Signs of wear for an engine air filter include but are not limited to:
- Reduced fuel economy
- Reduced engine peak power

GM Part #20857930
ACDelco Part #A3178C
ACDelco GM Original Equipment Engine Air Filters are designed, engineered, and tested to rigorous standards, and are backed by General Motors. An engine air filter is a vital maintenance component designed to keep your motor breathing easily by blocking dirt, dust, and abrasive particles from entering the intake manifold. If you are experiencing sluggish vehicle acceleration or rough idling, replacing a clogged filter restores unrestricted clean airflow and helps maintain the correct air-to-fuel ratio for efficient combustion. These filters have a tight seal that helps keep unfiltered air from entering your vehicle's passenger cabin before trapping airborne particles which protects sensitive mass airflow sensors from dust buildup and reduces the risk of unexpected misfires. Additionally, the advanced media within the filter is designed for minimal airflow restriction and to help enhance engine performance and efficiency, making them an essential component for daily driving through dusty urban environments or unpaved rural roads. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)
Please visit our warranty page on Gmparts.com for full warranty details.