Radium BMW E46 Fuel Pump Hanger

Radium BMW E46 Fuel Pump Hanger

Application: BMW E46 3 Series incl. M3 and M3 CSL (OEM BMW/VDO level senders required)
Part Type: Dual-side fuel pump hanger (one or two pumps, pumps sold separately)
Part Number: 20-1180

The Radium 20-1180 replaces both the left and right-side fuel hat assemblies in the BMW E46 saddle tank. It runs one or two aftermarket fuel pumps, reuses the OEM passive and active fuel level sensors and retains a true saddle-tank crossover – with no cutting or modification to the vehicle.

The collector bowl is fed from three sources: the OEM labyrinth, low-pressure return fuel driving the venturi siphon, and crossover fuel scavenged from the passive side. A redesigned PRV venturi jet pump with built-in pressure relief valve limits excess return flow, which can otherwise pop the OEM connection when high-flow pumps run at low load, and allows low static fuel pressure.

Key Features

• One or Two Pumps: Supports one or two aftermarket pumps, brushed (2-wire) or brushless (3/4-wire)
• OEM Sensors Retained: Reuses the OEM passive and active fuel level sensors
• Saddle Tank Crossover: True crossover retained, with three-source collector bowl feed
• PRV Venturi Jet Pump: Built-in pressure relief valve protects the OEM connection and allows low static pressure
• Fittings: Merged pump outlet and return inlet tapped 10AN ORB (7/8"-14), with SAE quick-connect barb to the OEM feed line and 8.5mm barb to the OEM return line
• Electrical: Hermetically sealed anti-rotation stainless studs, anodised aluminium acorn nuts and ETFE-insulated in-tank wiring
• No Modification: Drop-in installation with no cutting or modification

What's Included

• Feed-side and return-side hanger tops, partially assembled
• Full new jet pump system
• Parts to install one or two compatible pumps (pump filter socks included)
• Electrical parts kit for external wiring at the hanger top

Optional Parts

• Radium Engineering 20-1175 Fuel Hanger Plumbing Kit, BMW E36/E46 (20-1175-03) – 8AN feed/6AN return plumbing kit with DMR-RA regulator, gauge and filter
• Radium DIY Fuel Pump Hard Wiring Kit (17-0031) – one wiring kit per pump
• Radium Engineering Check Valve - 6AN ORB to 10mm Barb (20-1534) – check valve for pumps without an integrated check valve (e.g. F90000295)
• Radium Adjustable Pressure Switch (20-0236) – adjustable pressure switch for staging a second pump

Important Notes

• Fuel pumps not included – verified pumps: Walbro GSS342, F90000267, F90000274, F90000285, F90000295 (no integrated check valve – see 20-1534); Ti Automotive E5LM; Protec 11928 / Fuelab 49614; DeatschWerks DW440, DW810. Other similar pumps may fit but are not verified
• Not compatible with aftermarket Bosch senders – OEM BMW (VDO) senders are required
• Single-pump installs can reuse the OEM pump wiring (upgrade recommended for full power); a second pump requires its own dedicated relay and fuse
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• BMW E46 316i (1999-2005)
• BMW E46 318i (1998-2006)
• BMW E46 320i (1998-2006)
• BMW E46 323i (1998-2000)
• BMW E46 325i (2001-2006)
• BMW E46 328i (1998-2000)
• BMW E46 330i (2000-2006)
• BMW E46 330i ZHP (2003-2006)
• BMW E46 M3 (2000-2006)
• BMW E46 M3 CSL (2003-2004)

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.