Fuel tank safety valve
OEM part numberMR512157Order this one
Safety notice — Fuel system.
This affects a safety-critical system. Reference material only: for safety-critical work, consult a qualified mechanic.
Esto afecta un sistema crítico para la seguridad. Material de referencia únicamente: en trabajos críticos para la seguridad, consulte a un mecánico calificado.
Community consensus. This entry is not backed by factory documentation — treat its values and steps as a starting point, not as if they came from the factory manual.
Consenso de la comunidad. Esta entrada no se apoya en documentación de fábrica — tome los valores y los pasos como punto de partida, no como si vinieran del manual de fábrica.
A valve on top of the fuel tank that lets the tank breathe while keeping liquid fuel from escaping — the part that is meant to seal when the truck is tilted or overfilled. When it stops sealing, the classic sign is a smell of petrol with a full tank, worst when the truck is parked nose-up on a slope, and sometimes a wet patch under the rear. This is the fuel system and a raw-fuel leak is a fire risk, so treat it as a stop-driving fault and have a qualified mechanic find which valve or hose is leaking before you buy anything. The count is not the same across the generation — the earliest trucks carry more than one of this valve where the later trucks carry one, so confirm how many yours takes for your exact year before ordering. The number and the fitment come from a Montero specialist's catalogue and an independent parts catalogue, cited below — good evidence for what a part number is and what it fits, and not factory literature, so read every figure on this page as the catalogue's claim rather than as a service-manual specification.
Sources
- Luso Overland — MONTERO Gen3 Fuel Tank Safety Valve: the Mitsubishi number MR512157, the Gen3 fitment, and the note that the 2001 trucks take more than one where the later trucks take oneVendor catalogue
- YoshiParts — Mitsubishi OEM MR512157 ("Valve, Fuel Tank Safety") for Pajero/Montero V68W (3rd Gen, 1999-2006), independent of the specialist aboveVendor catalogue