S&S Cycle Breather Reed Valves - Crankcase - +0.030" Oversize - Evolution Big Twin '93-'99

S&S Cycle

S&S Cycle

SKU: 90-35442

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Product Details

S&S Cycle Breather Reed Valves - Crankcase - +0.030" Oversize - Evolution Big Twin '93-'99. Fits 42 Harley-Davidson models from 1993 to 2000, including the Electra Glide Classic EFI FLHTCI, Electra Glide Ultra Classic FLHTCU and FLHR Road King. Manufacturer part number 312100.

Features

  • New-style breather is not dependent on the rotation of the crankshaft to make it open and close. Instead, reeds open when pressure in the crankcase becomes greater than pressure in the cam chest, and close when pressure in the cam chest is equal to or greater than pressure in the crankcase
  • By opening and closing "on demand," the reed valves automatically compensate for 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
  • Made in the U.S.A.

Made in the USA

Specifications

Vendor Part Number
312100
Package Height
1.25
Package Length
4.8
Package Width
4.1
Parts Unlimited #
0920-0009
Color Family
Silver
Brand
S&S Cycle
Color/Finish
Silver
Diameter - Thread Size Imperial
+0.030"
Riding Style
Street
Type
Crankcase
Unit of Measure
Each

Fitment

42 vehicles
Year Make / Model Model
1995 Harley-Davidson
Electra Glide Classic EFI FLHTCI Electra Glide Classic EFI FLHTCI
1998 Harley-Davidson
Electra Glide Ultra Classic FLHTCU Electra Glide Ultra Classic FLHTCU
1994 - 1998 Harley-Davidson
FLHR Road King FLHR Road King
1998 Harley-Davidson
FLHRCI Road King Classic FLHRCI Road King Classic
1996 - 1997 Harley-Davidson
FLHRI Road King FLHRI Road King
1993 Harley-Davidson
FLHS Electra Glide Sport FLHS Electra Glide Sport
1995 - 1998 Harley-Davidson
FLHT Electra Glide Standard FLHT Electra Glide Standard
1993 - 1998 Harley-Davidson
FLHTC Electra Glide Classic FLHTC Electra Glide Classic
1996 - 1998 Harley-Davidson
FLHTCI Electra Glide Classic FLHTCI Electra Glide Classic
1993 - 1997 Harley-Davidson
FLHTCU Electra Glide Ultra Classic FLHTCU Electra Glide Ultra Classic
1995 - 1998 Harley-Davidson
FLHTCUI Electra Glide Ultra Classic FLHTCUI Electra Glide Ultra Classic
1993 - 1999 Harley-Davidson
FLSTC Heritage Softail Classic FLSTC Heritage Softail Classic
1993 - 1999 Harley-Davidson
FLSTF Fat Boy FLSTF Fat Boy
1993 Harley-Davidson
FLSTN Heritage Softail Nostalgia FLSTN Heritage Softail Nostalgia
1994 - 1996 Harley-Davidson
FLSTN Heritage Softail Special FLSTN Heritage Softail Special
1997 - 1999 Harley-Davidson
FLSTS Heritage Springer FLSTS Heritage Springer
1993 Harley-Davidson
FLTC Tour Glide Classic FLTC Tour Glide Classic
1993 - 1995 Harley-Davidson
FLTCU Tour Glide Ultra Classic FLTCU Tour Glide Ultra Classic
1996 Harley-Davidson
FLTCUI Tour Glide Ultra Classic FLTCUI Tour Glide Ultra Classic
1998 Harley-Davidson
FLTR Road Glide FLTR Road Glide
1998 Harley-Davidson
FLTRI Road Glide FLTRI Road Glide
1995 - 1998 Harley-Davidson
FXD Dyna Super Glide FXD Dyna Super Glide
1993 - 1998 Harley-Davidson
FXDL Dyna Low Rider FXDL Dyna Low Rider
1995 - 1998 Harley-Davidson
FXDS-Conv Dyna Convertible FXDS-Conv Dyna Convertible
1993 - 1998 Harley-Davidson
FXDWG Dyna Wide Glide FXDWG Dyna Wide Glide
1993 - 1994 Harley-Davidson
FXLR Low Rider Custom FXLR Low Rider Custom
1993 - 1994 Harley-Davidson
FXR Super Glide II FXR Super Glide II
1999 Harley-Davidson
FXR2 FXR2
1999 Harley-Davidson
FXR3 FXR3
2000 Harley-Davidson
FXR4 FXR4
1993 Harley-Davidson
FXRS-Conv Low Rider Sport Convertible FXRS-Conv Low Rider Sport Convertible
1993 Harley-Davidson
FXRS-SP Low Rider Sport FXRS-SP Low Rider Sport
1993 - 1999 Harley-Davidson
FXST Softail Standard FXST Softail Standard
1999 Harley-Davidson
FXSTB Night Train FXSTB Night Train
1993 - 1999 Harley-Davidson
FXSTC Softail Custom FXSTC Softail Custom
1993 - 1999 Harley-Davidson
FXSTS Springer Softail FXSTS Springer Softail
1995 - 1997 Harley-Davidson
FXSTSB Bad Boy FXSTSB Bad Boy
1993 Harley-Davidson
Low Rider FXRS Low Rider FXRS
1998 Harley-Davidson
Road King EFI FLHR Road King EFI FLHR
1993 Harley-Davidson
Sport Glide FXRT Sport Glide FXRT
1994 Harley-Davidson
Tour Glide Classic FLTC Tour Glide Classic FLTC
1996 Harley-Davidson
Tour Glide Ultra Classic FLTCU Tour Glide Ultra Classic FLTCU

Fitment Disclosure
For reference only, please consult your owner’s manual to confirm your fitment.


General Safety Warning
Failure to follow the manufacturer's recommendations and requirements can cause product failure resulting in serious injury or death. While effort has been taken to collect accurate fitment information, 43 Moto accepts no liability for loss or damage resulting from errors or omissions. If you believe any of the information provided is erroneous, please email [email protected].

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