Pro-X Racing Parts Engines & Components

ProX Piston Kit Yamaha YZ250F '19-22 13.8:1 (76.97mm)

Part Number: PXR-01-2439-C

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Estimated Ship Date: Nov 17, 2025 if ordered today

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ProX Piston Kit YZ450F '18-19 + YZ450FX '19-20 (96.96mm)

Part Number: PXR-01-2448-B

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ProX Piston Kit YZ450F '18-19 + YZ450FX '19-20 (96.97mm)

Part Number: PXR-01-2448-C

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ProX Piston Kit YZ450F '20-22+WR450F '21-22 13.0:1 (96.95mm)

Part Number: PXR-01-2450-A

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ProX Piston Kit SJ700 '94-17/Wave Runnr 1100 "Art" (81.00mm)

Part Number: PXR-01-2510-000

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ProX Pst Kit XR200 '80-84/200R '81-83+86-02 10.0:1 (66.00mm)

Part Number: PXR-01-1281-050

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ProX Pst Kit XR200 '80-84/200R '81-83+86-02 10.0:1 (66.50mm)

Part Number: PXR-01-1281-100

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ProX Pst Kit XR200 '80-84/200R '81-83+86-02 10.0:1 (67.00mm)

Part Number: PXR-01-1281-150

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ProX Piston Kit TRX250R '87-89 2-Stroke (66.50mm)

Part Number: PXR-01-1300-050

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ProX Piston Kit SJ700 '94-17/Wave Runnr 1100 "Art" (81.50mm)

Part Number: PXR-01-2510-050

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ProX Piston Kit XL/GP800R + XL/GP1200R '98-05 (79.90mm)

Part Number: PXR-01-2518-A

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ProX Piston Kit XL/GP800R + XL/GP1200R '98-05 (79.91mm)

Part Number: PXR-01-2518-B

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ProX Piston Kit XL/GP800R + XL/GP1200R '98-05 (79.93mm)

Part Number: PXR-01-2518-D

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ProX Piston Kit GP1300R '03-08 (83.90mm)

Part Number: PXR-01-2520-A

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ProX Piston Kit GP1300R '03-08 (83.91mm)

Part Number: PXR-01-2520-B

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ProX Piston Kit XT500 '76-81 + TT500 '76-81 9.0:1 (87.00mm)

Part Number: PXR-01-2576-000

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ProX Piston Kit XT500 '76-81 + TT500 '76-81 9.0:1 (87.50mm)

Part Number: PXR-01-2576-050

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ProX Piston Kit XT500 '76-81 + TT500 '76-81 9.0:1 (88.00mm)

Part Number: PXR-01-2576-100

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ProX Piston Kit Yamaha XT/TT600 '84-04 (95.00mm)

Part Number: PXR-01-2601-000

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ProX Piston Kit Yamaha XT/TT600 '84-04 (95.25mm)

Part Number: PXR-01-2601-025

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ProX Piston Kit Yamaha XT/TT600 '84-04 (95.50mm)

Part Number: PXR-01-2601-050

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ProX Piston Kit Yamaha XT/TT600 '84-04 (95.75mm)

Part Number: PXR-01-2601-075

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ProX Piston Kit Yamaha XT/TT600 '84-04 (96.00mm)

Part Number: PXR-01-2601-100

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ProX Piston Kit Yamaha XT/TT600 '84-04 (97.00mm)

Part Number: PXR-01-2601-200

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ProX Pstn Kit XT660R/X '04-11/MT-03 '06-11 10.0:1 (99.95mm)

Part Number: PXR-01-2664-A

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