S&S Black Oil Filter 31-4101 for HD Sportster Evolution & Shovelhead
Engineered to match or exceed original specifications, this premium black oil filter provides superior protection for your motorcycle's engine. Featuring an advanced 30-micron filtration rating, it effectively captures smaller particles than standard stock filters while maintaining low restriction to ensure optimal oil flow.
Designed with a direct bypass system, bypassed oil never routes over dirty filter media, ensuring clean and reliable engine lubrication. The compact, smaller-diameter housing allows for effortless installation and clearance across compatible Evolution, Sportster, and Buell models.
Key Features
| Brand | S&S CYCLE |
| Manufacturer | S&S CYCLE |
| Part Number | 31-4101 |
| Product Type | Oil Filter |
| Color | Black |
| Micron Rating | 30µ |
| Bypass Type | Direct bypass (does not pass over dirty media) |
| Oil Flow | Low restriction |
| Compatible Fitment | 1984-1999 HD Evolution, 1986-2016 HD Sportster, 1991-2002 Buell |
| Quantity | Sold Each |
| Estimated Shipping Weight | 0.4 kg |
Highlights
- High-efficiency 30-micron filtration captures finer particles than OEM filters
- Direct bypass design prevents dirty media contamination during bypass operation
- Low-restriction construction maintains continuous, optimal oil flow
- Slimmer profile diameter offers easier installation and clearance
Compatibility
Compatible with the following motorcycle models:
- 1984–1999 Harley-Davidson Evolution®
- 1986–2016 Harley-Davidson Sportster®
- 1991–2002 Buell®
- Shovelhead Models
Frequently asked questions
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