Radium Engineering Fuel Pump Hanger | 2008-2017 GM LS Cars (20-1320 / 20-1322)

The stock GM saddle tank module taps out long before an LS build does.

The Radium Engineering fuel pump hanger for 2008-2017 GM cars drops into the factory tank opening and completely replaces the OEM in-tank module, packaging 1, 2, or 3 aftermarket pumps inside a one-piece anodized aluminum collector box with three 355 LPH one-way fill valves in the floor. Radium's redesigned siphon system deletes the restrictive OEM venturi jet pump from the return path while still scavenging the far side of the tank, all OEM sensors are retained, and the factory feed line with its integrated fuel pressure sensor reconnects to one of the two 8AN ORB outlet ports. Fuel compatibility covers gasoline, E85, and methanol. Pumps are not included.

Choose Your Version

• Fits AEM 50-1220 / DW440 Brushless (20-1320): also accepts Bosch 0 580 454 100 and several OEM GM pumps; note the Bosch and stock CTS-V pumps have no internal check valve, so run 2 full time with the OEM PCM
• Fits Walbro F90000267/274/285 (20-1322): the Walbro 39/50 DCSS family; Protec 11928, Fuelab 49614, and DW810 fit with the separate 13-1187 brushless pump base

What You'll Feel

• Steady fuel pressure through hard launches and sustained cornering, since the collector box and fill valves keep fuel trapped at the pump inlets
• Headroom for real power: three pumps in the factory tank location with no external surge tank to package
• Higher flowing pumps without the fuel pressure instability the restrictive OEM venturi return causes
• A factory look and factory diagnostics, since the OEM level sender, pressure sensor, and crossover line all stay functional
• One assembly, one tank opening, no permanent modifications

Features

• One-piece anodized aluminum collector box with three 355 LPH FKM one-way fill valves
• Two pump OUT ports tapped 3/4in-16 (8AN ORB); second port ships plugged with a spare 8AN ORB to 6AN male fitting provided
• RETURN port tapped 8AN ORB with 8AN ORB to 6AN male banjo fitting provided
• Two SAE quick connect fittings included to adapt the OEM feed line and internal crossover line across all compatible vehicles
• Redesigned jet pump siphon eliminates the OEM venturi return restriction; consumes 15 to 45 LPH depending on fuel pressure
• Two billet aluminum level sensor mounts included to retain the OEM fuel level sender on all compatible vehicles
• Three independent pre-pump filtration chambers; empty ports need no block-off
• Anti-rotation stainless electrical studs with nonconductive acorn nuts; single pump installs can reuse the OEM pump controller wiring

The Details

This hanger deletes the OEM in-tank regulator, so the system requires an aftermarket fuel pressure regulator downstream, and it also eliminates the OEM post-pump filter, so a low micron filter must be installed before the injectors. Both arrive together in the matching fuel hanger plumbing kits, which also carry a built-in check valve in the filter to hold pressure after shutdown; running without a plumbing kit means sourcing your own regulator, filter, and check valve. Pump selection drives the version choice: 20-1320 for AEM 50-1220 and brushless DW440 style pumps, 20-1322 for the Walbro F9000 series. Size the pumps with the 15 to 45 LPH jet pump consumption in mind, and plan wiring upgrades for multi-pump installs since the OEM controller wiring supports a single pump at best. Radium DIY fuel pump wiring kits handle the rest, one per pump.

Kit Includes

• 1x fuel pump hanger assembly in the selected pump compatibility version
• SAE quick connect fittings for OEM feed line and crossover line, both vehicle variations
• 8AN ORB to 6AN male fittings for the second outlet and return ports
• Two billet aluminum OEM level sensor mounts
• Electrical hardware for pumps and sensors
• NOT included: fuel pumps, fuel pressure regulator, post-pump fuel filter, pump wiring kits

Applications

• 2008-2014 Cadillac CTS; 2008-2015 Cadillac CTS-V
• 2010-2015 Chevrolet Camaro; 2009-2017 Chevrolet Caprice PPV; 2014-2017 Chevrolet SS
• 2008-2009 Pontiac G8; Holden Commodore VE/VF and Caprice equivalents

Important Notes

• An aftermarket fuel pressure regulator and a low micron post-pump filter are required on every installation; both come in the Radium fuel hanger plumbing kits for the CTS-V (20-1325-03 / 20-1325-05)
• Bosch 0 580 454 100 and stock CTS-V pumps have no internal check valve; run 2 full time with the OEM PCM
• Protec 11928, Fuelab 49614, and DW810 pumps require the 13-1187 pump base to fit the 20-1322 strainer