This International aluminum core with plastic tanks radiator has an oil cooler on the grill side with 11 1/2" centers and does not include a frame. This fits 2010, 2011, 2012 and 2013 NAVISTAR PROSTAR & TRANS STAR 8600. The core measurements are 35 1/8 x 40 1/2 x 2 1/16. NOTE: similar radiators may have oil cooler on the engine side. Please confirm you OEM part number before ordering. Also confirm location of your oil cooler.