Engines and Components Pistons and Piston Rings

S&S Cycle

S&S Cycle 2007+ BT 4in Piston Ring Set - Standard

$169.95

SKU: S0GE 940-0040

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INSTALL DIFFICULTY
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Description

The S&S Cycle 940-0040 is a set of standard size piston rings with a moly face. These rings are designed for 4-inch bore engines with a 4-3/8 inch stroke and a compression ratio of 9.75-to-1.

This piston ring set is compatible with 1999-2017 Big Twin (BT) models, CVO Big Twin models from 2007 onwards with a 4-inch bore and 110ci engine, and 1986-up XL models. The product is proudly made in the USA by S&S Cycle.

Fitment

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Specifications

BrandS&S Cycle
Part NumberS0GE 940-0040

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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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