TracTuff PRB/ PRC Rear Wheel Drive K Swap Water Neck


The RWD version of the PRB/PRC water neck flange opened up lots of opportunities for more complete upper radiator hose connections... here is one of the most common! 

With the help of Pit Garage I and am happy to offer this upper water neck with tubing modeled for use with the S2000 radiator hose. Available with slight adjustments, to fit the Skunk2 Ultra Street and Ultra Race intake manifolds with the plenum flipped and keeping the end of the tube in VERY similar proximity to the OEM S2000 water necks outlet position. 

The water neck starts with a a beautifully machined from 6061-T6 flange that incorporates the largest passage possible within the OEM gaskets footprint, a -8 ORB water bypass port, and machined o-ring groove for the OEM gasket. You can also choose to have a 1/8" NPT or BSPT sensor port added directly to the top of the neck (near the logo). The hardware kit includes two M6 stainless steel socket head bolts, a water bypass hose fitting, and a Genuine Honda gasket. 

NOTE: Made to Order Please allow 5-7 days for this product to ship - If you are interested in a specific design that varies from this, please email us at sales@tractuff.com. The outlet tube is welded so that it sits very similarly to the OEM S2000 water neck outlet does when bolted to an engine leaned back 15° (OEM position).

This is the highest point in the cooling system so I have added the option for a filler neck if you are looking for an easier way to add coolant and bleed the cooling system.