Do I need to buy this O-Ring if I'm already purchasing a new thermostat from GoWesty?

No, you do not need to purchase this separately. If you order a new thermostat from GoWesty, it will already include this O-Ring.

Will this thermostat O-Ring fit my Vanagon?

This part is designed to fit 83-91 Vanagon models, including the Westfalia Camper, Campmobile, Carat/Hard Top Weekender, Multivan, and Wolfsburg Weekender.

I'm planning to reuse my old thermostat; is this the correct seal for that?

Yes, if you are planning to re-use your old thermostat but simply need a new O-Ring, this is the correct part for you.

What is the part number for this O-Ring?

The part number for this Quality Aftermarket O-Ring is 034-121-119.

Thermostat O-Ring

Product:	034-121-119
Works With:	1983-1991
Manufacturer:	Quality Aftermarket
Restock ETA:
Expected to ship:
Availability:

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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.

If you're planning to re-use your old thermostat, but you need a new O-ring, this is the one for you.

NOTE: If you are ordering a new thermostat from GoWesty, it will include this O-ring.

Fits: 83-91 Vanagon

Reference numbers can be OE part numbers, superseded part numbers, and compatible part numbers.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.