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Service bulletin ENP-616

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 id10128758
Published by NHTSA2018-02-12
Manufacturer's numberENP-616
Manufacturer's date2018-01-23
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

Temporary CNG fuel supply "Pony Tanks" made prior to 2017 exceeds certain fuel inlet pressure requirements for certain natural gas engines. The 24409010 Pony Tank retrofit includes a new pressure regulator and a high pressure filter to improve existing and older Pony Tanks for the entire 24400000 and 24401000 family of Agility Pony Tank systems.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Vehicles listed
AGILITY EZ PACK HEIL TAILGATE
AGILITY HEIL ROOFMOUNT
AGILITY ROOFMOUNT CNG FUEL SYSTEM
AGILITY SIDE-MOUNT CNG FUEL
AGILITY SIDEMOUNT CNG FUEL SYSTEM
AGILITY FUEL SYSTEMS CNG FUEL SYSTEM
AGILITY FUEL SYSTEMS CNG FUEL TANK
AGILITY FUEL SYSTEMS LNG FUEL SYSTEM

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