TracTuff RBB/ RBC Rear Wheel Drive K Swap Remote Filler Neck

Description

Normally, the water neck on a K is pretty much right in front of the radiator, and the two points are pretty much equal in height… and even then, the K is notorious for being a real bitch to bleed!

Rotate the motor 90°, tuck the back of the cylinder head into the firewall or under a cowl like an RX-8, and you no longer have access to the highest point in the cooling system. As a result, the outlet tube diving under the intake manifold creates a huge air pocket that makes a difficult shit-utaion worse!. This variant was originally designed for a K24A swapped RX-8 but may work for similar scenarios. The filler tube wraps around the intake manifold and turns upward over the runners, significantly reducing the headache of adding fluid and bleeding the system at its highest point.

NOTE: If you selected “Other” for intake manifold, please email us your order number and manifold type. If you want a different design, email us at sales@tractuff.com.

The cap bung has a 1/16″ NPT port for connection to an overflow and uses early model Honda radiator caps, such as an 88′-91′ Civic/ CRX or 90′-93′ Integra. The sensor port selection is optional; if you don’t have/ need a sensor, don’t select it.

The billet flange requires at least 1-5/8″ (total flange width 1.562″) worth of space between the cylinder head and the firewall. The flange is machined with a 1/2″ NPT heater port, and the hardware kit includes a 90° hose fitting, a 1/2″ NPT plug, four stainless M8 socket head bolts, and a pair of o-rings. The filler tube is welded to sit level when bolted to an engine leaned back 15° (OEM position).