FASS D-MAX Diesel Fuel Pump Flow Enhancer GM Duramax 6.6L 2001-2016
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
The FASS Dura-Max Flow Enhancer is a supplemental lift pump for the GM 6.6L Duramax. It feeds the CP3 rather than replacing it, taking the suction load off the injection pump and delivering fuel at a steady supply pressure instead of whatever the CP3 can pull on its own.
Fits: GM / Chevrolet 2500 & 3500 Duramax 6.6L
Applications & Part Numbers
| Application | Part Number |
|---|---|
| 2001-2010 | DMAX7001 |
| 2011-2016 | DMAX7002 |
Why It Matters On A Duramax
The Duramax has no factory lift pump. The CP3 pulls fuel all the way from the tank on its own, and that suction load is work the pump was never really meant to do. Adding a Flow Enhancer means the CP3 gets fed instead of having to draw, which is the whole point.
Key Features
- Supplemental lift pump, works with the factory CP3
- Steady supply pressure to the injection pump
- Bolt-on install
- Built in the USA
- Limited lifetime warranty with registration
Looking for filtration too? A Titanium Signature Series system adds 2 micron filtration, water separation and air removal on top of the lift pump function.
Why FASS
FASS does not rush product to market. The company line is “strive for perfection, settle for excellence,” and a sub-0.5% failure rate is what that discipline buys you. Engineered, built and assembled in the United States.
Also in:
- 2001-2005 GM/ Chevrolet 2500 LB7/ LLY
- 2001-2005 GM/ Chevrolet 3500 LB7/ LLY
- 2001-2010 GM/Chevy 3500*
- 2005-2010 GM/ Chevrolet 2500 LBZ/ LMM
- 2005-2010 GM/ Chevrolet 3500 LBZ/ LMM
- 2011-2016 GM/ Chevrolet 2500 LML
- 2011-2016 GM/ Chevrolet 3500 LML
- 2011-2019 GM/Chevy 3500*
- 2020+ GM/Chevy 3500*
- Dodge/RAM*
- FASS Diesel Fuel Systems
- GM/Chevrolet 2500*
- GM/Chevy 3500*
- New Arrivals
- Top Sellers
