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Service bulletin TSB-037

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 id10158633
Published by NHTSA2019-05-09
Manufacturer's numberTSB-037
Manufacturer's date2019-04-03
NHTSA componentEQUIPMENT; LATCHES/LOCKS/LINKAGES; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

NHTSA's summary

The manual shut off valves used on the Quantum VP trailers may over time become loose. During trailer use, the manual shut off valves may not remain in the position selected by the operator. A new handle has been developed with a detent feature to lock the valve in the open position.

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

Equipment and accessories, Fuel system, Latches and locks, Fuel tank

Vehicles listed
QUANTUM FUEL SYSTEMS LLC. VP LITE2018 to 2019

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