WenmarOpen by Wenmar Pro

Service bulletin PB1506-3

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 id11016192
Published by NHTSA2025-04-01
Manufacturer's numberPB1506-3
Manufacturer's date2025-04-01
NHTSA componentENGINE

NHTSA's summary

Precedent S-600, S-700, S-610M & S-610DE units with TK488CR engine. Square EGR Cooler Cleaning 2030799 (before June 2021)

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

Vehicles listed
THERMO KING PRECEDENT S-600
THERMO KING PRECEDENT S-610DE
THERMO KING PRECEDENT S-610M
THERMO KING PRECEDENT S-700

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