Service bulletin SB 3121
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 | 10167371 |
| Published by NHTSA | 2019-11-08 |
| Manufacturer's number | SB 3121 |
| Manufacturer's date | 2019-10-07 |
| NHTSA component | ENGINE AND ENGINE COOLING |
NHTSA's summary
The Service Bulletin informs owners of model year 2019 J4500 model coaches equipped with an ISX, X12, or DD13 engine with E-fan to replace the existing T bolt charge air cooler ("CAC") clamps, MCI P/N: 19-04-0482, with a new clamp, MCI P/N: 19-04-0539, and to torque all CAC clamps on the coach to 70-80 In-lbs. instead of 90-110 In-lbs.
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
| MCI J4500 | 2019 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.