Radium Engineering Fuel Hanger Plumbing Kit - BMW E36/E46

Part Numbers: 20-1175-03 (Stainless Filter) | 20-1175-05 (Microglass Filter)

These kits provide all necessary plumbing to and from the engine including a fuel filter, fuel pressure regulator, fuel lines, adapter fittings, and mounting hardware.

A low profile 8AN male banjo fitting is installed to the fuel hanger pump outlet. 8AN PTFE fuel hose runs to the LH side over the top of the fuel tank. It then turns downward and routes along the underside of the chassis through 2 billet fuel/brake line retainers. A new billet high flow fuel filter is mounted in the OEM location. Filter elements are either 10 micron stainless (-03) or 6 micron microglass (-05).

From the fuel filter outlet, another 8AN PTFE fuel hose runs into the engine bay and towards the front of the fuel rail (not included). A low profile 8AN male banjo fitting is installed to the fuel rail. A direct mount fuel pressure regulator and gauge is mounted at the rear of the fuel rail.

A new 6AN return hose with an SAE quick connect adapter is constructed to route fuel from the direct mount regulator to the rear. A low profile 6AN male banjo fitting is installed to the fuel hanger return port. New vacuum tubing is provided to replace the OEM hard lines.

Kit Contents

• DMR-RA Fuel Pressure Regulator
• 0-100 psi Fuel Pressure Gauge
• Filter (10 micron Stainless - -03 | 6 micron Microglass - -05)
• 8AN Fuel Filter Adapter Fittings
• 8AN and 6AN Fuel Hanger Fittings
• Fuel Brake Line Retainers (x2)
• 8AN Fuel Rail Adapter Fitting
• 8AN PTFE Fuel Feed Hoses
• 6AN Fuel Return Hose
• 6AN SAE Quick Connect
• 6AN PushLok Hose End
• Stainless Steel Hardware
• 5/32" Vacuum Tubing
• Misc. Adapter Fittings

Available Part Numbers

• 20-1175-03 - Stainless Filter (10 micron)
• 20-1175-05 - Microglass Filter (6 micron)

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined billet aluminium components throughout
• ✅ Trusted by tuners and race teams on real-world high-power builds
• ✅ Bolt-on fitment — no cutting, drilling, or fabrication required
• ✅ Compatible with E85, pump petrol, and flex fuel applications