Premium Guard Cabin Air Filter PC4856 | Fits 2004-2001 Nissan Frontier, 2004-2000 Nissan Xterra Superior Engine Protection and Enhanced Engine Performance with up to 99% cleaner air before it flows into the car's engine. Maximum filtration area without affecting the free-flow of air into the passengers cabin. Compatible with Nissan Frontier and Xterra. Precisely designed, engineered, and tested to meet and exceed all OE cabin air filter requirements. Premium Guard cabin air filters are a perfect fit as per the OE design Replaces 999M1-VP002, B7200-3S500, B727C-89925, CF11180, CAF1731, C16110, and 24856 cabin air filters