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Service bulletin SI-08-50-1

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 id10032676
Published by NHTSA2010-04-28
Manufacturer's numberSI-08-50-1
Manufacturer's date2008-01-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

DETROIT DIESEL: SERIES 50 DIESEL VALVE LASH, JAKE BRAKE LASH AND CAM TIMING SPECS. NO MODEL OR MODEL YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
DETROIT DIESEL SERIES 502004

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