WenmarOpen by Wenmar Pro

Service bulletin TechTalk7516

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 id10179510
Published by NHTSA2020-09-09
Manufacturer's numberTechTalk7516
Manufacturer's date2020-08-31
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

TechTalk forum post where an incorrect part number was fixed to remove confusion among community members. EDIT: 06-93316-002 is the correct part number

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
FREIGHTLINER BUSINESS CLASS M22021

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