25325-79 Steel Breather Valves
Fits: Big Twin | Dyna | FX | FXR | Softai…
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Specifications
- Brand
- S&S Cycle
- Part Number
- 234926
- OEM Reference
- 25325-79
- Pack Quantity
- Each
- Category
- Oil Pump
- VAT Rate
- 20%
About This Product
This S&S Cycle steel breather valve is a precision-engineered replacement for Big Twin engines, designed to replace OEM 25325-79. It fits a wide range of models including Dyna, FXR, Softail, and Touring bikes. Whether you are replacing a worn steel valve in an older 1936–1989 engine or upgrading the plastic valve in a 1990–1999 Evolution, this steel version offers superior durability and performance. Proper crankcase breathing is essential for preventing oil leaks and maintaining engine efficiency. S&S manufactures these to exacting tolerances, ensuring your engine can breathe freely even under high-load conditions. It’s a must-have for any mechanic performing a bottom-end service who wants to ensure the longevity and cleanliness of their Harley’s oiling system.
Fitment
29 modelsBig Twin | Dyna | FX | FXR | Softail | Touring
Fxr 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984 | DISC GLIDE FXRDG |
| Harley-Davidson | 1982–1984 | LOW RIDER FXRS |
| Harley-Davidson | 1983–1984 | SPORT GLIDE FXRT |
| Harley-Davidson | 1982–1983 | SUPER GLIDE FXR |
Softail 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1981–1982 | BLACKLINE FXS |
| Harley-Davidson | 1983–1984 | BREAKOUT FXSB |
| Harley-Davidson | 1984 | SOFTAIL STANDARD FXST |
| Harley-Davidson | 1981–1984 | SUPER GLIDE FXE |
| Harley-Davidson | 1981–1982 | SUPER GLIDE FXB |
| Harley-Davidson | 1981–1984 | SUPER GLIDE FXEF |
| Harley-Davidson | 1983 | SUPER GLIDE FXDG |
| Harley-Davidson | 1981–1984 | WIDE GLIDE FXWG |
Touring 17 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984 | Classic Tour Glide Classic (1984) Tour Glide Classic FLT Classic |
| Harley-Davidson | 1984 | Electra Glide (1984) Electra Glide FLHT |
| Harley-Davidson | 1983–1984 | ELECTRA GLIDE CLASSIC FLHTC |
| Harley-Davidson | 1981–1982 | ELECTRA GLIDE CLASSIC WITH SIDECAR FLHC WITH SIDECAR |
| Harley-Davidson | 1983–1984 | ELECTRA GLIDE CLASSIC WITH SIDECAR FLHTC WITH SIDECAR |
| Harley-Davidson | 1984 | ELECTRA GLIDE SPECIAL WITH SIDECAR FLHX WITH SIDECAR |
| Harley-Davidson | 1981–1984 | ELECTRA GLIDE SPORT FLHS |
| Harley-Davidson | 1981–1984 | ELECTRA GLIDE STANDARD SHRINE FLH SHRINE |
| Harley-Davidson | 1981–1982 | HERITAGE FLH-HERITAGE |
| Harley-Davidson | 1981–1982 | Heritage Classic FLHC |
| Harley-Davidson | 1981–1984 | Street Glide® FLHX |
| Harley-Davidson | 1981–1983 | TOUR GLIDE FLT |
| Harley-Davidson | 1980–1984 | TOUR GLIDE CLASSIC FLTC |
| Harley-Davidson | 1984 | TOUR GLIDE CLASSIC WITH SIDECAR FLTC WITH SIDECAR |
| Harley-Davidson | 1983 | TOUR GLIDE WITH SIDECAR FLT WITH SIDECAR |
| Harley-Davidson | 1983 | TOURING ELECTRA GLIDE STANDARD FLHT |
| Harley-Davidson | 1981–1984 | TOURING REVIVAL FLH |
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