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TracTuff RBB/ RBC Water Neck Flange - V2


The V2 RBB/ RBC flange is beautifully machined from 6061-T6 and incorporates a -16 ORB outlet port and a 1/2" NPT heater port. Fits the K24A/ A2/ A4/ A8 and K20Z3 or any engine using the RAA/ RBB/ RBC/ RSP cylinder head casting. The V2 version was designed for the deal for extremely cramped FWD engine bays as well as any RWD swap that has at least 1-5/8" (total flange width 1.562") worth of space between the cylinder head and the firewall. 

The hardware kit includes four M8 stainless steel socket head bolts, a 90° heater hose fitting, a 1/2" NPT plug and either a Genuine Honda gasket or a pair of o-rings. Please chose either our matched 1.25" hose or a -16 male flare fitting to create your upper radiator hose. You also have the option of adding a sensor port.

NOTE: If you don't have/ need a sensor, don't select it. I only offer two threads... 1/8" NPT or 1/8" BSPT (Honda Single Prong Sensor).

1.25" Hose Fitting

-16 Male Flare