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Service bulletin IS-19905D

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 id10160852
Published by NHTSA2019-06-05
Manufacturer's numberIS-19905D
Manufacturer's date2019-05-20
NHTSA componentELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR; ELECTRICAL SYSTEM

NHTSA's summary

This instruction sheet explains how to install Delco Remy Alternators on H3 vehicles equipped with Electric Fan Drive

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, Alternator

Vehicles listed
PREVOST H3-412018 to 2019
PREVOST H3-452018 to 2019

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