Click Here for MK2/MK3/B3/B4 12V VR6 Cast Aluminum Thermostat Housing Assemblies!
GruvenParts.com is now distributing these beautiful cast aluminum thermostat housing assemblies for all 12V VR6 engines found in Corrado, Eurovan, Golf/Jetta MK3 and Passat B3/B4 vehicles. This part replaces thermostat housing P/N 021-121-117A (021121117A), adapter P/N 021-121-133D (021121133D), and thermostat cover P/N 021-112-121A(021112121A). Pair this with our billet crack pipes shown below for additional savings and durability !
This cast thermostat housing assembly includes the main thermostat housing with an integrated crackpipe adapter section and a cast aluminum thermostat cover. All new mounting fasteners, O-rings, and clips are included to complete your installation.
This cast aluminum thermostat assembly will mate up with the GruvenParts.com billet crack pipes - buy them as a set and save $$ ! You can also choose to buy a new 80C or low temp 70C thermostat with thermostat O-ring.
NOTE: VR6 housings are individually machined and cleaned of burrs and sharp metal edges from casting process. Your flange may differ slightly from the photos shown
Volkswagen Corrado VR6 12v
Volkswagen Eurovan T4 VR6 12v
Volkswagen Golf III VR6 12v
Volkswagen Jetta III VR6 12v
Volkswagen Passat B3 VR6 12v
Volkswagen Passat B4 VR6 12v
Billet VR6 Crack Pipes for ALL VR6 Engines Corrado thru R32!
MACHINED FROM 6061-T651 ALUMINUM TO EXACTLY MATCH OEM PIPE DIMENSIONS - OURS DOES NOT COME WITH CHEAP THIN WALLED TAPPED FITTINGS LIKE OTHER LESSER PIPES !!
12V and 24V VR6 Coolant Pipes aka Crack Pipes
GruvenParts.com was the 1st to build this part and it’s what started us off! We manufacture this pipe EXACTLY to match the OEM part shape so there is NEVER a fitment issue. Be careful when considering other billet pipes which do not match the exact shape of the OEM pipe. The fitment of this part is tricky and the shape MUST BE IDENTICAL to the OEM part to ensure correct alignment between the water pump and thermo housing.
If you have a billet crack pipe in your VR6, chances are it was made by us. Hand crafted in our Aerospace shop using O-rings from the Boeing 777, proven by many hours of track time, it's the highest quality crack pipe you can buy. It's on all of our track cars and has withstood countless hours of track abuse! Our pipe has a modular design which allows you to plug the oil cooler feed line with a ¼ NPT plug if installing an external oil cooler. Ours can also be ordered with a chrome plated drain valve for quick and clean coolant flushes. The pipe can also be ordered with a brilliant chrome finish for those seeking the ultimate engine bay bling!
If you dont want to do this job again, buy the LIFETIME WARRANTED GruvenParts.com billet CrackPipe !
Make sure to see our website for the complete installation DIY
The 12V version replaces OEM p/n 021-121-050C (021121050C) found in 12V VR6 : VW Corrado, Golf, Jetta, Passat, and Eurovan.
The 24V version replaces OEM p/n 022-121-050 (022121050) found in 24V VR6 : VW R32, Golf, Jetta, Eurovan, EOS, Audi : 3.2L V6 TT and A3