WenmarOpen by Wenmar Pro

Service bulletin KC-909

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 id10210073
Published by NHTSA2022-04-07
Manufacturer's numberKC-909
Manufacturer's date2022-03-16
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Mack Chassis - Discharge Recirculation Valve (DRV) - Technical Service Bulletin M-258-029 , Engine Turbocharger Compressor Bypass Valve Deletion Kit, Installation

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
MACK MACK

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