FASS DMAX-7001 Diesel Fuel Pump Flow Enhancer GM Duramax 6.6L 2001-2010
FASS DMAX-7001 Diesel Fuel Pump Flow Enhancer GM Duramax 6.6L 2001-2010
BRAND: FASS Fuel Systems | SKU: FASS DMAX7001

FASS DMAX7001 Diesel Fuel Pump Flow Enhancer GM Duramax 6.6L 2001-2010

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The FASS Fuel Systems DMAX7001 Lift Pump is an upgraded fuel delivery system engineered specifically for 2001–2016 GM 6.6L Duramax trucks. Designed to replace the weak factory suction‑side setup, this high‑efficiency pump delivers consistent fuel pressure, superior filtration, and enhanced air/vapor separation to protect injectors and improve overall engine performance. The DMAX7001 supports stock and tuned Duramax applications by increasing fuel flow, reducing injector wear, and ensuring clean, reliable diesel delivery under all driving conditions. Built with FASS’s proven durability and quiet‑run technology, this lift pump is a direct‑fit upgrade that boosts throttle response, extends fuel system life, and provides the dependable fuel supply your Duramax needs.
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FASS Fuel Systems Dura-Max Diesel Lift Pump DMAX7001

The FASS D-MAX 7001 Lift Pump Applications:

  • 2001 to 2010 GMC Sierra 2500HD and 3500HD trucks
  • 2001 to 2010 GMC 4500 and 5500 series trucks
  • 2001 to 2010 Chevy Silverado 2500HD and 3500HD trucks
  • 2001 to 2010 Chevy 4500 and 500 series trucks

Duramax diesel engines do not come with a factory lift pump, this is why Duramax owners see such great performance and economy gains after installing an aftermarket diesel fuel lift pump. When the factory CP3 injection pump pulls fuel under a vacuum it can introduce air and vapor into your fuel, which can lead to injector failure. The D-Max Flow Enhancer has been designed to provide your Duramax engine with a constant 8 PSI fuel pressure, aiding the injection system by reducing the amount of work your factory injection pump has to perform, extending its expected life, and improving performance gains from aftermarket tuning products. Since the D-Max Flow Enhancer is a “pusher” pump, all fuel is placed under pressure, helping prevent the introduction of air and vapor.

The FASS D-Max is well designed for stock powered trucks or budget-minded customers. However, it is suggested that Duramax diesel owners install one of our Titanium Series pumps if you have several fueling upgrades or if you are looking for improved filtration and all the benefits that come with our top selling Titanium Series FASS Diesel Pumps.

Duramax Flow Enhancer Lift Pump Features:

  • Reduces the workload placed upon the Factory CP3 relating to fuel flow
  • Delivers Fuel Under Pressure at a constant rate.
  • Improves Fuel Flow
  • Improves Fuel Delivery and Performance
  • Reduces Air and Vapor
  • Budget Minded Alternative
  • Simple Installation

The installation of a FASS DMAX7001 Diesel Fuel Pump Flow Enhancer will increase the life span of your entire fuel injection system and remove the risk associated with injector failure caused by inadequate fuel flow. 

FASS manufactures the Best American Made High-Performance Diesel Pumps and Fuel Air Separation Systems available today.

  • By KLM Performance
  • Engine : 6.6L Duramax
  • Flow Rate: 110 Gallons Per Hour
  • Fuel Pressure: Eight PSI.
  • Item Number: FASS DMAX7001
  • Power Level: Stock Power to Minor Power Level Increases.
  • Make Chevy | GMC
  • Model 2500HD | 3500 | 4500 | 5500
  • Year 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
  • Manufacturer Part No DMAX-7001
  • Product Application: All 2001 to 2010 GMC vehicles equipped with the 6.6L Duramax diesel.
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  • Brand: FASS Fuel Systems
  • FAQ; Why would I need to install a lift pump on my 2001 to 2010 Chevy or GM truck with a 6.6L Duramax? The DMAX is a supplemental lift pump designed to enhance the performance of your 2001 to 2010 6.6L Duramax Engine because it acts as a pusher pump that supplies the correct fuel flow and pressure to your injection pump. 
  • Part Number: FASS DMAX7001
  • Manufacturer; FASS 
  • Product Note: FASS DMAX7001 Diesel Fuel Pump Flow Enhancer For the General Motors 2001 to 2010 6.6L Duramax diesel engine act as a lift pump to supply the needed fuel pressure to support your CP3 fuel injection pump.
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