The 17.5 Inch Caterpillar Off-Road Diesel Particulate Filter with a 14.17 Inch Diameter is a durable and reliable exhaust emission solution for off-road Caterpillar equipment. Constructed from stainless steel and manufactured according to OE technology, this filter is designed to match OE performance and fits most Caterpillar off-road makes and models. With a net weight of 36.04 kg and no need for clamps or gaskets due to a patent from CAT, this filter offers practical and efficient exhaust emission control. Direct OE replacement numbers include 20R3666, 3900637, 3900673, 3900675, and OTR46011.