Service bulletin C1638B
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 | 10086623 |
| Published by NHTSA | 2016-12-20 |
| Manufacturer's number | C1638B |
| Manufacturer's date | 2015-06-16 |
| NHTSA component | FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP |
NHTSA's summary
THIS CAMPAIGN IS TO REPLACE THE LUBRICATING OIL FILTER BYPASS VALVE. THE NEW BYPASS VALVE DESIGN HAS MORE EFFECTIVE SEALING CAPABILITY AND PROVIDES BETTER PROTECTION TO FUEL PUMP LUBRICATED COMPONENTS. THIS IS A REVISION TO A PREVIOUS COMMUNICATION.
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
Fuel system, Fuel pump
| CUMMINS ISX12 | |
|---|---|
| CUMMINS ISX15 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.