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Engine Kits & Rotating Assemblies

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Results 1 - 25 of 727

BOTTOM END KIT Polaris

Part Number: HRI-HR00110

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-084

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 8.50 to 1 Compression, for use on Honda®, Kit

Part Number: VPX-WR00037

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Big Bore Cylinder Kit, Forged Piston, 97mm Bore, for use on Honda®, ATV, Kit

Part Number: CLW-11003-K01

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

BOTTOM END KIT Honda

Part Number: HRI-CBK0042

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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

Part Number: HRI-CBK0001

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cylinder Kit, Forged Piston, 4.00mm Oversize Bore, KTM, 12.80 to 1 Compression Ratio, Kit

Part Number: CLW-50002-K01

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Rebuild Kit, Complete Bottom End, Yamaha, YZ85, Kit

Part Number: HRI-CBK0076

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Top End Engine Kit, Sidewinder Big Bore, Black Wrinkle Finish, 4 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0651

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Big Bore Kit, 107 in., Drop-In, 3.937 in. Bore, Wrinkle Black Cylinders with Highlighted Fins, Harley-Davidson®, Kit

Part Number: SSY-910-0500

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30008K

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Repair Kit, Top End, 85.970mm Bore, 8.20 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10001K

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Cylinder Kit, Forged Piston, 5.00mm Oversize Bore, Polaris, 10.60 to 1 Compression Ratio, Kit

Part Number: CLW-61001-K01

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 12.90 to 1 Compression, for use on Honda®, Kit

Part Number: VPX-WR101-020

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

TOP END REPAIR KIT

Part Number: NTI-NA-10002-6K

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 12.10 to 1 Compression, for use on Honda®, Kit

Part Number: VPX-WR101-028

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

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

Part Number: CLW-23001-K01

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

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: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-215

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

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

Part Number: VPX-WR101-123

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

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

Part Number: HRI-CBK0116

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Rebuild Kit, Complete Bottom End, Suzuki, Kit

Part Number: HRI-CBK0225

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

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

Part Number: VPX-WR101-016

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

BIG BORE KIT

Part Number: CLW-11004-K01

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today