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Service bulletin C2605A

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 id10237226
Published by NHTSA2023-06-05
Manufacturer's numberC2605A
Manufacturer's date2023-05-02
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Campaign is being issued to address potential external coolant leaks resulting in water pump replacements on certain X12 CM2350 X119B and CM2450 X137B in DTNA chassis. This field action authorizes the replacement of the secondary drive belt, Cummins PN 6326092. 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

Vehicles listed
CUMMINS X12

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