# Service bulletin TIB\-42\-41

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: 10030408
- Published by NHTSA: 2009\-09\-29
- Manufacturer's number: TIB\-42\-41
- Manufacturer's date: 2008\-12\-03
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)

## NHTSA's summary

KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. TOP TANK REPLACEMENT FOR C500 AND W900 WITH ISX; FIELD CAMPAIGN. EARLY DESIGN TOP TANKS ON 1430 SQUARE INCH RADIATORS FOR 2007 EMISSIONS COMPLIANT ENGINES CAN CREATE COOLANT PUMP AND/OR EXHAUST GAS RECIRCULATION \(EGR\) COOLER FAILURES. \*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, Exhaust and emissions, Cooling system, EGR valve, Radiator

## Vehicles listed

- 2006 to 2007 KENWORTH C500
- 2006 to 2007 KENWORTH W900

JSON: [/v1/bulletins/10030408](/v1/bulletins/10030408)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20TIB-42-41&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10030408&vehicle=Service%20bulletin%20TIB-42-41)