WenmarOpen by Wenmar Pro

Service bulletin SB 234020

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 id10025565
Published by NHTSA2008-08-21
Manufacturer's numberSB 234020
Manufacturer's date2008-05-02
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

NHTSA's summary

DIFFERENTIAL PRESSURE SENSOR HOSES AND CLAMPS - NON-CATALYZED DIESEL PARTICULATE FILTER (DPF) USED ON MRU AND LEU MODELS. (DOES NOT APPLY TO MACK TRUCKS AUSTRALIA). *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, Cooling system

Vehicles listed
MACK LEU2008
MACK MRU2008

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