Premium Fuel Pump Parts To Fuel Your Adventure
The widest selection of the most reliable, high-performance fuel system components
- Difficulty Starting Your Vehicle
- Decreased Fuel Efficiency
- Low Fuel Pressure
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Guaranteed Fit
American Owned
Lifetime Warranty
U.S. Based support
FEATURED CATEGORIES
Trusted by the Industry's Leading Distributors for Over Twenty Years
- Royal Distributing
- WPS
- Whites Powersports
- FuelPerformance
- JM ATV
What We're Best Known For
At Quantum Fuel Systems, we specialize in fuel system solutions tailored for powersports, muscle cars, and off-road platforms. From high-demand fuel pump assemblies to direct-fit hangers, we’re trusted by enthusiasts and mechanics alike. Our lineup includes precision-engineered parts for Polaris, Harley-Davidson, KTM, and classic American icons like Chevy trucks, LS swap builds, and Fox Body Mustangs—each backed by durability, flow-tested reliability, and ethanol compatibility.
Polaris
Built for rugged terrain and long trail rides, our Polaris fuel pump assemblies and kits ensure off-road reliability. Whether you're replacing a stock unit or upgrading performance, QFS parts are engineered for OE fitment with high-flow capabilities. Designed to combat ethanol wear and trail vibration, our Polaris solutions keep your ATV or UTV running strong, mile after dusty mile.
Harley-Davidson
Our Harley-Davidson fuel pump replacement kits and assemblies are crafted for longevity and easy installation. Whether you're riding cross-country or cruising around town, QFS pumps deliver consistent fuel pressure and ethanol resistance. From Touring to Softail models, our parts match OE specs and are tested for road-ready performance under high mileage and heat. QFS is the first aftermarket fuel pump manufacturer to provide a full line of direct-fit, OE-quality fuel pump assemblies for a wide range of Harley-Davidson models.
KTM
KTM riders demand reliability on the trail and track, and that’s where QFS shines. Our KTM fuel pump kits and assemblies are precision-engineered for motocross and enduro performance, offering clean delivery, heat resistance, and fast installation. Whether you're replacing a worn-out OEM unit or upgrading for competition, our ethanol-safe pumps keep your engine dialed in and race-ready.
Square Body Trucks
Revive and modernize your classic Square Body Chevy or GMC with our drop-in fuel hangers and complete fuel systems. QFS kits simplify upgrades with OE-style fitment and modern fuel flow specs, perfect for restorations or powertrain swaps, most notably - the LS swap. Built to support EFI conversions, these fuel pump systems are E85-compatible and engineered for performance and reliability.
LS Swaps
No LS swap is complete without a dependable fuel system. QFS drop-in hangers and high-performance fuel systems are designed for seamless integration into a wide range of swap projects. With flow rates supporting up to 900+ HP, our E85-compatible systems deliver precise pressure and tuning flexibility, ideal for street, strip, or track builds.
Fox Body Mustangs
Get the most out of your Fox Body Mustang with QFS drop-in fuel hangers and complete systems built for 5.0L EFI performance. Designed to fit OE Fox Body fuel tanks and built to meet fuel demands of the Coyote 5.0 engine. Whether you're building a street machine or weekend racer, our systems offer higher flow rates, E85 compatibility, and exact-fit installation. Keep your Mustang responsive, consistent, and ready for more throttle.
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QFS PROGRAMS
Proud Supporter of
HELPING WARRIORS AND THEIR FAMILIES THRIVE
As a Proud Supporter, Quantum Fuel Systems joins Wounded Warrior Project® (WWP) in their effort to deliver life-changing programs to over 100,000 wounded warriors, their families, and caregivers.
We believe in the freedom to keep your ride running without breaking the bank. Whether it’s an ATV, dirt bike, or truck, QFS gets you back on the road with parts that match OEM performance at a fraction of the dealership cost.
How QFS Delivers
Find the Part. Finish the Job. Fuel More Memories.
Getting your vehicle back on the road, trail, or water starts with one thing: the right part. Here's exactly how we make sure you get it, every time, without the guesswork.
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Step 01
Find the Part
Add your vehicle to confirm exact fitment before you buy. No guessing, no surprise returns, no wasted weekend waiting on the wrong part. Enter your vehicle once and see only what's actually engineered to fit it, even if it's a machine other brands stopped supporting years ago.
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Step 02
Finish the Job
Once fitment is confirmed, ordering is simple and checkout is secure. Most orders ship fast from our US-based warehouse, no backorders, no "call for availability." Your part arrives ready to install, with everything you need in the box.
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Step 03
Fuel More Memories
Install it yourself or hand it to your mechanic. Either way, you get OEM-or-better performance, real support from people who've actually turned a wrench, and a TRUE lifetime warranty that replaces the part for as long as you own the vehicle.
The QFS Standard
What You Can Expect From Quantum Fuel Systems
When you buy from QFS, you're not just getting a part. You're getting the follow-through that goes with it: fitment you can trust, shipping that doesn't leave you stranded, and a team that backs every pump, regulator, and filter we build.
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The Only TRUE Lifetime Warranty
Unlike competitors whose warranties are voided if you try to swap the fuel pump yourself and not take it to a licensed repair shop, we won't void your warranty. We respect the right to repair.
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OEM or Better Performance
Every QFS component is engineered to match or exceed factory specs, so your fuel system runs the way it should, not the way a bargain part hopes it will.
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Expert Support
Talk to technicians who've actually installed these parts, not a chatbot reading a script. If you get stuck, we walk you through it.
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Parts for the Machines Others Give Up On
From daily drivers to older, discontinued, and hard-to-find platforms, our catalog covers vehicles other brands stopped supporting years ago.
Whatever's next, a weekend trail run, a road trip, or race day, you can head into it knowing your fuel system won't be the reason it gets cut short.