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Service bulletin KC-153

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 id10203928
Published by NHTSA2021-12-07
Manufacturer's numberKC-153
Manufacturer's date2021-11-01
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM; ENGINE

NHTSA's summary

SB - 230 - 001 V-MAC I To V-MAC II Conversion Kit

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, Engine, Equipment and accessories

Vehicles listed
MACK CH
MACK CL
MACK R

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