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Service bulletin TSB-046

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 id10233479
Published by NHTSA2023-05-23
Manufacturer's numberTSB-046
Manufacturer's date2023-05-22
NHTSA componentFUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; EQUIPMENT

NHTSA's summary

The 1 inch fuel pipe ORFS joints in the VP Trailer trunk pipes may develop leaks and continue to leak even after replacement of the O-ring seal. The cause of the leak concern may be due to an improper O-ring seal, manufacturing concerns with the ORFS fitting, or manufacturing concerns with the ORFS flange.

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, Fuel tank

Vehicles listed
QUANTUM FUEL SYSTEMS LLC. VP LITE2022

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