KNH0761 Muffler Silencer Fits for Case CX135SR. OTHER PARTS AVAILABLE (NEED TO BE PAID EXTRA): U BOLT 4252533, PIPE EXHAUST 7023241, CLAMP 4257014. MOTTROL USA EXCAVATOR PARTS DEPOT. YOUR BEST SOURCE FOR OEM QUALITY EXCAVATOR PARTS. For the parts described with both part number and application machine model or engine model, please make sure to order according to the part number, the application machine model or engine model is just for reference.