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Auto-jet Part #
NAVDIFF1
Diffuser
IC Bus
Diffuser for IC Bus school buses with Navistar International engines. IC Gas 8.8L engine, Stainless Steel.
Model
Year Range
2020 & Up
Material
Stainless Steel
Outside Diameter
Overall Length
OEM Part Number
3817878C1
United Muffler Equivalent
Also Known As
Related Parts
Auto-jet Part #
NAVDIFF2
Part Type:
Diffuser
Brand:
Navistar International
Auto-jet Part #
GMDIFF
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Diffuser
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Auto-jet Part #
DAIMIT
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Diffuser
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Universal
Auto-jet Part #
FRLDIFF
Part Type:
Diffuser
Brand:
Freightliner
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TD300
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Universal
Auto-jet Part #
TD400 SS
Part Type:
Diffuser
Brand:
Universal
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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