Auto-jet Part #
NAV-0030
Navistar International Muffler
Heavy Duty Muffler. 32" CASE; 20-1/2" FROM END TO CENTER OF OUTLET; 3-1/2" I.D. inlet; 4" O.D. outlet; 8-1/4 X 11-1/2" OVAL. 1664453C2". Fits APPLICATION: DT360 & DT466. Inlet 3-1/2" I.D. inlet; Outlet 4" O.D. outlet; Case 32" CASE; Shell 8-1/4 X 11-1/2" OVAL; 32" CASE, 20-1/2" FROM END TO CENTER OF OUTLET, 4" O.D. outlet, 3-1/2" I.D. inlet, 8-1/4 X 11-1/2" OVAL.
Model
Year Range
Material
Outside Diameter
Overall Length
OEM Part Number
1664453C2
United Muffler Equivalent
Also Known As
Grand Rock: 3917
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Provide your OEM# when ordering.
Exhaust parts vary by bus configuration even within the same model and year.
Your OEM number is the most reliable way to confirm correct fitment.