Twin Air ATV Air Filters
Coarse, open pore foam catches airborne dirt, grime and sand. fine open pore inner foam acts as a second filter to trap the smallest particles while ensuring maximum air passage. The most widely used air filters on the market.
| Model/Year | Part # |
| Honda | |
| TRX300EX (1993-2006) | 820663 |
| TRX400EX (1999-2006) | 820420 |
| TRX450 (2006) | 820664 |
| Suzuki | |
| LTZ250 (2004-2006) | 820659 |
| LTZ450 (2006) | 820660 |
| Polaris | |
| P325 (00-03) | 820657 |
| P330 Magnum 4WD (03-05) | 820657 |
| P330 Trail Boss (03-05) | 820657 |
| P335 (98-00) | 820657 |
| P400 Sportsman (01-05) | 820657 |
| P425 Xpedition (00-03) | 820657 |
| P500 Big Boss (98-99) | 820657 |
| P500 Diesel (99-01) | 820657 |
| P500 Magnum (99-02) | 820657 |
| P500 Scrambler (98-05) | 820657 |
| P500 Sportsman (96-05) | 820657 |
| P500 Sportsman 6x6 (00-05) | 820657 |
| P500 Xplorer (1997) | 820657 |
| P700 Sportsman (02-05) | 820657 |
| Yamaha | |
| YFZ350 Banshee (87-06) | 820662 |
| YFM350 Raptor (04-06) | 820435 |
| YFM350 Warrior (87-04) | 820435 |
| YFZ450 (04-06) | 820661 |
| YFM600 Grizzly (98-01) | 820435 |
| YFM660 Grizzly (02-06) | 820435 |
| YFM660 Raptor (01-05) | 820421 |
| YFM700 Raptor (06-07) | 820658 |