Aluminum Coolant Expansion Tank - MK3 Thru MK6 logo

Aluminum Coolant Expansion Tank - MK3 Thru MK6 logoIts finally here! Our Aluminum Coolant Expansion Tank is a direct replacement alternative to the factory plastic coolant ball. The top half of this coolant ball has been machined from one solid piece of aluminum and was designed to accept the OE radiator cap (cap not included). The ports are now both NPT allowing the user to run the OE hoses or convert to AN. A level sensor with pigtail is included to connect to the OE lever sensor harness. The level

Press-in AN adapter that replaces the barbed connection to the coolant port on the back of the MK3/MK4 12V VR6 head

Attaches to the stock coolant hoses without modification

*Sold individually*

Has AN ports welded on with AN to Barbed adapters

-Includes radiator cap

The top half of this coolant ball has been machined from one solid piece of aluminum and was designed to accept the OE radiator cap (cap not included)

*Though the brake reservoir fits snuggly into the master we highly recommend using zipties to temporarily secure the reservoir to the master while using a power bleeder

(2) #10 or 1/2"NPT ports

We have added a 1/4" female NPT port to the hex caps we use which will accept the NPT adapters commonly found with power bleeders

Sold as a pair

Billet Aluminum adapter that will convert your radiator to a #16AN  connection on all MK4/5/6/7 platforms and various Audi models

so thank you for making thoughtful purchasing decisions