VW Heater Core #10AN Adapter hat. is cut from 6061 plate

is cut from 6061 plate

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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)

Can be removed and installed using a rubber mallet

VW Heater Core #10AN Adapter hat. is cut from 6061 plateThese billet adapters convert your plastic VW MK4 MK5 MK6 heater core connections to male #10AN. Machined from 6061. A hex (not a curse) has been added to prevent strain on the plastic heater core when tightening hose end to adapter. No modification is necessary to install. Adapters include new O rings. Sold as a pair. *MUST REUSE SPRING CLIP FROM OE CONNECTION* Note: These adapters are designed to fit the 22MM style quick disconnect and will fit