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On 2wd models 86-91, this part was originally made of plastic, while on 4wd models it was made of aluminum.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 is everything you need to ensure that your thermostat replacement goes smoothly. This bundle includes: thermostat housing, cap, O-rings, and your choice of 87-degree (stock) or 80-degree thermostat. Fits 86-91 2WD. Ref ID: 025121115-BUNDLE

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...

Diesel cylinder head coolant flange.  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.

6 point inner CV bolt for Syncros only. The Syncro inner bolt is 2mm longer than the standard rear CV bolt.Also for the 2.1ltr 2wd lower thermostat housing bolt and Syncro thermostat housing bolt upper and lower. If you need, here is the upper 2wd 2.1ltr...