with 24.8125in x 18.125in x 4.3125in Core with 4.0625in Inlet with 3.0625in Outlets Eng Mfr: Mack
2004 Mack MR equipped with 11.9L 6 Diesel, 11.9L 6 CNG
with 24.8125in x 18.125in x 4.3125in Core with 4.0625in Inlet with 3.0625in Outlets Eng Mfr: Mack