Jeep YJ Wrangler 20gal Gas Tank &ndash; 1987-1995 &ndash; 0065 Made of High Density Cross Linking Polyethylene, a high strength material with superior puncture resistance. MTS replacement tanks are molded in one piece and have no welds or seams to split apart and will never rust through. Will not crack even at 160 degrees below zero Requires (2) emission valves w/ grommets - EMSV-2