NEW Muffler, part number 164-7351 , for a Caterpillar 311B , 312B , 312BL hydraulic excavators serial #
9FS1-552
2KW1-196
6SW1-373
9NW1-206
Machines w/ 3054 engine.
Measures: 24.5 inches long, 8 3/8 in wide, inlet and outlet pipe are 3 1/4 in.
Note. It is as pictured. Does not come w/ exhaust pipe ( 9s7534) or clamps. This is for Early serial # machines.
