WenmarOpen by Wenmar Pro

Service bulletin SB-49-26

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10036587
Published by NHTSA2011-04-04
Manufacturer's numberSB-49-26
Manufacturer's date2012-01-01
ReplacesSB-49-26-A
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

FREIGHTLINER: EXHAUST BELLOWS REPLACEMENT. HAVE A FAILED EXHAUST BELLOWS ON AN EPA07 ENGINE INSTALLATION, REPLACE WITH A NEW STYLE BELLOWS, AND TWO NEW MATCHING CLAMPS. MODELS CENTURY CLASS CONVENTIONAL, COLUMBIA CASCADIA, CORONADO, AND BUSINESS CLASS M2. *PE UPDATED 4/24/12. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Exhaust and emissions

Vehicles listed
FREIGHTLINER BUSINESS CLASS M22011
FREIGHTLINER CASCADIA2010
FREIGHTLINER CENTURY CLASS2010
FREIGHTLINER COLUMBIA2011
FREIGHTLINER CORONADO2010

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
14V0800002014-02-21. ENGINE AND ENGINE COOLING:ENGINE
12V0740002012-02-28. ENGINE AND ENGINE COOLING:ENGINE:DIESEL
11V1460002011-03-03. ENGINE AND ENGINE COOLING
10V3410002010-07-27. ENGINE AND ENGINE COOLING
09V4280002009-11-02. ENGINE AND ENGINE COOLING
20093162009-10-30. Engine
20092942009-10-14. Engine
09V4000002009-10-08. ENGINE AND ENGINE COOLING
09V3660002009-09-23. ENGINE AND ENGINE COOLING
20092702009-09-22. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SB83-1372022-04-01. Service bulletin. Revised Freightliner Service Bulletin for ParkSmart Eberspaecher Auxiliary Heater Service. This bulletin replaces the version dated May 2015. The note in General Information has been revised to include New Cascadia. Espar information has been changed to reflect a company name change to Eberspaecher.
FAB1532021-05-18. Service bulletin. Freightliner Action Bulletin FAB153 New Harness Highway for Cascadia
SB49342021-05-10. Service bulletin. DEF Tank Coolant Valve O-Ring Kit
WI21-0092021-04-24. Service bulletin. Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021.
TechTalk80712021-03-02. Service bulletin. Tech Talk continued discussion on dd15 fuel pump timing.
SB54-3082021-02-26. Service bulletin. Freightliner Service Bulletin for Programming Chassis Electronic Control Units (ECUs) With DiagnosticLink.
TechTalk80712021-02-02. Service bulletin. Tech Talk discussion on dd15 fuel pump timing.
WI21-0012021-01-26. Service bulletin. Warranty Information Letter for Detroit New Service Replacement Engine SRT Update. While validating Standard Repair Times (SRTs) for Detroit's new Gen 5 engine series, DTNA discovered an error in a pre-Gen 5 SRT for the New Service Replacement Engine Program. As a result, DTNA re-studied the SRT and concluded that time for removing/re-installing multiple components (e.g., exhaust manifold/turbo, engine sensor harness, rocker arm assemblies, etc.) should not be included.
18SP7452020-12-08. Service bulletin. Special Publication Letter for EPA07 EPA10 Three-Filter Fuel System DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit
18SP7442020-12-08. Service bulletin. Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.