-40%
S&S Crankcase Breather Reed Valve +.030" #31-2100 Harley Davidson
$ 71.86
- Description
- Size Guide
Description
S&S Crankcase Breather Reed Valve +.030" #31-2100 Harley DavidsonProduct Details
The functional part of S&S crankcase breather reed valves consists of steel reeds that are normally in the closed position. When the pistons travel downward in the cylinders, pressure in the crankcase below the pistons increases. This pressure causes the reeds to open, allowing the air and oil mist in the crankcase to escape into the cam chest. When the pistons change direction and begin traveling back upward in the cylinders, a vacuum is created in the crankcase. The vacuum causes the reeds to close, preventing air from entering the crankcase. The effect is that a slight vacuum is maintained in the crankcase, and oil scavenging is greatly improved.
Installation is fast and simple. Remove the original breather gear and insert the new S&S reed valve assembly into the breather valve cavity. No aligning timing marks, and no rotating parts.
Fit Guide
Model
Crankcase Breather Reed Valve Assembly
Country of Origin
USA
Size Over Standard
.030 in. over stock
Product Fitment
This item fits the following applications:
Harley Davidson CVO FXR2 1999
Harley Davidson CVO FXR3 1999
Harley Davidson FLHR Electra Glide Road King 1994
Harley Davidson FLHR Electra Glide Road King 1995-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHR Road King 1994
Harley Davidson FLHR Road King 1995-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHRCI Road King Classic 1998-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHRI Road King 1996-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHS 80 Electra Glide Sport 1993
Harley Davidson FLHS 1200 Electra Glide Sport 1993
Harley Davidson FLHS Electra Glide Sport 1993
Harley Davidson FLHT Electra Glide 1995-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHT Electra Glide Standard 1995-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHTC Electra Glide Classic 1993-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHTCI Electra Glide Classic 1996-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHTCU Electra Glide Ultra Classic 1993-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHTCU Ultra Classic Electra Glide 1993-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLHTCUI Ultra Classic Electra Glide 1995-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLSTC Heritage Softail Classic 1993-1999
Harley Davidson FLSTF Softail Fat Boy 1993-1999
Harley Davidson FLSTN Heritage Softail Nostalgia 1993
Harley Davidson FLSTN Heritage Softail Special 1994-1996
Harley Davidson FLSTS Heritage Springer Softail 1997-1999
Harley Davidson FLTCU Ultra Classic Tour Glide 1993-1995
Harley Davidson FLTCUI Ultra Classic Tour Glide 1996
Harley Davidson FLTR Road Glide 1998-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLTRI Road Glide 1998-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FLTRX Road Glide 1998-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FXD Dyna Super Glide 1995-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FXDL Dyna Low Rider 1993-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FXDS-CONV Dyna Convertible 1995-1998
Harley Davidson FXDS-CONV Dyna Low Rider Convertible 1995-1998
Harley Davidson FXDS-CONV Dyna Low Rider Convertible 1994
Harley Davidson FXDS-CONV Dyna Super Glide Convertible 1995-1998
Harley Davidson FXDS-CONV Dyna Super Glide Convertible 1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FXDWG Dyna Wide Glide 1993-1999
Note(s):
Big Twin only, does not fit 1999 Twin Cam models.
Harley Davidson FXLR Low Rider Custom 1993-1994
Harley Davidson FXR Super Glide 1993-1994
Harley Davidson FXRS-CONV Low Rider Convertible 1993
Harley Davidson FXRS-SP Low Rider Sport Edition 1993
Harley Davidson FXST Softail Standard 1999
Harley Davidson FXSTB Softail Night Train 1999
Harley Davidson FXSTC Softail Custom 1993-1999
Harley Davidson FXSTS Springer Softail 1993-1999
Harley Davidson FXSTSB Softail Bad Boy 1995-1997
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