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NHTSA ID Number: 10162097
Manufacturer Communication Number: TSB190059-050320
Summary
This Technical Service Bulletin describes the verification and resolution of water pump belt squeal or jump on front end accessory drive. A shorter water pump drive belt was introduced to increase belt tension, reduce belt squeal, and belt jumping teeth on idler.
2 Affected Products
Equipments
Technical Service Bulletin
| Technical Service Bulletin:
TSB190059 | Released Date: 03-May-2019 |
| Water Pump Belt Squeal or Jump on Front End Accessory Drive | |
Water Pump Belt Squeal or Jump on Front End Accessory Drive
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices, nor does it authorize TRP or Campaign actions.
Contents
Product Affected
- 7 CM2350 B135B
- 7 CM2350 B103
Option:
- WP97431
Description of Change
A new water pump drive belt part number is now available.
Reason for Change
A shorter water pump drive belt was introduced to increase belt tension, reduce belt squeal, and belt jumping teeth on idler.
Service Instructions
When water pump drive belt service interval or malfunction occurs, use new water pump drive belt part number in Table 1 below.
See Table 1 below.
Service Parts Availability
Service parts are available. See Table 1 for part numbers.
| Table 1, Service Parts | ||||
| Part Description | Existing Part Number | Obsolete | Superseded | New Part Number |
| V, Ribbed Belt | 4941303 | No | No | 4940003 |
Production Status
Implemented for production. See Table 2.
| Table 2, Production Information | ||
| ESN First | Build Date1 | Plant |
| 22326780 | 14 August 2018 | Darlington Engine Plant |
| 1Engine build date can be found on the engine dataplate. | ||
Document History
| Date | Details |
|---|---|
| Module Created | Module Created |
Last Modified: 03-May-2019
Technical Service Bulletin:
TSB190059
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