Thermostat & Related

On 2wd models 86-91, this part was originally made of plastic, while on 4wd models it was made of aluminum. This kit includes all of the parts needed to convert from your 2wd plastic thermostat housing to the aluminum Syncro version. This includes all of...

This kit has everything you need to ensure that your thermostat replacement goes smoothly in your 1986-91 2WD Vanagon. This bundle includes: Thermostat housing body Thermostat housing cover O-rings Your choice of 87-degree (stock) or 80-degree...

Thermostat housing for 2.1L Vanagon 1986-91 2WD only. 4 o-rings are included with this housing: 2 sensor o-ring , 1 thermostat o-ring, 1 housing to head o-ring. Please click here to upgrade to the aluminum thermostat housing. Ref ID: 025121115 Shop by...

This part attaches to the firewall on the passenger side alongside of the transmission. There are three versions of this part so you MUST read the part number off the part you are replacing. Make sure they match up before ordering. This junction is used...

The diesel cylinder head coolant flange can become corroded over time.  This good quality replacement comes complete with o-ring. Fits diesel Vanagons 1980-89. Ref ID: 068121145K

This silicone hose kit comes with the appropriate clamps. and will fit all 1.5" stainless steel coolant pipes. One kit will do both the feed and return pipes. 6" long.

This is the stock thermostat value that the Vanagon originally came with. Includes the sealing o-ring that we prefer. One per Van Sold individually Opens at 87 degrees Celcius. This is nice in colder weather since it will allow the Van to heat up more...

Wahler was the original supplier of thermostats to Volkswagen and is our preferred brand. Lower temp thermostat value for that added margin of safety. It opens at 80 degrees Celcius. This is nice in hotter weather, or if you find yourself in stop-and-go...

Water pump pulley bolt.  There are three of these that hold the pulley to the water pump on WBX 1.9L and 2.1L motors. M8 x 1.25 x 16 Sold individually.

Lower thermostat housing bolt 86-91 2wd only. Just in case you need a new one. M8X60mm. Please click here for the lower thermostat housing bolt. Ref ID: N0147145