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TracTuff RBC/ RBB Water Neck Flange - V1


The 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 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.

NOTE: If you are looking for a neck to replace the OEM unit, please take a look at the OEM Replacement

1.25" Hose Fitting

-16 Male Flare