920-0142 M8 114" to 128" big bore piston kit. +.010"
Fits: 18-24 114"/117" Softail; 17-25 114"…
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Specifications
- Brand
- S&S
- Part Number
- 920-0142
- OEM Reference
- —
- Pack Quantity
- Sold as kit
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
S&S big bore piston kit in plus ten thousandths oversize for a 114 or 117-inch to 128-inch Milwaukee-Eight build. Compression ratio is 11.1:1. These forged pistons suit the factory 4.500-inch stroke. The kit includes rings, wristpins, and clips. You need 4.250-inch big bore cylinders. It fits 2018 to 2024 Softail and 2017 to 2025 Touring models. It does not fit the newest CVO or 2024-up fairing models. An S&S 550 series cam works well here.
Manufacturer part number: 920-0142.
Fitment
18-24 114"/117" Softail; 17-25 114" FLT/Touring/117" FLT/Touring (excl. 23-25 CVO; 24-25 FLTRX; 24-25 FLHX; 2025 FLHXU)
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