The S&S Cycle oil filter has a slightly smaller diameter than the standard filters to make them easier to remove and install
- Designed with a direct bypass valve that routes bypass oil directly to the filter outlet, minimising the amount of contaminants that enter the engine with the unfiltered bypass oil
- The nominal particle separation size is smaller than the standard filters, while the resistance to oil flow is almost the same
- Drain plug O-ring included in the filter
- Made in the USA
- S&S Cycle OEM # 31-4104A
Note
Fits Harley-Davidson Twin Cam & Milwaukee-Eight