2025 Engine Kits & Rotating Assemblies Engines & Components

Namura Technologies Top-End Repair Kits for 1993-2005 TRX90 SPORTRAX, 2007-2008 TRX90EX SPORTRAX, 2009-2025 TRX90X - NA-10090K

TOP END REPAIR KIT

Part Number: NTI-NA-10090K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NX-10051-2K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-10051-2K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 132 in. Big Bore Kits 910-0846A

2017+ M8 Models 4.320in Bore 4.500in Stroke Cylinder Kit - Wrinkle Black w/o Highlight

Part Number: SSY-910-0846A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 Big Bore Cylinders 910-0683A

2017 M8 Models 4.250 Bore w/o Highlight Big Bore Cylinder Set

Part Number: SSY-910-0683A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 132 in. Big Bore Kits 910-0845A

2017+ M8 Models 4.5in Stroke 132in Big Bore Kit

Part Number: SSY-910-0845A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 128 in. Big Bore Kits 910-0685A

2017+ M8 Models 4.250in Bore 4.500in Stroke Cylinder Kit - Wrinkle Black w/o Highlight

Part Number: SSY-910-0685A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 132 in. Big Bore Kits 910-0847A

2017+ M8 Models 4.320in Bore 4.500in Stroke Cylinder Kit - Black Granite w/ Highlight

Part Number: SSY-910-0847A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 128 in. Big Bore Kits 910-0733A

2017+ M8 4.2520in Bore x 4.5in Stroke 117 to 128 Big Bore Kit

Part Number: SSY-910-0733A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-10012-4K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10012-4K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-20077K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20077K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-30053K

TOP END REPAIR KIT

Part Number: NTI-NA-30053K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40013-BK

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40013-BK

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50091K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50091K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50019-6K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50019-6K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-20040K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 Big Bore Cylinders 910-0737

2017+ M8 Models 4.250in Bore Rear Cylinder - Black Granite w/ Highlight

Part Number: SSY-910-0737

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 136 in. Big Bore Kits 910-0849A

2017+ M8 Models 4.320in Bore 4.625in Stroke Cylinder Kit - Wrinkle Black w/o Highlight

Part Number: SSY-910-0849A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 Big Bore Cylinders 910-0734

2017+ M8 Models 4.250in Bore Front Cylinder - Black Granite w/ Highlight

Part Number: SSY-910-0734

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 Big Bore Cylinders 910-0675

2017+ M8 Models 4.250in Bore Front Cylinder - Wrinkle Black w/ Highlight

Part Number: SSY-910-0675

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 128 in. Big Bore Kits 910-0684A

2017+ M8 Models 4.250in Bore x 4.5in Stroke 114 To 128 Big Bore Kit

Part Number: SSY-910-0684A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 Big Bore Cylinders 910-0674

2017 M8 Models 4.250in Bore Rear Cylinder - Wrinkle Black w/o Highlight

Part Number: SSY-910-0674

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 136 in. Big Bore Kits 910-0850A

2017+ M8 Models 4.320in Bore 4.625in Stroke Cylinder Kit - Black Granite w/ Highlight

Part Number: SSY-910-0850A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 136 in. Big Bore Kits 910-0848A

2017+ M8 Models 4.320in Bore 4.625in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Part Number: SSY-910-0848A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today