Why do I need to replace both the vacuum switch and the bracket together?

We sell the Vacuum Switch - OEM Style (Decoupler & Locker) as a complete assembly because the bracket and switch typically wear out together. When a switch develops too much internal friction, the force required to operate it often causes the bracket to fail. Replacing the entire assembly ensures a reliable fix.

Will this vacuum switch fit my specific Vanagon model?

This reproduction assembly is designed to fit all 1986-1991 4WD Syncro Vanagon models as a direct replacement for the original OEM VW switch at the dash.

Does this kit include the tubing and the knob?

The knob is not included, and this assembly does not include the white vacuum components that connect the switch to the differential lock or decoupler. If you need the tubing, we recommend our Vacuum Switch Kit or checking the related products list.

Is this a high-quality alternative to the original VW part?

Yes, this is a high-quality reproduction manufactured by Tristar-Connection. Customers have noted that it is very well made and works just like the original OEM part.

Vacuostat - Style OEM (Découpleur et casier)

Vacuostat - Style OEM (Découpleur et casier)

Product:	857-711-981-OE
Works With:	1986-1991
Manufacturer:	Tristar-Connection
Restock ETA:
Availability:
Wrench Rating:	Requires some hand & power tools and minimal mechanical knowledge.

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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.

Il s'agit d'une reproduction de haute qualité du vacuostat d'origine Volkswagen pour le découpleur et le blocage de différentiel.

Compatible avec : tous les modèles 1986-91 4WD Syncro Vanagon

Remarque : ce produit remplace directement un interrupteur OEM VW d'origine sur le tableau de bord, mais n'inclut pas les composants sous vide blancs qui relient l'interrupteur lui-même au blocage de différentiel ou au découpleur. Consultez la liste de produits connexes ci-dessous pour connaître les articles supplémentaires dont vous pourriez avoir besoin, ou procurez-vous le kit de commutateur à vide que nous proposons qui comprend le tube.

Difflock & Decoupler Vacuum System [Syncro]

Système de verrouillage de différentiel et de découpleur sous vide [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Reference numbers can be OE part numbers, superseded part numbers, and compatible part numbers.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.