Engines and Components› Pistons and Piston Rings

S&S Cycle

S&S Cycle 1986+ XL 3 9/16 Bore Forged Pistons

$484.95

SKU: S0GE 920-0071

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 920-0071

These S&S 1250cc conversion pistons for 1986-'21 HD (R) Sportster (R) Models increase the displacement of 883cc and 1200cc engines to 1250cc at 11.2:1 compression. May be used with stock 1200cc cylinder heads, but S&S CNC ported heads are recommended. Stock 1200cc cylinders and 1986-'2003 883cc cylinders may be bored to accept the 3-9/16" bore 1250cc pistons, but 2004-'16 883cc cylinders may not be used. Also available in a cylinder and piston kit.

MIA's Description

This forged piston kit (domed) is designed for a 1250cc motor with a standard bore of 3.5625 inches and a compression ratio of 11.2:1.

Fitment

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Specifications

BrandS&S Cycle
Part NumberS0GE 920-0071

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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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