AIR/OIL SEPERATORS 10 PK OEM# 25329-91. INSTALL AS UPGRADE ON 86-91 BIG TWINS. A MUST FOR HIGH RPM.INSTALL W/CAMCOVER OFF. **CCI IS AN INDEPENDENT DISTRIBUTOR AND IS NOT AFFILIATED WITH HARLEY DAVIDSON INC. **
Source: Custom Chrome
These are Original Equipment parts. First fitted as Original Equipment on 1991 model Big Twins, these little baffles can be used in the cam cover stand pipe on any Evolution® Big Twin model to cut down on messy oil transfer problems. They are also useful when inserted into the breather hose on models up to 1992 and into the rocker box venting hoses on 1993 and later models with high flow air cleaners.