Big Bore Kits

Fuel Moto132" Big Bore Kit - Gen 2 M8 (117")

✓ Verified fit for your 2026 Fat Boy 117

About this part

Big Bore Piston & Cylinder Kit for the redesigned (Gen 2) Harley-Davidson Milwaukee-8 117in 4.5in-stroke engine, no case boring required

Options that fit your bike

  • Base kit$1,499.95
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