SKU: 58669531526

Fleece Performance PowerFlo In-Tank Lift Pump Assembly 11-16 6.6L LML GM Duramax

Sale price$359.55 Regular price$399.50
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Fleece Performance PowerFlo In-Tank Lift Pump Assembly 11-16 6.6L LML GM DuramaxFinally, a seamless, high performance lift pump system for your LML Duramax that will supply consistent fuel for your stock truck, or up to 800 rear wheel horsepower builds. This is also a key part to add to your truck if you are looking to obtain the best possible fuel economy, efficiency, and longevity out of your LML fuel system. Not only is this a high performance lift pump system, but this is a direct replacement for the OEM in tank sending unit

Finally, a seamless, high performance lift pump system for your LML Duramax that will supply consistent fuel for your stock truck, or up to 800 rear wheel horsepower builds. This is also a key part to add to your truck if you are looking to obtain the best possible fuel economy, efficiency, and longevity out of your LML fuel system. Not only is this a high performance lift pump system, but this is a direct replacement for the OEM in tank sending unit and easily installs in half the time of other lift pump systems. No longer will you have filters hanging down low or noisy frame mounted pumps!

If you do not know already, Duramax trucks do not come with any lift pump supplying fuel to the injection pump. This added stress on the fuel system can create poor mileage and low power especially under a loaded situation. The factory CP4 injection pumps are substantially weaker than that of the previous model years CP3. Not having a steady reliable flow of fuel will increase the risk of the CP4 failing. Adding this pump from Fleece will drastically reduce the chance of CP4 failure. Also, any time a tuner is added to these trucks, more fuel is demanded out of the injection pump and if there is no fuel supplying that pump, you are loosing power! Adding a lift pump system to your LML will help improve overall efficiency and mileage. They are however absolutely necessary for anyone that wants to make power on these trucks. Until now, the only options were frame mounted pumps that look out of place on your LML Duramax. No more noisy lift pumps, cutting holes in your fuel tank, or quarter tank issues. Fleece's drop-in lift pump allows for silent operation, utilizes the factory connections for an easy installation and its active fill bucket technology eliminates the need for a draw straw or tank sump. The PowerFlo Lift Pump operates with two OEM quality gerotor pumps that have surpassed 12,000 hours of durability testing and together flow 170 GPH @ 15 psi, making the PowerFlo Lift Pump capable of supporting 800+ RWHP.

The PowerFLo Lift Pump is also backed by a limited LIFETIME WARRANTY!

DIRECT OEM IN-TANK REPLACEMENT: The PowerFlo Lift Pump retains the factory water-in-fuel sensor, factory fuel heater, factory fuel lines, and installs in less than half the time of other high flow lift pumps.

DUAL GEROTOR: Two is always better than one, and the PowerFlo delivers with two OEM quality gerotor pumps, increasing flow capacity and reliability over the factory pump. Capable of supporting up to 800 hp.

SEAMLESS INTEGRATION: The active fill bucket eliminates the need for tank sumps, draw straws, additional air filtration, and the quarter tank issues typically encountered when seeking a higher flow lift pump to meet your engine's needs.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 58669531526

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4.2 ★★★★★
Based on 16 reviews
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Verified Purchase
Lucas Zoll
Omaha, US
★★★★★ 5
Recommended replacement parts
Worked as advertised, quicksilver parts for replacement on alpha drive gen 2 outdrive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
C
Verified Purchase
charscars
Grantham, US
★★★★★ 5
Very complete kit
This Kit has everything you need to change your waer pump impellor. It comes with directions that are easy to follow, but there re plenty of videos available to help. The Quicksilver kit is priced well and was delivered quickly.
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Reviewed in the United States on November 13, 2025
E
Verified Purchase
Eric Moore
Bozeman, US
★★★★★ 5
Perfect OEM fit
Fixed my impeller on my Mercury Salt Water 115. Best done as a two man job. Lots of videos available online .
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Reviewed in the United States on April 14, 2026
A
Verified Purchase
Aiden
Boise, US
★★★★★ 4
Fits 2001 Bayliner
This product was definitely different than the original I have a 2001 Bayliner with a 3.0 MerCruiser and an alpha one second GEN drive The kit worked but the bottom gasket had a weird cut different than the original I added a gasket maker just in case (Yamaha Lube) Brand! All in all kit was fine, One thing to note is the directions that come with the kit at least for my version we’re not for the same alpha one second GEN 4 stroke kit that I got they were for a two-stroke in the pictures didn’t look the same as the parts that I had got which is fine but it’s miss leading when you send a 4 stroke kit but 2 stroke 90hp to 200hp alpha one directions! If it craps out this review will change
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Reviewed in the United States on June 30, 2020
A
Verified Purchase
Air Assault
Houston, US
★★★★★ 5
Super great product. Has the power and functionality to get you repairing fast!
Super great product. Has the power and functionality to get you repairing fast! Fully recommend this and it has worked great since I've owned it. Still going strong in the durability and design looks like it will keep it going strong for many years. Highly highly recommend buying this. Will work in Kuwait, Iraq, UAE, and Saudi. Good for Camps around the CENTCOM area!
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Reviewed in the United States on October 6, 2025

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