ACDelco GM Original Equipment Engine Crankcase Breather Elements are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These filter elements prevent abrasive particles from entering the crankcase and aid in smooth operation of the engine system. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional. ? <bold>WARNING:</bold> Cancer and Reproductive Harm - <Underline>https://www.P65Warnings.ca.gov</Underline> Prevents abrasive particles from entering the crankcase Helps engine run smoothly Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors. GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle GM regularly updates production and service part designs to integrate new materials and technologies Package Dimensions: 5.1 x 5.1 x 0.4 inches Package Weight: 0.01 lb Package Quantity: 1 National Popularity Code : W Outside Diameter: 4.5 IN Programming Required: NO Vintage Part Indicator: N