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Service bulletin ATC2685 A

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 id10241941
Published by NHTSA2023-09-06
Manufacturer's numberATC2685 A
Manufacturer's date2023-08-31
NHTSA componentENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL

NHTSA's summary

This ATC is being issued to address potential fuel shutoff valve failures on certain ISX12N CM2380 X120B engines. This document authorizes Cummins certified locations to replace fuel shutoff valve part number 5537854 or 5467826 with an improved fuel shutoff valve. This is an update to the previously submitted communication.

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 ISX12

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