# Service bulletin C2602A

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.

- Type: Service bulletin
- NHTSA id: 10237225
- Published by NHTSA: 2023\-06\-05
- Manufacturer's number: C2602A
- Manufacturer's date: 2023\-05\-02
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This In\-Shop 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 In\-Shop Campaign does not reimburse for any SRTs, nor parts, except those that are listed. It is recommended, but not required, that this Field Action be performed as part of another Cummins warrantable repair event to allow reimbursement for charges such as travel, troubleshooting, or access issues that are outside the scope of this document. This is an update to the previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237225-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237225-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- CUMMINS X12

JSON: [/v1/bulletins/10237225](/v1/bulletins/10237225)

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