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Service bulletin SP16-321

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 id10082991
Published by NHTSA2016-10-19
Manufacturer's numberSP16-321
Manufacturer's date2016-09-15
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR; ELECTRICAL SYSTEM

NHTSA's summary

ON THE VEHICLES AFFECTED BY THIS BULLETIN, PROCEED TO THE REPLACEMENT OF THE ORIGINAL A/C TENSIONER AND ALTERNATOR IDLER BEARINGS WITH A FAG BRANDED UNIT. THESE FAG BEARINGS ARE OF HEAVIER DUTY CONSTRUCTION AND WILL OFFER EXTENDED DURABILITY COMPARED TO THE ORIGINAL ONES.

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

Electrical system, Equipment and accessories, Heating and air conditioning, Alternator

Vehicles listed
PREVOST X3-45 COACH2014 to 2016

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