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Service bulletin TSB201901

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 id10167414
Published by NHTSA2019-11-12
Manufacturer's numberTSB201901
Manufacturer's date2019-11-07
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

We have identified that the stub shafts on the front idler on OLB840 trailers with the hydraulic tensioning for the live bottom belt have a portion of the grease journal that needs to be plugged to grease the front idler bearings correctly.

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
TRAIL KING FIFTH-WHEEL LIVE BOTTOM2017 to 2020

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