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22143-08B
22143-08B
PISTON FOR STOCK .10/3.875

When combined with stock cylinder heads these forged 3-7/8 pistons boost the compression ratio of your 3-7/8 big bore cylinder set-up. The combination results in a compression ratio of 10.5:1. and requires the use of mechanical Compression Release Kit P/N 32076-04. Pistons skirts feature a unique black coating for improved wear-resistance better fit and reduced noise. These pistons include Titanium SST rings to withstand the stresses seen in racing. All EFI models require ECM calibration (priced seperately.)

Fitment: Fits 07-17 Twin Cam models equipped with 3-7/8 cylinders and 4-3/8 stroke flywheels. Does not fit FXDLS FLSS FLSTFBS FXSE or Twin Cooled models.



MSRP:  $367.95
PRICE:  $334.51