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

Cylinder Works Big Bore Cylinder Kits for 2004-2013 YFZ450, 2006-2007 YFZ450 BILL BALANCE EDITION, 2007-2008 YFZ450 SE - 422-23001K

Cylinder Kit, Forged Aluminum, 3.00mm Oversize Bore, Yamaha, YFZ450, Set

Part Number: CLW-23001-K01

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Cylinder Works Big Bore Cylinder Kits 422-41001K

Big Bore Cylinder Kit, Forged Piston, 94mm Bore, Arctic Cat, Kawasaki, Suzuki, ATV, Motorcycle, Kit

Part Number: CLW-41001-K01

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Vertex Complete Engine Rebuild Kits for 1988 CR500R - WR101-123

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, for use on Honda®, Kit

Part Number: VPX-WR101-123

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Summit Racing™ Chevy 350 Engine Kit Pro Packs SES-3484000050

Engine Kit, Crank, Moly Ring, Rod, Main, Gaskets, Oil Pump, Timing Set, Chevy, 357, Kit

Part Number: SES-3484000050

Not Yet Reviewed

Cannot be shipped Internationally

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Cannot be shipped Internationally

Hot Rods Complete Bottom End Rebuild Kits for 2013-2015 RMZ250 - CBK0225

Rebuild Kit, Complete Bottom End, Suzuki, Kit

Part Number: HRI-CBK0225

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Vertex Complete Engine Rebuild Kits for 2010-2025 CRF150R, 2012-2025 CRF150R EXPERT - WR101-178

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 11.70 to 1 Compression, for use on Honda®, Kit

Part Number: VPX-WR101-178

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Summit Racing™ Chevy 350 Engine Kit Pro Packs SES-3480111000

Engine Kit, Dish-Top Piston/Moly Ring, Rod/Main Bearings, Gaskets, Oil Pump, Timing Set, Chevy, 350, Kit

Part Number: SES-3480111000

Not Yet Reviewed

Cannot be shipped Internationally

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Cannot be shipped Internationally

Kibblewhite Powersports Top End Engine Kits 82-83150

Cyl. Head Serv. Kit, Polaris®, RZR XP1000, 2015-2019

Part Number: KPM-82-83150

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0083

Rebuild Kit, Complete Bottom End, Yamaha, Kit

Part Number: HRI-CBK0083

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Federal Mogul Engine Rebuild Kits 205-6084M000

RERING KIT

Part Number: FEM-205-6084M000

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Vertex Complete Engine Rebuild Kits for 1989-2001 CR500R - WR00020

Complete Engine Rebuild Kit, 1.50mm Over Bore, Stock Stroke, for use on Honda®, Kit

Part Number: VPX-WR00020

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

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Estimated Ship Date: Dec 23, 2025 if ordered today

Summit Racing™ Engine Rebuild Kits 08-0073

Engine Rebuild, Hypereutectic Dish Top, Plasmamoly Rings, Stock Bore, .010 in. Under Bearings, Chevy, LS

Part Number: CMB-08-0073

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hot Rods Complete Bottom End Rebuild Kits CBK0182

Gasket Kit COMPLETE BOTTOM END KIT COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0182

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Summit Racing™ Engine Rebuild Kits 08-0069

Engine Rebuild Kit, Hypereutectic Flat Top, Plasmamoly Rings, Stock Bore, .010 in. Under Bearings, Chevy, LS

Part Number: CMB-08-0069

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hot Rods Complete Bottom End Rebuild Kits CBK0116

Rebuild Kit, Complete Bottom End, Yamaha, YFM66F, YXR66F, Kit

Part Number: HRI-CBK0116

Not Yet Reviewed

Estimated Ship Date: Dec 16, 2025 if ordered today

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Estimated Ship Date: Dec 16, 2025 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2001-2013 WR250F, YZ250F - 422-21002K

Big Bore Cylinder Kit, Forged Piston, 80mm Bore, Yamaha, Motorcycle, Kit

Part Number: CLW-21002-K01

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 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: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Vertex Complete Engine Rebuild Kits for 2003-2012 85 SX (17/14), 2005-2010 85 SX (19/16), 2012 85 SXS - WR101-056

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, KTM, Kit

Part Number: VPX-WR101-056

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Vertex Complete Engine Rebuild Kits for 2001-2004 KX100, 2003 RM100 - WR101-106

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, Kawasaki, Suzuki, Kit

Part Number: VPX-WR101-106

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Federal Mogul Engine Rebuild Kits MKP6026C000

ENGINE KIT

Part Number: FEM-MKP6026C000

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow 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: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2007-2008 CRF450R - 422-10002K2

CYLINDER, CYL WORKS STD BORE KIT CRF450R

Part Number: CLW-10002-K02

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Cylinder Works Big Bore Cylinder Kits for 2009-2015 KX450F - 422-31011K

2MM BIG BORE CYLINDER KIT

Part Number: CLW-31011-K01

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hot Rods Complete Bottom End Rebuild Kits CBK0031

Rebuild Kit, Complete Bottom End, for use on Honda®, CR250R, Kit

Part Number: HRI-CBK0031

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Cylinder Works Big Bore Cylinder Kits 422-21003K2

Cylinder Kit, Forged Aluminum, 3.00mm Oversize Bore, Yamaha, Set

Part Number: CLW-21003-K02

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today