Radium Engineering 8AN ORB Direct Mount Regulator-Rotating Assembly (DMR-RA) - Black - 20-1623-00

Radium Engineering DMR-RA Direct Mount Fuel Pressure Regulator — Black (20-1623-00)

Radium's Direct Mount Regulator, supplied here with the remote adapter so it can run inline instead of bolting straight to a Radium fuel rail. Adjustable base pressure from 18 to 50 psi with a 1:1 boost and vacuum reference port, so fuel pressure tracks manifold pressure the way the tune expects.

Compact billet aluminum body, black anodized, with a dedicated 1/8" gauge port. The direct-mount design is what makes it worth choosing on a tight engine bay — it eliminates the plumbing run a conventional inline regulator needs, which is fewer fittings and fewer leak points.

Return-style. ORB inlet, outlet, and return ports with fittings included.

Pressure range is 18-50 psi. That covers most port-injected builds at standard base pressure. If you're running high base pressure on a big-injector setup, check your target against that ceiling before ordering.

Not rebuildable. Mounting bracket not included.

Sold each.