top of page
Auto-jet Part #
FRLISBTL
Muffler
Freightliner
Muffler for Freightliner school buses with Cummins engines. ISB engine.
Model
Year Range
1998 & Up
Material
Outside Diameter
Overall Length
OEM Part Number
04-21079-000
United Muffler Equivalent
Also Known As
Related Parts
Auto-jet Part #
2250350
Part Type:
Muffler
Brand:
Ford
Auto-jet Part #
CUS-039-03
Part Type:
Muffler
Brand:
Hitachi
Auto-jet Part #
FORD50032E
Part Type:
Muffler
Brand:
Ford
Auto-jet Part #
STERFMMD
Part Type:
Muffler
Brand:
Ford
Auto-jet Part #
CUS-133-10
Part Type:
Muffler
Brand:
Freightliner
Auto-jet Part #
FRL457INT
Part Type:
Muffler
Brand:
Freightliner
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.
bottom of page