- Pro Series filters literally use the world's finest materials: German paper, English glue and Japanese zinc steel that meet or exceed OEM requirements.
- All necessary gaskets and o-rings are included with most filters.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1987-1999 | Yamaha | Big Bear 350 YFM350FW 4x4 | |
| 1996-1999 | Yamaha | Big Bear 350 YFM350U | |
| 2000-2002 | Yamaha | Big Bear 400 YFM400 | |
| 2004 | Yamaha | Big Bear 400 YFM400 | |
| 2000-2002 | Yamaha | Big Bear 400 YFM400F 4x4 | |
| 2004 | Yamaha | Big Bear 400 YFM400F 4x4 | |
| 2003 | Yamaha | Big Bear 400 YFM400FW 4x4 | |
| 2003 | Yamaha | Big Bear 400 YFM400N | |
| 1987-1995 | Yamaha | Moto 4 YFM350ER | |
| 1987-2002 | Yamaha | Warrior 350 YFM350X | |
| 1995 | Yamaha | Wolverine 350 YFM350FX 4x4 | |
| 1997-2005 | Yamaha | Wolverine 350 YFM350FX 4x4 | |