Plastic breather valve spacer set, .130" to .165" - L77-99 B.T. (excl. Twin Cam) (NU) 519999 HARLEY DAVIDSON FLD - Dyna

HARLEY DAVIDSON  FLD - Dyna Switchback: 2016

Plain type Cover and bolts

EZ length is 1" shorter than stock

Will pull hard from 2000 to 5500 RPM

5/16-24 threaded stud

Plastic breather valve spacer set, .130" to .165" - L77-99 B.T. (excl. Twin Cam) (NU) 519999 HARLEY DAVIDSON FLD - DynaPlastic spacer set, 8 pk. Incl. . 130", . 135", . 140", . 145", . 150", . 155", . 160" and . 165" sized spacers. Use with plastic breather valves only. Large hole. Note: Steel breathers require steel breather valve spacers. Plastic breathers require plastic spacers. Do not intermix steel and plastic parts. Note: The OEM plastic breather is low cost but an inferior, poor quality product that will cause damage to crankcases in the breather bore since it