Engine Rotating Assemblies & Rebuild Kits

Cylinder Works Big Bore Cylinder Kits for 2007-2009 CRF150R, CRF150R EXPERT - 422-11004K

BIG BORE KIT

Part Number: CLW-11004-K01

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Eagle Competition Rotating Assemblies 14140030

ROTATING ASSEMBLY UNBALANCED

Part Number: ESP-14140030

Not Yet Reviewed

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Hot Rods Complete Bottom End Rebuild Kits CBK0106

Rebuild Kit, Complete Bottom End, for use on Honda®, TRX450R, TRX450ER, Kit

Part Number: HRI-CBK0106

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2004-2013 YFZ450, 2006-2007 YFZ450 BILL BALANCE EDITION, 2007-2008 YFZ450 SE - 422-20001K

Cylinder Kit, Forged Aluminum, Standard Bore, Yamaha, Set

Part Number: CLW-20001-K01

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Summit Racing™ Pro LS 5.7L Rotating Assemblies SUM-R24368983

Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 24X, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit ring, H Bearings

Part Number: SUM-R24368983

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Namura Technologies Top-End Repair Kits for 1991-2001 RM80 - NX-30080-CK

TOP END REPAIR KIT

Part Number: NTI-NX-30080-CK

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Scat Engine Rotating Assemblies 1-94412BE-040

Engine Rotating Kit, Cast Crank, Forged Pistons, I-Beam Rods, Ford, Cleveland, Kit

Part Number: SCA-194412BE040

Not Yet Reviewed

Estimated Ship Date: Today

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Vertex Replica Piston Kits 24265B

VERTEX PISTON KIT-FORGED

Part Number: VPX-24265B

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Summit Racing™ Pro LS 6.2L Rotating Assemblies SUM-R5836L0652

Pro LS 4340 Rotating Assembly, 376 Cid., 4.065 bore, 3.622 stroke, 58x, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L0652

Not Yet Reviewed

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Namura Technologies Top-End Repair Kits NA-50000K

Repair Kit, Top End, 71.96mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000K

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1988-1990 KX80 - NX-20080K2

TOP END REPAIR KIT

Part Number: NTI-NX-20080K2

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Quadboss Powersports Top End Engine Kits 563978

QB FULL TOP END SET

Part Number: QDB-56-3978

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 1999-2000 YZ250 - CBK0078

BOTTOM END KIT Yamaha

Part Number: HRI-CBK0078

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1985-2003 KX60 - NX-20060-CK

TOP END REPAIR KIT

Part Number: NTI-NX-20060-CK

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 1987-2006 YFZ350 BANSHEE - CBK0039

Rebuild Kit, Complete Bottom End, Yamaha, YFZ 350 Banshee, Kit

Part Number: HRI-CBK0039

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0041

Rebuild Kit, Complete Bottom End, Yamaha, YFS200 Blaster, Kit

Part Number: HRI-CBK0041

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 1999-2004 TRX400EX SPORTRAX - CBK0080

Rebuild Kit, Complete Bottom End, for use on Honda®, Kit

Part Number: HRI-CBK0080

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits HR00110

BOTTOM END KIT Polaris

Part Number: HRI-HR00110

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2008-2009 TRX700XX - 422-11009K

Cylinder Kit, Forged Piston, 3.00mm Oversize Bore, for use on Honda®, 10.50 to 1 Compression Ratio, Kit

Part Number: CLW-11009-K01

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Summit Racing™ Pro LS 5.7L Rotating Assemblies SUM-R24369033

Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 24X, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit ring, H Bearing

Part Number: SUM-R24369033

Not Yet Reviewed

Estimated Ship Date: Today

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Hot Rods Complete Bottom End Rebuild Kits CBK0186

Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0186

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 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: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1997-2001 CR250R - NX-10025-2K

TOP END REPAIR KIT

Part Number: NTI-NX-10025-2K

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0115

Rebuild Kit, Complete Bottom End, Yamaha, YFM700, YXR700F, Kit

Part Number: HRI-CBK0115

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Vertex Top-End Piston Kits for 2003-2004 CR85R, CR85RB EXPERT - VTK22863B

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22863B

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today