WenmarOpen by Wenmar Pro

Service bulletin TSB240049

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 id10252391
Published by NHTSA2024-04-02
Manufacturer's numberTSB240049
Manufacturer's date2024-03-04
NHTSA componentFUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of issue of Fuel filter loses torque and backs off the fuel filter head due to Inadequate thread engagement between the fuel filter adapter and fuel filter that causes external fuel leak.

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, Fuel system

Vehicles listed
CUMMINS B6.7
CUMMINS ISB6.7

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