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Service bulletin 18TL11 DD5 DD8 I

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 id10151555
Published by NHTSA2018-12-10
Manufacturer's number18TL11 DD5 DD8 I
Manufacturer's date2018-08-31
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

DD5/DD8 Injector Breakout Box Overlay DPI930E18001

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

Fuel system

Vehicles listed
FREIGHTLINER BUSINESS CLASS M22016 to 2018
THOMAS BUILT BUSES SAF-T-LINER C22016 to 2018

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