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Engines and Components› Pistons and Piston Rings

Cylinder Works

Cylinder Works 45611 KTM 350 SX-F 350cc +2mm Big Bore Top-End Gasket Kit 90mm

$149.95 $142.45 Save $7.50

SKU: C0BU 51001-G01

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

It features ready-to-install, direct bolt-on cylinders that do not require re-plating and closely resemble OEM cylinders. The kit includes matched Vertex pistons to enhance longevity, performance, and reduce engine noise. The cylinders are Nickel Silicon Carbide plated for durability, and the kit comes complete with all necessary gaskets, cylinder, piston, rings, pin, and clips. These big bore cylinders are made in the U.S.A. and do not require machine work.

Fitment

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Specifications

BrandCylinder Works
Part NumberC0BU 51001-G01

Videos

Cylinder Works Big Bore Cylinder Kit

Cylinder Works Big Bore Cylinder Kit

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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