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Service bulletin 0356-17

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 id10142124
Published by NHTSA2018-06-18
Manufacturer's number0356-17
Manufacturer's date2017-03-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

NHTSA's summary

(MCM) (GHG17)

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, Exhaust and emissions, Crankcase ventilation (PCV)

Vehicles listed
FREIGHTLINER 114SD2016, 2017, 2018
FREIGHTLINER 122SD2016 to 2018
FREIGHTLINER BUSINESS CLASS M22016 to 2018
FREIGHTLINER CASCADIA2016, 2017, 2018
WESTERN STAR 47002016, 2017, 2018
WESTERN STAR 49002016, 2017, 2018
WESTERN STAR 57002016, 2017, 2018
WESTERN STAR 69002016, 2017, 2018

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
0356-17 SPN2018-06-18. Service bulletin. (MCM) (GHG17)
0305-172018-06-18. Service bulletin. Diagnostic Tests
302-152018-06-18. Service bulletin. 302-15 Crankshaft Oil Seals