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Service bulletin 167-B2212-3

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 id10228940
Published by NHTSA2023-01-06
Manufacturer's number167-B2212-3
Manufacturer's date2022-12-21
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

L-SERIES RADIATOR HOSE CLAMP-COOLANT LEAK. The subject vehicles may exhibit coolant leaking from either the inlet or outlet radiator hose connections of the radiator or auxiliary transmission cooler. This leak may be due to reduced clamp retention at these 4 locations. If a coolant leak is identified coming from any of the 4 locations, this procedure provides installation instructions and directions to install the new style hose clamp at all 4 locations.

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

Engine

Vehicles listed
HINO L-SERIES2022 to 2023

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