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Service bulletin 97120198000

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 id600194
Published by NHTSA1998-04-29
Manufacturer's number97120198000
Manufacturer's date1998-04-29
NHTSA componentPOWER TRAIN:CLUTCH ASSEMBLY

NHTSA's summary

CAMPAIGN BULLETIN ON CUSTOMER SATISFACTION CAMPAIGN TO INSTALL IMPROVED C5 CLUTCH FRICTION PLATES IN B 300(R), B 400(R), AND B 500(R) TRANSMISSIONS IN TRANSIT BUS AND TOUR COACH SERVICE. *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

Transmission and driveline, Clutch

Vehicles listed
ALLISON DIV ALLISON DIV1997

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