TracTuff PR3 Billet Water Neck
Our beautifully machined B18C5/ B16 flange is designed and machined with a 3D tapered entry port for a seamless transition to your choice of hose connection. The flange is threaded for a -16 ORB fitting but also has a generous o-ring seat that doubles as a weldable socket for custom jobs. The backside of the flange has an o-ring grove for a positive seal without the hassle of Hondabond.
NOTE: When using the OEM rubber or silicone replacement style upper radiator hose, I recommend choosing the "Weld 1.25" Tube for OEM Hose" selection under "Fab Options" to reproduce the stock outlet attachment point.