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Service bulletin sbw8329 HVAC Fre

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 id10151529
Published by NHTSA2018-12-10
Manufacturer's numbersbw8329 HVAC Fre
Manufacturer's date2018-08-13
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

Service Bulletin: HVAC Fresh Air Intake Water Leak

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Cooling system

Vehicles listed
WESTERN STAR 47002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
WESTERN STAR 49002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
WESTERN STAR 57002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017

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

Other bulletins for the same vehicles and component
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sbw20182018-06-25. Service bulletin. sbw2018 Western Star 4800 and 4900 Radiator Mounting
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sbw09032018-06-11. Service bulletin. sbw0903 EPA10 Cummins ISX Air Intake Heat Shield Removal
sbw20232018-03-05. Service bulletin. sbw2023 Modine Copper/Brass Bolted Downflow Radiator Rebuilding
sb20802017-11-17. Service bulletin. sb2080 Australian CST M1400 Isolated Radiator Retrofit
20-182017-10-15. Service bulletin. 20-18 - Western Star 4800 and 4900 Radiator Mounting, Update?EPA10
SF519A2016-07-07. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
WSB-20-202014-02-13. Service bulletin. WESTERN STAR: INFORMATION PROVIDED REGARDING REPLACEMENT OF STANDARD RADIATOR MOUNT WITH AN ISOLATED MOUNT RADIATOR. *PE
SBW-20182013-01-16. Service bulletin. WESTERN STAR: RADIATOR MOUNTING. SOME EPA COMPLIANT WESTERN STAR 4900 VEHICLES EQUIPPED WITH 1700 SQ IN ALUMINUM RADIATORS, MANUFACTURED MARCH 2010 AND LATER, WITH SPECIFIC COMBINATION OF ENGINE OPERATING PARAMETERS, MAY HAVE RADIATOR FAILURES RESULTING IN A COOLANT LEAK DUE TO A CRACK IN THE COOLANT TUBE. LEAKS IN ANY OTHER PLACE OTHER THAN THE COOLANT TUBES DO NOT APPLY FOR THIS BULLETIN. *JS