Engine Rotating Assemblies & Rebuild Kits

BOTTOM END KIT

Part Number: HRI-HR00234

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YZ450F, Kit

Part Number: HRI-CBK0110

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, for use on Honda®, CRF450X, Kit

Part Number: HRI-CBK0105

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, for use on Honda®, CRF450R, Kit

Part Number: HRI-CBK0017

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Estimated Ship Date: May 4, 2026 if ordered today

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0012

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, KTM, 65 SX, Kit

Part Number: HRI-CBK0085

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT CAN

Part Number: HRI-HR00203

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT

Part Number: HRI-HR00232

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT

Part Number: HRI-HR00226

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT

Part Number: HRI-HR00233

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00117

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT

Part Number: HRI-HR00211

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT

Part Number: HRI-HR00236

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, Kit

Part Number: HRI-CBK0205

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Estimated Ship Date: May 1, 2026 if ordered today

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BOTTOM END KIT

Part Number: HRI-CBK0231

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, Suzuki, Kit

Part Number: HRI-CBK0165

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00113

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, KTM, 250 SX-F, Kit

Part Number: HRI-CBK0071

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Estimated Ship Date: May 4, 2026 if ordered today

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BOTTOM END KIT

Part Number: HRI-HR00189

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, Kawasaki, Kit

Part Number: HRI-CBK0193

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Estimated Ship Date: May 4, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, KTM, 85 SX, Kit

Part Number: HRI-CBK0107

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Estimated Ship Date: May 4, 2026 if ordered today

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Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 24X, 6.125 rod, 8cc dish, 11.1:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400308

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 24X, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244003020

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Engine Rotating Assembly, Street, Cast Crank, Pistons, Flat Top, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B15405E030

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Engine Rotating Assembly, Street/Strip, 4.310 in. Bore, Cast Crank, Forged Pistons, I-Beam Rods, Chevrolet, Big Block Mark IV, Kit

Part Number: ESP-B18022060

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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