Premium Guard PA4878 air filter for the 1997-2010 Ford F-150 4.2L and other vehicles is a round air filter that cleans the air before it enters the engine.
A clogged filter can show up as sluggish acceleration, or as a media face packed with dirt when you look at it with the engine off. A dirty mass airflow sensor or worn spark plugs can also be behind those signs, so find the cause before you swap parts.
It is also a direct-fit air filter for the 1997-2009 Ford F-250 4.6L and the 1996-2004 Ford Mustang 4.6L.
Fit and size
Build and materials
One air filter. Each vehicle takes one.
Is this the right Ford F-150 air filter for a 1997-2010 Ford F-150 4.2L?
Yes, Premium Guard PA4878 is listed for the 1997-2010 Ford F-150 4.2L (V6-4.2L). If your truck or car isn't named on this page, look it up on the Buyer's Guide tab.
Is this F-150 air filter also right for a 1997-2008 Ford F-150 4.6L?
Yes, the PA4878 is also listed for the 1997-2008 Ford F-150 with the V8-4.6L engine. Each truck takes one filter.
Can I wash and reuse this Premium Guard air filter?
No, Premium Guard PA4878 is not reusable. It has cellulose filter media, so replace it when it is dirty instead of cleaning it.
What is the outside diameter of the PA4878 air filter?
The outside diameter is 190 mm (7.49 in). This filter body is round.
How clean is the air this air filter lets into the engine?
Up to 99% cleaner air flows into the engine. The high-capacity media removes dust and other debris.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
