A Hummer is a substantial investment - so ensure the long life of your investment by using a genuine Hummer air filter. Hummer owners are notorious for enjoying testing their vehicles against the elements. But every engine needs a little protection against the damage that dirt and moisture can wreak. A Hummer air filter's main job is to shield the engine from dust and other particulate matter that is sucked into the air intake system. A dirty, clogged air filter will slow down your Hummer's performance and gas mileage, while damaging its engine. Over time, a dirty air filter will mean a shortened engine life because of the poor air intake. Winter time, in particular, is hard on engines because of the moisture and windy conditions, which raise the levels of particulates. For that reason, change your Hummer air filter after a tough winter, in addition to following the generally recommended schedule of once every 10,000 miles or once or twice a year. Replacing your Hummer air filter is easy - it only takes a few moments. Why spend money at a dealership, which will charge you substantial fees for parts and labor? By ordering our Hummer air filters, you will be guaranteed that our air filters meet OE requirements for filter media and durability.