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Service bulletin SB 484

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10180803
Published by NHTSA2020-10-07
Manufacturer's numberSB 484
Manufacturer's date2020-09-17
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This Service Bulletin informs affected owners that on certain D45CRTLE and J4500 model coaches equipped with Cummins X12 engines, the top alternator power and ground cables may potentially come in contact with the edge of the clamp mounting bracket and that a shim should be added between the mounting bracket and the clamp. MCI is providing the parts and labor at no cost to the owners.

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

Electrical system

Vehicles listed
MCI D45 CRT LE2020
MCI J45002018 to 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.