GMC Sierra Automatic Transmission Oil Coolers

Although previously the name “Sierra” numerously appeared in the GMC history, the first generation of the GMC Sierra appeared on the market in 1998, and this full-size pickup is available for sale up to the present day. Till 2007, when General Motors introduced the second generation of the Sierra, this vehicle was offered with both manual and automatic gearboxes. Though, after that year, the 5-speed manual transmission option was discontinued. In 2014, the third generation of the Sierra appeared in the dealerships and the transmission choices were 6- and 8-speed automatic, mated to a series of EcoTech gasoline or Duramax diesel engines.

The transmission of your Sierra consists of numerous parts which operate in tight relation with each other and allow the engine perform at its best. To ensure safe operation of the automatic transmission, there is oil, which not only lubricates the rotating and friction parts, but also eliminates excessive heat away from the system. The oil has to be cooled down so that the components do not get overheated. If you're about to restore the cooling system of your truck, you may be interested in our GMC Sierra automatic transmission oil coolers & components. We ensure precise fit and long-lasting service of the parts.