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Service bulletin 4427

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 id603358
Published by NHTSA1999-02-18
Manufacturer's number4427
Manufacturer's date1998-01-01
NHTSA componentWHEELS

NHTSA's summary

TECHNICAL INFORMATION CONCERNING SPARE WHEEL REMOVAL. *YC

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

Wheels

Vehicles listed
PORSCHE BOXSTER1997

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
No. 63-202021-08-04. Service bulletin. List of approved wheels, tires, and spacers for the 986 generation Boxster.