Powersports Piston and Ring Kits

ProX Piston Kit KTM250SX '03-22 + KTM250EXC '06-22 (66.34mm)

Part Number: PXR-01-6343-A

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit KTM250SX '03-22 + KTM250EXC '06-21 (66.37mm)

Part Number: PXR-01-6343-D

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit Ski-Doo MXZ600 '99-01 (76.00mm)

Part Number: PXR-01-5699-000

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Estimated Ship Date: Dec 10, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70005-BK

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Estimated Ship Date: Dec 9, 2025 if ordered today

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TOP END KIT TWIN CYLINDER 90.42/STD POL

Part Number: NTI-NA-50093K

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Estimated Ship Date: Dec 10, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10000-2K

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Repair Kit, Top End, 53.950mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10000-BK

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Estimated Ship Date: Dec 10, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10000-BK1

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Repair Kit, Top End, 66.340mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10026K1

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Cylinder Head NAMURA TOP END REPAIR KIT NAMURA TOP END REPAIR KIT

Part Number: NTI-NX-20013K

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Repair Kit, Top End, 66.370mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025-CK

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Repair Kit, Top End, 90.210mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10000-1K

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Repair Kit, Top End, 67.420mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003-6K

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Repair Kit, Top End, 100.470mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40004-2K

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit Polaris 600 CFI '07-16 (77.25mm)

Part Number: PXR-01-5607-000

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit PW80 '83-06 -3E5- (47.50mm)

Part Number: PXR-01-2008-050

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit XL125 / CB125S -324- (57.00mm)

Part Number: PXR-01-1175-050

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit TRX250R '87-89 2-Stroke (67.50mm)

Part Number: PXR-01-1300-150

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit TRX250R '87-89 2-Stroke (68.00mm)

Part Number: PXR-01-1300-200

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit CR250 '86-96 + RM250 '96-97 "Art" (66.38mm)

Part Number: PXR-01-1315-A4

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit KTM250SX-EXC '96-99 (67.44mm)

Part Number: PXR-01-6317-A

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit KTM250SX-EXC '96-99 (67.45mm)

Part Number: PXR-01-6317-B

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit TS50ER/X + FZ/JR/LT50 -46103- (41.50mm)

Part Number: PXR-01-3001-050

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit YZ250 '99-22 + RM250 '03-12 (66.37mm)

Part Number: PXR-01-2321-C

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Estimated Ship Date: Dec 10, 2025 if ordered today

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ProX Piston Kit Husqvarna CR/WR125 '97-13 (53.94mm)

Part Number: PXR-01-6216-A

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Estimated Ship Date: Dec 10, 2025 if ordered today

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