SKU: 54117321070

FASS Titanium Signature Series Fuel Lift Pump 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML

Sale price$310.05 Regular price$344.50
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Description

FASS Titanium Signature Series Fuel Lift Pump 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LMLIs it time to update and optimize your Duramax's performance? Unleash the full potential of your 6. 6L Duramax by upgrading to a FASS Fuel System. These pumps are available in multiple optimized flow rates to match everything from stock trucks to higher demand builds. You're looking at a premium, complete fuel system upgrade designed to replace your factory lift pump and completely transform how your diesel delivers fuel. These systems are designed to

Is it time to update and optimize your Duramax's performance? Unleash the full potential of your 6.6L Duramax by upgrading to a FASS Fuel System. These pumps are available in multiple optimized flow rates to match everything from stock trucks to higher-demand builds. You're looking at a premium, complete fuel system upgrade designed to replace your factory lift pump and completely transform how your diesel delivers fuel.

These systems are designed to address common Cummins fuel issues, such as inconsistent fuel pressure, air intrusion, and inadequate filtration, which can affect pump performance and long-term reliability. Whether you're running a stock setup or have turned up the fuel, upgrading to a FASS system means cleaner fuel, more consistent pressure, and added confidence every time you get into the throttle.

Which Flow Rate should you choose?

When upgrading your fuel system, choosing the right GPH (gallons per hour) rating isn't about picking the highest number; it's about matching your pump to your truck's real-world demands. A FASS aftermarket fuel system doesn't just supply fuel; it improves filtration, removes air/vapor, and ensures your injection system gets consistent, reliable pressure. But choosing between 100, 165, 250, and 290 GPH? That's where a lot of people get stuck.

100 GPH: Stock Reliability Upgrade (Stock-600 HP)
  • Perfect for stock trucks or mild setups. If you want to eliminate factory fuel issues and improve reliability without overbuilding your system, this is the ideal choice.
165 GPH: Daily Driver + Towing Sweet Spot (600-1000 HP)
  • Best for trucks with some tuning or regularly towing. This is the most popular option for owners who want extra fuel capacity without going overkill.
250 GPH: Performance Builds (1000-1200 HP)
  • Designed for higher horsepower setups with increased fuel demand. Ideal for trucks running upgraded injectors or pushing harder under load.
290 GPH: Maximum Fuel Delivery (1200-1500 HP)
  • Built for high-performance or future-proof builds. If you’re planning big power or want maximum fuel supply with room to grow, this is the top-tier option.

FASS Fuel Systems engineered the Titanium Series diesel fuel lift pump to be the top-performing, longest-lasting, and most reliable aftermarket filtration system in the diesel industry. The Titanium Series lift pump is capable of supporting your GM Duramax 6.6L diesel engine with enough fuel for multiple fueling system upgrades. A Titanium Series lift pump also offers advanced filtration that helps protect your Duramax's injection system, effectively extending the life of your Injection Pump and Injectors. These benefits include a 2-micron filtration rating, a built-in water-separation filter, and FASS Fuel Systems' patented air/vapor removal process. Duramax diesel engines are known for injector failures; several factors can cause them, and FASS Filtration Systems is designed to eliminate those that are fuel-related.

  • FASS Whisper Technology (FWT) was developed by the engineering team at FASS Fuel Systems to reduce the noise generated by aftermarket diesel lift pumps for fuel and air separation. By using radius cuts, tighter tolerances on all gears, and a high-quality, military-specification coating over the aluminum base, FASS Fuel Systems developed the quietest fuel-air separation system on the market.
  • Performance Radius Cuts (PRC) are an advanced machining technique used to improve fuel flow through the diesel lift pump by creating smooth, flowing cuts in the aluminum housing. This prevents the reintroduction of air and vapor into the fuel and also prevents stagnant fuel pockets from forming in the corner of a 90-degree bend. FASS Fuel Systems Titanium Series Diesel Fuel Pumps are the only Fuel Air Separation System that incorporates these exclusive Performance Radius Cuts; lesser competitors commonly use T-Bone and square 90-degree fittings that can limit fuel flow, cause restrictions, and reintroduce air back into your fuel.
  • Mass Flow Return (MFR) technology is used to continually “polish" your fuel by keeping a positive pressure on the fuel being delivered to the engine and returning the fuel that's not yet needed back to the tank after it has been passed through the filtration process, removing dirt, air, vapor, and water. This means your fuel is constantly moved and cleaned, ensuring your diesel truck always has the freshest, cleanest fuel possible.
  • Bolt-on bracket mounts are another huge benefit to the Titanium Series lift pumps. Old mounting styles required drilling or welding when mounting your new pump. This is simplified with bolt-on brackets that utilize your Chevy's bed bolt, the bolt that secures your truck bed to your frame. Mounting your Titanium Series lift pump takes only minutes, and all brackets are made from machined steel for superior support and strength.
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]
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SKU: 54117321070

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4.1 ★★★★★
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Verified Purchase
Crad
Pawtucket, US
★★★★★ 4
8/10 Front Pocket Wallet
Color: Black (Front Pocket)
It's a pleasing solution for me. The slim, pocketed design fits well in my front pocket. It probably fits other pockets well too. It's not perfect. But, it's solving for an imperfect solution that Apple is takling with their phones. Tap to pay with phones and digital ID will change the market for wallets. The physical size of cards limits how readily you can access any one card. It takes a bit of extra dexterity to pinch or slide some of the cards out. Ideally you'd have 4 on the outside, with remaining cards tucked in the center pocket. I just need more than 1/4 inch of card face to slide one out readily.
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Reviewed in the United States on April 12, 2026
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Verified Purchase
David Poll
Fort Morgan, US
★★★★★ 5
Very nice wallet.
Color: Carhartt Brown (Trifold)
Very nice.
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Reviewed in the United States on April 22, 2026
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Verified Purchase
D. A.
Pawtucket, US
★★★★★ 5
Size
Color: Black (Bifold)
It’s not a thick wallet, which is what my husband likes. Makes sitting or driving for long periods with it in his back pocket better. Has everything larger wallets have. Will purchase it again.
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Reviewed in the United States on March 19, 2026
W
William P
Dallas, US
★★★★★ 5
Rugged wallet built to last (even if wallets themselves are becoming obsolete)
Color: Black (Trifold), Color: Black (Trifold)
This is a really well-made wallet. If you’re familiar with Carhartt products, the construction here is exactly what you’d expect: tough, practical, and clearly designed to take some abuse. The material is "700D nylon duck fabric", which feels thick and durable—more like a piece of work gear than a fashion accessory. In the photos you can see the tight stitching, heavy canvas-like texture, and reinforced seams, all of which suggest it should last for years. It feels like the kind of wallet that could live in a back pocket, get sat on, tossed around, and still keep going. Inside, the layout is simple and functional. The see-through mesh ID window is one of my favorite touches—it makes it easy to show an ID without removing it. The card slots are snug and the trifold layout keeps everything organized. There’s also a small zippered pocket, which you can see in the photos along the side. It’s not huge, but it can hold a few coins or maybe a couple of small keys. The wallet also includes RFID blocking, which is nice if you’re concerned about wireless card scanning. On the flip side, that also means you can’t just tap the wallet against a reader for contactless payments. You’ll need to take the card out first. Carhartt also advertises water resistance, which makes sense given the nylon construction. Realistically, most of us aren’t dunking our wallets in water, but it’s nice to know it could handle rain or the random spill (though come-on! How often does that happen with a wallet??) One interesting thing: wallets themselves are starting to feel a little outdated. I rarely carry one anymore, and most of my family uses phone wallets or digital payments. But if you’re someone who still likes having a physical wallet for cards, ID, and some cash, this is a solid one. It’s a simple, rugged, no-nonsense wallet that should last a long time - very much in line with the Carhartt reputation. If you’re still in the wallet camp, this is a dependable choice. Plus it makes a nice gift.
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Reviewed in the United States on March 2, 2026
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cella wilson
Dallas, US
★★★★★ 5
Sturdy, well-made wallet
Color: Black (Trifold)
Sturdy, well-made wallet, soft to the touch. nice looking. seems comfortable enough in the back pocket. good size. made from quality materials.
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Reviewed in the United States on May 1, 2026

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