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Service bulletin 400

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 id10023783
Published by NHTSA2008-02-01
Manufacturer's number400
Manufacturer's date2007-11-12
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

NHTSA's summary

JOHN DEERE - APPLIES TO : 6081H CHG 450 SERIES ENGINE TURBOCHARGER UPDATE WITH THE ALLISON TRANSMISSION. 07RG196 - PRODUCT IMPROVEMENT PROGRAM. MODEL YEAR UNKNOWN. *NJ

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
JOHN DEERE JOHN DEERE

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