Fits Caterpillar PIPE AS-TA 2552900 NEWOne New Aftermarket Replacement Exhaust Pipe Fits Caterpillar (Fits CAT) 330 and 336 Series Excavators This aftermarket replacement exhaust pipe (Pipe AS TA) Fits Caterpillar (Fits CAT) 330 and 336 series hydraulic excavators. Identified by the OEM part as a Diesel Particulate Filter exhaust pipe with an inner diameter of 126. 9mm, this pipe is a direct fit replacement for the exhaust system on these heavy construction machines. Specifications Inner