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Auto-jet Part #
TD400OD
Tailpipe
Thomas Built
Tailpipe for Thomas Built school buses with Caterpillar and Cummins engines. CAT 3126 engine, 400 OD.
Model
Year Range
1998 & Up
Material
Outside Diameter
400
Overall Length
14"
OEM Part Number
6124-0385
United Muffler Equivalent
Also Known As

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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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