Is this Vacuum Switch Kit compatible with my Vanagon, and how do I know if I need any extra parts?

This OEM-style Vacuum Switch Kit is designed specifically for 1986–1991 VW 4WD Vanagon models, including Westfalia Campers, Wolfsburg Weekenders, Carats/Hard Tops, and others with manual transmissions. If your Vanagon doesn't already have a factory locker or decoupler system, you may need to install an additional vacuum system for the kit to function. We recommend checking your vehicle's current setup or consulting the installation instructions provided. If you need extra components, GoWesty can help you source the correct parts.

What exactly comes with the Vacuum Switch Kit - OEM Style (Locker or Decoupler), and what else might I need?

This kit includes the OEM-style vacuum switch and knob, billet switch knob, all mounting hardware, required vacuum tubing and hose, and a vacuum tee. However, the indicator light and some wiring are not included and must be purchased separately if you want dash activation feedback. Double-check your setup to see if you have those already, or add them to your cart for a full installation.

How difficult is it to install this kit, and can I do it myself?

The Vacuum Switch Kit is designed for straightforward, dash-mounted installation and includes clear instructions. Many Vanagon owners with basic mechanical skills and some patience can install it themselves, whether you choose to mount it with or without a control panel. If your van didn't come from the factory with a locker or decoupler, adding a vacuum source will require extra steps. If you’re unsure, a professional mechanic familiar with VW Vanagons can ensure a smooth installation.

Will this kit keep the factory look and feel of my Vanagon's dash?

Yes! This Vacuum Switch Kit is made to match the original OEM style, so it blends seamlessly with your Vanagon’s dash. The switch, knob, and hardware are all designed to provide a high-quality, factory-style appearance, making it a great choice for those who want to keep their interior looking authentic while adding or upgrading locker/decoupler control.

Can I use this kit to both upgrade an existing dash locker switch and add a switch to a vehicle that never had one?

Absolutely. The Vacuum Switch Kit is perfect whether you're upgrading a worn or missing dash control for your locker or decoupler, or installing a new setup on a supported Vanagon that never had one from the factory. Just make sure to review the installation requirements – if your van lacks a factory vacuum setup, additional vacuum system components may be needed. GoWesty provides clear instructions to ensure compatibility and ease of installation for both scenarios.

Knob switch kit for locker or decoupler

Vacuum Switch Kit - OEM Style (Locker or Decoupler)

Product:	LOCKER-SWITCH-ADD-KIT
Works With:	1986-1991
Manufacturer:	Tristar-Connection
Availability:	Only 1 Left in Stock!
Wrench Rating:	Requires some hand & power tools and minimal mechanical knowledge.

$141.00

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This vacuum switch kit contains the necessary components to add a locker/decoupler control switch to your dash. Related parts are sold separately below.

Kit includes:
• Switch and mounting hardware (Reproduction of OEM Volkswagen)
• Vacuum tubing to supply both sides of the vacuum servo
• Vacuum hose for decoupler
• Vacuum tee (5mm barbed)
• Knob for switch (Billet aluminum in black or brown)