Name: Muffler
Brand: Auto-jet
SKU: FRLISBTL

Exhaust Systems

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Muffler

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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 #

FRLSDTP2

Part Type

Tailpipe

Brand

Freightliner

Auto-jet Part #

FRL3126T802

Part Type

Front Pipe

Brand

Freightliner

Auto-jet Part #

FRLRAD7007HD

Part Type

Radiator

Brand

Freightliner

Auto-jet Part #

FRLRAD7043

Part Type

Radiator

Brand

Freightliner

Auto-jet Part #

FRLTP02

Part Type

Tailpipe

Brand

Freightliner

Auto-jet Part #

FRLT8460

Part Type

Exhaust System Component

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.