{"product_id":"radium-fuel-pump-hanger-1998-2006-bmw-e46-including-m3-20-1180","title":"Radium Fuel Pump Hanger | 1998-2006 BMW E46 Including M3 (20-1180)","description":"\u003cp\u003e\u003cstrong\u003eThe E46 uses two fuel hats and a saddle tank. Radium replaces both and keeps the crossover working properly.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eRadium Engineering fuel pump hanger for the BMW E46\u003c\/strong\u003e replaces both the RH and LH fuel hat assemblies with a drop-in system that accepts one or two aftermarket pumps, brushed or brushless. Both the passive side and active side fuel level sensors are reused, so the gauge keeps working, and a true saddle tank crossover is retained using improved components. No cutting or modification of the car is required.\u003c\/p\u003e\n\u003ch3\u003eWhat You'll Feel\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFuel pressure that survives sustained cornering instead of starving out of the collector\u003c\/li\u003e\n\u003cli\u003eA working fuel gauge on both sides of the saddle tank\u003c\/li\u003e\n\u003cli\u003eRoom to run one pump now and a second later, brushed or brushless\u003c\/li\u003e\n\u003cli\u003eNo stranded car from a popped-off jet pump connection when a high flow pump returns hard at low load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDrop-in replacement for both RH and LH fuel hat assemblies\u003c\/li\u003e\n\u003cli\u003eRuns 1 or 2 aftermarket pumps, 2-wire brushed or 3-4 wire brushless\u003c\/li\u003e\n\u003cli\u003ePRV venturi jet pump siphon with built-in pressure relief valve\u003c\/li\u003e\n\u003cli\u003eMerged 10AN ORB (7\/8in-14) female pump outlet with SAE quick connect barb for the OEM feed line\u003c\/li\u003e\n\u003cli\u003e10AN ORB female return inlet with 8.5mm barbed adapter for the OEM return line\u003c\/li\u003e\n\u003cli\u003eFittings machined low to clear the surrounding area\u003c\/li\u003e\n\u003cli\u003eAnti-rotation stainless electrical studs, hermetically sealed, with non-conductive acorn nuts\u003c\/li\u003e\n\u003cli\u003eETFE insulated in-tank wiring, fuel pump filter socks included\u003c\/li\u003e\n\u003cli\u003eGas, methanol, and E85 compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Details\u003c\/h3\u003e\n\u003cp\u003eThe PRV venturi jet pump is the real engineering story here. High flow pumps at low load push excessive return flow, which on a stock E46 pops the OEM venturi jet pump connection apart, stops fuel transfer from the passive side, and eventually strands the car. Radium's version has a built-in pressure relief valve to control that flow, and it also permits low static fuel pressures. The collector bowl is fed from three directions: the OEM labyrinth that holds fuel during cornering, the constant low pressure regulator return, and crossover fuel scavenged from the passive side by the jet pump siphon.\u003c\/p\u003e\n\u003cp\u003eSingle pump installs can reuse the OEM fuel pump wiring, though upgrading it is recommended so the pump sees full voltage. A second pump \u003cstrong\u003emust\u003c\/strong\u003e have its own dedicated relay and fuse; a Radium DIY wiring kit covers each aftermarket pump. Pumps without an integrated check valve, such as the Walbro F90000295, can use the 20-1534 check valve kit in place of the fittings under the fuel hat.\u003c\/p\u003e\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHanger tops for both feed and return sides, partially assembled\u003c\/li\u003e\n\u003cli\u003eComplete new jet pump system\u003c\/li\u003e\n\u003cli\u003eAll parts to install 1 or 2 compatible pumps, including filter socks\u003c\/li\u003e\n\u003cli\u003eElectrical parts kit for external wiring at the hanger top\u003c\/li\u003e\n\u003cli\u003eNOT included: fuel pumps and plumbing kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e99-05 BMW E46 316i, 98-06 318i, 98-06 320i, 98-00 323i, 01-06 325i, 98-00 328i, 00-06 330i, 03-06 330i ZHP\u003c\/li\u003e\n\u003cli\u003e00-06 BMW E46 M3 and 03-04 M3 CSL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with OEM BMW (VDO) senders only; NOT compatible with aftermarket Bosch senders\u003c\/li\u003e\n\u003cli\u003eA second pump requires its own dedicated relay and fuse\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":43700757561411,"sku":"20-1180","price":522.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/20-1180_E461x1.jpg?v=1787353404","url":"https:\/\/www.tunedbyshawn.com\/products\/radium-fuel-pump-hanger-1998-2006-bmw-e46-including-m3-20-1180","provider":"Tuned by Shawn","version":"1.0","type":"link"}