Service bulletin ATC2666A
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 | 10238840 |
| Published by NHTSA | 2023-07-07 |
| Manufacturer's number | ATC2666A |
| Manufacturer's date | 2023-06-29 |
| NHTSA component | ENGINE AND ENGINE COOLING |
NHTSA's summary
This ATC is being issued to replace B6.7G CMOH6.0 E5 cylinder head in certain King Long buses operating in Mexico that could present low cylinder compression due to valve or valve seat leakage. This ATC authorizes approved service locations to replace the cylinder head where appropriate. Please review the qualifying parameters below before beginning any work. The new replacement cylinder head contains a valve rotators.
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
| CUMMINS B6.7 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.