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Service bulletin SB20-58

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 id10197272
Published by NHTSA2021-06-14
Manufacturer's numberSB20-58
Manufacturer's date2016-01-01
NHTSA componentPOWER TRAIN

NHTSA's summary

Early EPA07 QLD Radiator Replacement. As part of the changes made for early production EPA07 engines, the transmission oil cooler was moved into the radiator, and transmission oil cooler lines equipped with Gates Quick-Detach (QLD) connectors were fitted.

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

Transmission and driveline

Vehicles listed
FREIGHTLINER FREIGHTLINER

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