31-2100 Reed Valve
incl. VAT
Chapter members save 5% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- S&S
- Part Number
- 31-2100
- OEM Reference
- —
- Pack Quantity
- Sold as ea
- Category
- 0920-CRANKCASES + PARTS
- VAT Rate
- 20%
About This Product
S&S breather reed valve assembly. It is +0.030 inch oversize for crankcases with machined or worn breather bores. The reed valve replaces the stock rotary breather. Reed petals improve oil return and reduce oil mist out of the breathers. Fit this when you are modernising the breathing system on a vintage or performance crankcase and correcting bore wear. Sold individually.
Manufacturer part number: 31-2100.
Fitment
34 models Cvo/Custom 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999 | Super Glide Screamin Eagle FXR2 |
| Harley-Davidson | 1999 | Super Glide Screamin Eagle FXR3 |
Dyna 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1993–1999 | Dyna Low Rider FXDL |
| Harley-Davidson | 1995–1999 | Dyna Super Glide FXD |
| Harley-Davidson | 1994–1999 | Dyna Super Glide Convertible FXDS-CON |
| Harley-Davidson | 1999 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 1993–1999 | Dyna Wide Glide FXDWG |
Fxr 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1993 | Low Rider Convertible FXRS |
| Harley-Davidson | 1993–1994 | Low Rider Custom FXLR |
| Harley-Davidson | 1993 | Low Rider Sport Edition (Fxrsl) FXRS-SP |
| Harley-Davidson | 1993–1994 | Super Glide FXR |
Softail 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1995–1997 | Bad Boy FXSTSB |
| Harley-Davidson | 1993–1999 | Fat Boy FLSTF |
| Harley-Davidson | 1993–1999 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 1993–1996 | Heritage Softail Special/Nostalgia FLSTN |
| Harley-Davidson | 1997–1999 | Heritage Softail Springer FLSTS |
| Harley-Davidson | 1999 | Softail FXST |
| Harley-Davidson | 1993–1998 | Softail Custom FXSTC |
| Harley-Davidson | 1998–1999 | Softail Night Train FXSTB |
| Harley-Davidson | 1993–1999 | Softail Springer FXSTS |
Touring 14 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999 | Electra Glide FLHT |
| Harley-Davidson | 1993–1998 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1996–1999 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 1993 | Electra Glide Sport FLHS |
| Harley-Davidson | 1996–1998 | Electra Glide Standard FLHT |
| Harley-Davidson | 1993–1997 | Electra Glide Ultra Classic FLHTCU |
| Harley-Davidson | 1996–1999 | Electra Glide Ultra Classic FLHTCUI |
| Harley-Davidson | 1995 | Electra Glide Ultra Classic Special Anniversary Edition FLHTCUI |
| Harley-Davidson | 1998–1999 | Road Glide FLTRI |
| Harley-Davidson | 1999 | Road Glide FLTR |
| Harley-Davidson | 1994–1999 | Road King FLHR |
| Harley-Davidson | 1996–1999 | Road King FLHRI |
| Harley-Davidson | 1998–1999 | Road King Classic FLHRCI |
| Harley-Davidson | 1993–1996 | Tour Glide Ultra Classic FLTCU |
Planning other changes? Find your model in the bike customiser.
Related Products
View all →
S&S
Crankcase Screen Oil
S&S
CASES 84-91 STOCK EVO
S&S
PLUG MAGNTC 1/2-20
S&S
REED VALVE
S&S
SCREEN OIL
S&S
MK-SERIES CRANKCASE TOURING M8
S&S
CASE ENG 92-99 STK BLK
Drag Specialties
C/CASE BREATHER CNTR BOLT
More from S&S
View all →
Adj. chromoly pushrod set. Shovel hydraulic
Pinion gear L77-89. Green
07-17 Softail 4-3/8" stroke flywheel assembly
Connecting rod retainer set
Flanged screw. cam drive gear sprocket retention
Non-adj. aluminum pushrod set for Knuckle
Flywheel assembly for 124" T-series 4-1/8" bore engines
Pinion gear 54-77. White
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.