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Holley Dual 525 LPH Pump Module System-1050 LPH Total

2005-20 Challenger/Charger/300 Dual 525 LPH Pump Module System-1050 LPH Total

PART# 12-176

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The new Holley fuel system for the 2005-20 Challenger/Charger/300 is a true dual pump design. The saddle tank design in the late model Challenger, Charger, and other musclecar platforms can be a limiting factor for road course duties. Most aftermarket systems suggest that you have to have 1/2 to 3/4 of a tank of fuel to race without potential fuel pressure loss in the turns. Holley has designed a system with a 525 LPH E85 compatible pump for both sending units in the fuel tank. The design eliminates the factory jet pump and includes a HydraMat on each new pump module to prevent fuel starvation with only 2 gallons of fuel in your tank. Supports up to 2200 EFI or 2800 Carb HP (@60 PSI at 13.5 Volts / 16.9 AMP Draw) The OEM jet pump diverts more than 20 GPH to sweep fuel from the secondary side since this is the only way to access fuel from this side. This fuel is only recycled for the jet pump and takes away from useable fuel delivery to the engine. There is no functional use for the jet pump in the Holley system since we return fuel from each regulator directly above each of the HydraMats. The amazing HydraMat® is Holley's patent pending design that solves the problems associated with traditional fuel pick-ups in stock fuel tanks as well as racing fuel cells. During hard cornering, acceleration, stopping, inclines, and low fuel conditions fuel runs away from the fuel pick up which introduces air into the system resulting in poor engine performance and even stalling. HydraMat is the solution! Surface tension and fluid wicking are the secrets of the HydraMat, giving it the amazing ability to draw from nearly any area that has contact with fuel and then store it in its internal reservoir. As an area of the HydraMat is uncovered, the tiny pores of the media seal off through surface tension, forcing fuel to be contained in the reservoir and drawn from other areas of the mat where fuel continues to be available.


  • Holley provides a HydraMat, pump and regulator on each side of the saddle tank
  • Two 525 lph pump modules to install in your tank
  • The modules are constructed from billet aluminum and steel for endurance
  • -8 ORP inlets and outlets
  • Can connect to factory fuel line with included 3/8 and 5/16 to -8 ORP fittings
  • If running returnless w/ regulators can be wired directly to car, if not relays must be used
  • Re-uses factory fuel level sender
  • Supports up to 2200 EFI or 2800 Carb HP (@60 PSI at 13.5 Volts / 16.9 AMP Draw)


Application2005-2008 Charger / 300 / Magnum SRT-8, 6.1L; 2009-2014 Charger / Challenger / 300 5.7 / 6.1 / 6.4L
2015-2020 SRT Charger / Challenger / 300
Emission Code5
Free Flow GPH277
Free Flow LPH1050
Fuel SystemEFI
Fuel TypeE85
MaterialBillet Aluminum and Steel
Product TypeFuel Pump Module
Pump Body ColorSilver
WarrantyLimited 90 Day
Part Number12-176



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Can be run one of the following ways: o Returnless with regulators o Return with internal crossover o Return with returnless crossover

Warranty Information

Limited 90 Day: See Details


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