WenmarOpen by Wenmar Pro

Service bulletin RN-613-2

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 id10052563
Published by NHTSA2013-08-16
Manufacturer's numberRN-613-2
Manufacturer's date2013-06-25
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

PETERBILT: DUE TO DEF COOLANT AND PRESSURE LINES, FOR EMISSIONS COMPLIANT ENGINES AND CROSSOVER EXHAUST BEING INCORRECTLY ROUTED, MAY CAUSE FORMATION OF CRYSTALLIZATION IN DOSER TIP DURING HOT SHUT DOWN. NO MODEL OR MODEL YEARS LISTED. *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
PETERBILT PETERBILT

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