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Service bulletin sbt4904

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 id10141870
Published by NHTSA2018-06-18
Manufacturer's numbersbt4904
Manufacturer's date2013-06-01
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT

NHTSA's summary

sbt4904 Gentech DEF Coolant-Flow Solenoid, Testing and Replacement

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, Equipment and accessories

Vehicles listed
THOMAS BUILT BUSES SAF-T-LINER C22018

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