Technical Service Bulletin SB 3127 — 2019 MCI D4505
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | SB 3127 |
| Manufacturer | |
| Vehicle | 2019 MCI D4505 |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
This Service Bulletin informs owners of model year 2019 D45CRTLE and J4500 model coaches equipped with a Delco 55 alternator, MCI P/N: 07-03-1322, to clean the alternators and reapply corrosion inhibitor every 6000 miles, using the following procedure as recommended by Delco.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.