106-6012 S&S Steel breather valve. +.030" OD for Harley-Davidson
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Specifications
- Brand
- S&S
- Part Number
- 106-6012
- OEM Reference
- —
- Pack Quantity
- Each
- Category
- Breather Valves
- VAT Rate
- 20%
About This Product
S&S steel breather valve with +.030 inch oversize outside diameter. Fits 1936 to 1947 Big Twin with worn crankcase breather bores. It saves original cases that would otherwise need extensive repair. The elongated holes increase vacuum duration, pull oil from the top end, and improve scavenging. Use steel breather valve spacers. Mixing steel valves with plastic spacers causes premature failure.
Manufacturer part number: 106-6012.
Fitment
8 models36-47 Big Twin
Flathead 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1937–1945 | Flathead U-1200 |
| Harley-Davidson | 1938–1947 | Flathead UH-1300 |
| Harley-Davidson | 1936–1947 | Flathead UL-1200 |
| Harley-Davidson | 1940–1946 | Flathead ULH-1300 |
Knucklehead 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1936–1947 | Knucklehead E-1000 |
| Harley-Davidson | 1940 | Knucklehead EL-1000 |
| Harley-Davidson | 1937–1947 | Knucklehead F-1200 |
| Harley-Davidson | 1936–1946 | Knucklehead FL-1200 |
Planning other changes? Find your model in the bike customiser.
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