TracTuff PRB/ PRC Billet Water Neck w/ Fill Pot - RWD

TracTuff PRB/ PRC Billet Water Neck w/ Fill Pot - RWD


Something new for all your rear wheel drive k swappers!! This fill pot is the ABSOLUTE tightest package I can make. I have crammed a 3.00" body into a space that does not extend beyond the camshaft sensor, making great use of wasted space and ensuring you are adding coolant to the highest point in the system. Available for the Skunk2 Ultra Street or Ultra Race intake manifold. 

This product shown uses a version of billet water neck is all about space, similar to my other PRB water neck options... this has the largest port allowed within the OEM gaskets footprint but unlike the others, it does not include a water bypass port. If a water bypass needs to be retained, you should add the -10 male flare OR if tank space is not critical, choose the street style water neck flange that retains the original water bypass position. The product in the photos also shows an accessory bung which is an option but may not be needed.

NOTE: Made to Order - Contact for ETA - If you are interested in a specific design that varies from this, please email us at If using AN lines we also recommend designing the upper radiator hose so that there is droop/ give so the engines movement and does not push/ pull on the radiator and fatigue any parts. Tank is welded so that it sits level when bolted to an engine with a 15° lean to the passenger side (exhaust side).

1/1/19 Update: Due to the stress placed on the brackets/ braces, a plinth can be added to distribute the load and increase strength.