S&S Crankcase Breather Reed Valve +.030 (31-2100)
$182.27
$149.78
(You save
$32.49
)
S&S - CRANKCASE BREATHER REED VALVE
- Made in the U.S.A.
- By opening and closing "on demand," the reed valves automatically compensate for the lag time associated with accelerating the mass of air as it is forced out of the crankcase, increasing performance and stopping high-rpm oil carryover in engines with marginal piston ring seal.
- Installation is fast and simple; no aligning timing marks, and no rotating parts.
- New-style breather is not dependent on the rotation of the crankshaft to make it open and close; instead, reeds open when the pressure in the crankcase becomes greater than the pressure in the cam chest and close when the pressure in the cam chest is equal to or greater than the pressure in the crankcase.
- Available in standard or +.030" oversize.
- Sold each.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1995-1997 | Harley-Davidson | Bad Boy FXSTSB | |
| 1984 | Harley-Davidson | Disc Glide FXRDG | |
| 1995-1999 | Harley-Davidson | Dyna Convertible FXDS-Conv | |
| 1992 | Harley-Davidson | Dyna Daytona FXDB-D | |
| 1992 | Harley-Davidson | Dyna Glide Custom FXDC | |
| 1993 | Harley-Davidson | Dyna Low Rider Convertible FXRS-Conv | |
| 1993-1994 | Harley-Davidson | Dyna Low Rider Custom FXLR | |
| 1993-1999 | Harley-Davidson | Dyna Low Rider FXDL | |
| 1993 | Harley-Davidson | Dyna Low Rider Sport FXRS-SP | |
| 1991 | Harley-Davidson | Dyna Sturgis FXDB | |
| 1995-1999 | Harley-Davidson | Dyna Super Glide FXD | |
| 1999 | Harley-Davidson | Dyna Super Glide Sport FXDX | |
| 1993-1999 | Harley-Davidson | Dyna Wide Glide FXDWG | |
| 1996-1999 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | |
| 1984-1999 | Harley-Davidson | Electra Glide Classic FLHTC | |
| 1986-1987 | Harley-Davidson | Electra Glide FLHT | |
| 1995-1999 | Harley-Davidson | Electra Glide FLHT | |
| 1985 | Harley-Davidson | Electra Glide FLHX | |
| 1987-1993 | Harley-Davidson | Electra Glide Sport FLHS | |
| 1995-1999 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | |
| 1989-1997 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | |
| 1990-1999 | Harley-Davidson | Fat Boy FLSTF | |
| 1989-1999 | Harley-Davidson | Heritage Softail Classic FLSTC | |
| 1986-1990 | Harley-Davidson | Heritage Softail FLST | |
| 1993 | Harley-Davidson | Heritage Softail Nostalgia FLSTN | |
| 1994-1996 | Harley-Davidson | Heritage Softail Special FLSTN | |
| 1997-1999 | Harley-Davidson | Heritage Springer FLSTS | |
| 1984-1985 | Harley-Davidson | Low Glide FXRS | |
| 1987 | Harley-Davidson | Low Rider Chrome FXRC | |
| 1990-1992 | Harley-Davidson | Low Rider Convertible FXRS-Conv | |
| 1987-1992 | Harley-Davidson | Low Rider Custom FXLR | |
| 1986-1992 | Harley-Davidson | Low Rider FXRS | |
| 1984-1985 | Harley-Davidson | Low Rider FXSB | |
| 1986-1992 | Harley-Davidson | Low Rider Sport FXRS-SP | |
| 1999 | Harley-Davidson | Night Train FXSTB | |
| 1998-1999 | Harley-Davidson | Road Glide EFI FLTRI | |
| 1998-1999 | Harley-Davidson | Road Glide FLTR | |
| 1998-1999 | Harley-Davidson | Road King Classic EFI FLHRCI | |
| 1996-1997 | Harley-Davidson | Road King EFI FLHRI | |
| 1994-1999 | Harley-Davidson | Road King FLHR | |
| 1986-1999 | Harley-Davidson | Softail Custom FXSTC | |
| 1984-1990 | Harley-Davidson | Softail FXST | |
| 1988-1999 | Harley-Davidson | Softail Springer FXSTS | |
| 1999 | Harley-Davidson | Softail Standard FXST | |
| 1984-1992 | Harley-Davidson | Sport Glide FXRT | |
| 1986 | Harley-Davidson | Sport Glide Grand Touring FXRT | |
| 1999 | Harley-Davidson | Super Glide CVO FXR2 | |
| 1999 | Harley-Davidson | Super Glide CVO FXR3 | |
| 1984 | Harley-Davidson | Super Glide Electric Start FXE | |
| 1985 | Harley-Davidson | Super Glide FatBob FXEF | |
| 1986-1994 | Harley-Davidson | Super Glide FXR | |
| 1984-1991 | Harley-Davidson | Tour Glide Classic FLTC | |
| 1989-1993 | Harley-Davidson | Tour Glide Ultra Classic FLTCU | |
| 1984-1986 | Harley-Davidson | Wide Glide FXWG | |