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Service bulletin 3773

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 id10018525
Published by NHTSA2006-01-05
Manufacturer's number3773
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

NHTSA's summary

TURBOCHARGER HOSE CLEARANCE ON MEDIUM DUTY MODELS C65 C75 C85. *TT

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, Turbocharger or supercharger

Vehicles listed
CHEVROLET KODIAK2003 to 2005
GMC TOPKICK2003 to 2005

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