Engine Rotating Assemblies & Rebuild Kits

Pro LS 4340 Piston and Rod Kit, 367 Cid., 3.820 bore, 4.000 stroke, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR408205

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Pro LS 4340 Piston and Rod Kit, 382 Cid., 3.898 bore, 4.000 stroke, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR4089816

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Pro LS 4340 Piston and Rod Kit, 383 Cid., 3.903 bore, 4.000 stroke, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR409035

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HD IN-FRAME KIT

Part Number: CLE-4565007STD

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Estimated Ship Date: Nov 13, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565036STD

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Estimated Ship Date: Nov 13, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565040STD

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HD IN-FRAME KIT

Part Number: CLE-4565046STD

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HD IN-FRAME KIT

Part Number: CLE-4565089STD

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HD IN-FRAME KIT

Part Number: CLE-4595020STD

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HD IN-FRAME KIT, STD

Part Number: CLE-4595024STD

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HD IN-FRAME KIT

Part Number: CLE-4595526STD

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HD IN-FRAME KIT

Part Number: CLE-4895016STD

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HD IN-FRAME KIT, STD

Part Number: CLE-4895020STD

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0140

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Estimated Ship Date: Oct 14, 2025 if ordered today

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0145

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Rebuild Kit, Complete Bottom End, Stroker Crank, Yamaha, Kit

Part Number: HRI-CBK0150

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Estimated Ship Date: Oct 14, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YFZ450R, YFZ450X, Kit

Part Number: HRI-CBK0179

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Estimated Ship Date: Oct 14, 2025 if ordered today

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Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0186

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Estimated Ship Date: Oct 14, 2025 if ordered today

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0190

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Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0192

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Rebuild Kit, Complete Bottom End, Yamaha, Kit

Part Number: HRI-CBK0205

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Rebuild Kit, Complete Bottom End, Kawasaki, Kit

Part Number: HRI-CBK0207

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BOTTOM END KIT

Part Number: HRI-CBK0231

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HOT ROD COMPLETE BTM KAW KX250

Part Number: HRI-CBK0055

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Rebuild Kit, Complete Bottom End, Kawasaki, Kit

Part Number: HRI-CBK0061

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