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Service bulletin sb2079

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 id10141837
Published by NHTSA2018-06-18
Manufacturer's numbersb2079
Manufacturer's date2014-05-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

NHTSA's summary

sb2079 20-79 - Premature Belt Wear on Cummins ISCISL with FEPTO

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, Drive belts

Vehicles listed
FREIGHTLINER 108SD2018
FREIGHTLINER 114SD2018
FREIGHTLINER BUSINESS CLASS M22018

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

Other bulletins for the same vehicles and component
18SP7362020-10-01. Service bulletin. Detroit Diesel Special Publication informing about Heavy Duty Friction Style Belt Tensioner Kit. This heavy duty friction style belt tensioner kit contains the belt tensioner and two M10 bolts to correctly pin the friction style belt tensioner. The M10x80mm bolt is used to pin the engine cooling fan drive arm. The M10x50mm bolt is used to pin the engine accessory drive arm.
18TS4Rev DD2019-04-01. Service bulletin. 18TS4Rev DD Heavy Duty Platform Accessory Drive Belt