1981 Powersports Piston and Ring Kits

Repair Kit, Top End, 40.000mm Bore, 6.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40005K

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 42.000mm Bore, Kawasaki, Suzuki, Kit

Part Number: WIS-826M04200

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ProX Piston Kit PW50 '81-22 (40.50mm)

Part Number: PXR-01-2005-050

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Estimated Ship Date: Jan 15, 2026 if ordered today

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ProX Piston Kit PW50 '81-22 (41.00mm)

Part Number: PXR-01-2005-100

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-10051K

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 41.000mm Bore, Kawasaki, Suzuki, Kit

Part Number: WIS-826M04100

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 43.000mm Bore, Kawasaki, Suzuki, Kit

Part Number: WIS-826M04300

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Estimated Ship Date: Jan 19, 2026 if ordered today

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