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Service bulletin 51-016

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 id11000749
Published by NHTSA2024-06-04
Manufacturer's number51-016
Manufacturer's date2024-05-11
Campaign id or software version51-016
NHTSA componentELECTRICAL SYSTEM
Manufacturer's systemEquipment

NHTSA's summary

Info Only Dealers/body builders installing liftgates onto K270E/K370E BEV trucks must use 24-volt liftgate systems. 12-volt liftgate systems are not compatible with vehicle electrical systems.

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
KENWORTH K2702010 to 2018
KENWORTH K2702022 to 2023
KENWORTH K3702010 to 2018
KENWORTH K3702023

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