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Service bulletin CYL-TSB-005

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 id10076238
Published by NHTSA2016-07-07
Manufacturer's numberCYL-TSB-005
Manufacturer's date2014-07-11
NHTSA componentFUEL SYSTEM, GASOLINE:STORAGE

NHTSA's summary

CNG CYLINDER VALVE ADAPTOR ALL QUANTUM TYPE 4 CYLINDERS USE A VALVE ADAPTER FITTING THAT THREADS DIRECTLY INTO THE CYLINDER BOSS. THIS VALVE ADAPTER FITTING IS LOCKED IN PLACE AND IS NOT EXPECTED TO MOVE FOR THE LIFE OF THE CYLINDER.

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

Fuel system

Vehicles listed
QUANTUM FUEL SYSTEMS LLC. CNG FUEL TANK

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