CP Pistons M8 120 10.75:1

Marsoni

M251S

$233.23

Get it in 3 business days with 1 day shipping. Friday, May 29

CP Pistons M8 120 10.75:1Bore Size: 4. 125; Compression: 10. 75: 1; Displacement: 120"; Stroke: 4. 500; Dome Height: 1. 080; Dome Volume: 4. 0 This Part Fits: Year Make Model Submodel 2018 2020 Harley Davidson FLDE Deluxe 107 Base 2018 2021 Harley Davidson FLFBS Fat Boy 114 Base 2018 2021 Harley Davidson FLHCS Heritage Classic 114 Base 2017 2021 Harley Davidson FLHR Road King Base 2017 2021 Harley Davidson FLHRXS Road King Special Base 2019 2021 Harley Davidson FLHT Electra

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Had everything I needed plus some extra parts in the kit. I probably could have just replaced the impeller for slightly less but while everything was disassembled you might as well replace the works. Included - Water Pump Impeller, Housing, Key, Face Plate, Face Plate Gasket, O-Ring, Seal Face and Carrier Assembly Oil Seal

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Reviewed in the United States on October 28, 2025