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Service bulletin SP18-39C

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 id10184672
Published by NHTSA2020-12-24
Manufacturer's numberSP18-39C
Manufacturer's date2020-12-22
NHTSA componentFUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING

NHTSA's summary

SCR CONVERTER REPLACEMENT - AFTERTREATMENT SYSTEM Revision: C Expiration date removed 12/22/2020

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, Fuel system

Vehicles listed
VOLVO BUS 97002017 to 2019

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