End Engine Kits 35.5828

ProX Top Set AC M/XF/ZR 8000 '18-20

Part Number: PXR-35-5828

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Pro-X Racing Parts Powersports Top End Engine Kits 35.5819

ProX TopSet Polaris 850 Patriot '19+

Part Number: PXR-35-5819

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Trick Flow® Chromoly Pushrods TFS-21417850-8

Trick Flow® Chromoly Pushrods TFS-21417850-8

Pushrods, Chromoly, 3/8 in. Diameter, 7.850 in. Length, Ball Ends, Hardened, One Piece, Set of 8

Part Number: TFS-21417850-8

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Howards Cams Performance Series C1010 Pushrods 95198

Pushrod, Series C1010, Steel, 5/16 in. Diameter, Ball/Ball Ends, 6.804 in. Length, Set of 16

Part Number: HRS-95198

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

PRW Rocker Arm Adjuster Screws 9531807

ADJUSTER SCREW KIT, VALVE LASH, MOPAR/CHRYSLER 273-440, Set of 16, 4135 Cup End

Part Number: PQX-9531807

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

PRW Rocker Arm Adjuster Screws 9531808

ADJUSTER SCREW KIT, VALVE LASH, 7/16"-20 x 1.420" OAL, MOPAR 273-440, 5/16" Ball End, Set of 16

Part Number: PQX-9531808

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

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