TracTuff PRB/ PRC Billet Water Neck

TracTuff PRB/ PRC Billet Water Neck


The popularity of our RBC/ RBB water bypass adapter brought a lot of requests for us to produce an upper water neck for PRB/ PRC cylinder heads and we listened! CNC machined from US milled 6061 aluminum; our water neck incorporates an OEM o-ring grove on the mating surface side, -16 ORB (O-Ring Boss) threads for the outlet and a 1/2" NPT port for the water bypass. 

-16 ORB to -16 Male-16 ORB to 1-1/4" Hose, 1/2" NPT to 5/8" straight hose barb, or 1/2" NPT port plug 

Example with -16 ORB to -16 Male and 1/2" NPT to -8 AN Male

Example with -16 ORB to 1-1/4" Hose and 1/2" NPT to -8 AN Male

Side Port Option

Top Port Option