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Auto-jet Part #
OVMHIHDT
Muffler
Navistar International
Muffler for Navistar International school buses.
Model
Year Range
2005 & Up
Material
Outside Diameter
Overall Length
OEM Part Number
1660539C91, 2029922C91
United Muffler Equivalent
Also Known As
Grand Rock: HIHM6A | Truckex: 9753
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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.
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