My Vanagon vapor tank seems okay, but I'm doing some fuel system work. Should I replace these float valves preventatively?

That's smart thinking! While these float valves are built tough and rarely fail completely, they can become brittle with age. If the nipple breaks off during servicing, it can complicate your repairs. Since they are a critical component of your fuel recirculation system and two are needed per vehicle, many customers choose to replace them proactively during other fuel system maintenance to avoid future headaches. This is especially true for 4WD Syncros where they press directly into the tank.

How do I know if I need to replace the float valve? Mine isn't leaking.

You're right to check! These float valves don't typically leak fuel. Their main job is to regulate vapor flow in your fuel recirculation system. The most common issue is the nipple breaking off due to the material becoming brittle over time, especially during other fuel system repairs. If you're working on your fuel tank or lines, it's a good time to inspect these, as they can be hard to access later. Replacing them now, if they show signs of age or cracking, ensures your entire fuel system is in good shape.

I have a 1987 Vanagon 2WD. Will this float valve fit my evaporation tank?

Yes, this float valve is designed to work with your 1987 Vanagon 2WD! On 2WD models, these valves press into the evaporation tanks located in the wheel wells. Remember, you'll need two of these float valves per vehicle to ensure your fuel recirculation and evaporation system functions correctly. We also offer the necessary Vapor Tank Grommets if you need those as well.

Is it really two of these float valves per Vanagon, even my 4WD Syncro?

That's correct! Whether you have a 2WD or a 4WD Syncro Vanagon from 1980-1991, you need two of these float valves for your fuel recirculation/evaporation system. On the 4WD Syncros, they press directly into the tank itself, whereas on 2WDs, they fit into the tanks up in the wheel wells. Ordering a quantity of two will ensure you have both replacements needed for proper system operation.

Thumbnail of White Float Valve on White Background

Vanne à flotteur pour réservoir de vapeur

Product:	251-201-311B
Works With:	1980-1991
Manufacturer:	Quality Aftermarket
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Proposition 65: This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.

Deux de ces flotteurs sont présents dans tous les systèmes de recirculation/évaporation de carburant des Vanagon.

Sur les véhicules à 2 roues motrices, ils s'emboîtent dans les réservoirs d'évaporation situés dans les passages de roue ; sur les Syncro à 4 roues motrices, ils s'emboîtent directement dans le réservoir lui-même. La conception de cette pièce est en réalité assez robuste et elle tombe rarement en panne, mais elle devient cassante avec le temps et il arrive parfois que la petite tige se détache lors de l'entretien du système de carburant.

Vendu à l'unité. Deux sont nécessaires par véhicule.

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Exploded diagram of 2WD van fuel tank assembly with labeled parts and connecting hoses

Système de reniflard du réservoir de carburant [2WD]

Système de reniflard du réservoir de carburant [Syncro]

Reference numbers can be OE part numbers, superseded part numbers, and compatible part numbers. We provide this information to help ensure you're getting the right part for your needs.

251-201-311B
251201311B

Vanne à flotteur pour réservoir de vapeur

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