top of page
Auto-jet Part #
85-0045
Muffler
Thomas Built
Muffler for Thomas Built school buses with Cummins engines. B-Series Cummins engine, 3-1/2" inlet, 4" outlet.
Model
Year Range
1994 & Up
Material
Outside Diameter
8-1/2"
Overall Length
36"
OEM Part Number
6124-0027
United Muffler Equivalent
Also Known As
Shuttlerworth: D13-0110 | Truckex: 4233
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