K&N Spin-On Black Oil Filter w/Top Nut & Safety Wire Hole (KN-621)
- Designed for today's high-performance synthetic oils, unaffected by racing fuels
- Check valve prevents oil drainback and dry starts
- New pressure relief valve
- 17mm wrench nut for easy service (drilled for safety wire security)
- 50% thicker wall construction, stronger inner core, heavy base plate with double rolled seal
- TUV endorsed and TUV factory production monitored