Service bulletin TSB120053-042720
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 | 10136552 |
| Published by NHTSA | 2018-05-14 |
| Manufacturer's number | TSB120053-042720 |
| Manufacturer's date | 2018-04-30 |
| NHTSA component | ENGINE AND ENGINE COOLING:EXHAUST SYSTEM |
NHTSA's summary
This Technical Service Bulletin announces a wide valve camshaft lobe and valve rocker lever roller release to improve the robustness of the ISX valve camshaft. The camshaft lobe and rocker lever rollers were widened to reduce the contact stress between the camshaft and rocker lever rollers. This is an update to a previously submitted communciation.
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, Exhaust and emissions
| CUMMINS ISX15 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.