Engine Kits & Rotating Assemblies

Engine Re-Ring, Moly, 4.030 in. Bore, .030 in. Rod, Chevy, 350, Kit

Part Number: FEM-205630-33

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Estimated Ship Date: Dec 22, 2025 if ordered today

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RERING KIT

Part Number: FEM-205-6287M322

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Estimated Ship Date: Dec 22, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20017K

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Estimated Ship Date: Jan 5, 2026 if ordered today

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RERING KIT

Part Number: FEM-205-6001M000

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Estimated Ship Date: Dec 22, 2025 if ordered today

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RERING KIT

Part Number: FEM-205-1182M000

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Re-Ring Kit Prm. Rings

Part Number: FEM-205-6182

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Estimated Ship Date: Jan 5, 2026 if ordered today

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PISTON, 2014-2026

Part Number: MOP-68230025AC

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Estimated Ship Date: Feb 2, 2026 if ordered today

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PISTON, 2014-2026

Part Number: MOP-68230024AC

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Repair Kit, Top End, 85.450mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011-4K

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Repair Kit, Top End, 81.45mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50001-6K

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Re-Ring Kit Eco. Rings

Part Number: FEM-205-1909

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Estimated Ship Date: Dec 22, 2025 if ordered today

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TOP END GASKET KIT, TOP END REPAIR KIT (FORGED PISTON)

Part Number: NTI-FX-10045-BK

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Racing Spring Kit, Titanium, 0.435" Lift, Honda®, CRF 250R/RX, 2018-2021

Part Number: KPM-30-33600

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Estimated Ship Date: Jan 5, 2026 if ordered today

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LOWER ENGINE KIT

Part Number: MAH-LK778

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Racing Spring Kit, Titanium, 0.450" Lift, Kawasaki®, KX 250's, 2020-2023

Part Number: KPM-40-41600

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Racing Spring Kit, HT Steel, 0.520" Lift, Indian®, Challengers (All), 2020-2023

Part Number: KPM-82-85000

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Racing Spring Kit, Titanium, 0.450" Lift, Polaris®, Various 570's, 2014-2023

Part Number: KPM-82-86000

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Racing Spring Kit, HT Steel, 0.450" Lift, Polaris®, Various 570's, 2014-2023

Part Number: KPM-82-86010

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Repair Kit, Top End, 66.340mm Bore, 8.70 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10025K

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Estimated Ship Date: Dec 29, 2025 if ordered today

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REMAIN KIT- STD

Part Number: MAH-RR3016

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Estimated Ship Date: Jan 2, 2026 if ordered today

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RERING KIT

Part Number: MAH-RR302

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Estimated Ship Date: Jan 2, 2026 if ordered today

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RERING KIT- STD

Part Number: MAH-RR3023

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Estimated Ship Date: Jan 2, 2026 if ordered today

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RERING KIT- STD

Part Number: MAH-RR3024

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Estimated Ship Date: Jan 2, 2026 if ordered today

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RERING KIT- STD

Part Number: MAH-RR3025

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Estimated Ship Date: Jan 2, 2026 if ordered today

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RERING KIT

Part Number: MAH-RR303

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Estimated Ship Date: Jan 2, 2026 if ordered today

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