When your high-performance build demands a reliable and robust fuel supply, the choice of fuel pump becomes critical. The Aeromotive Stealth 340 series has earned a formidable reputation among enthusiasts and professional builders for delivering the consistent flow and pressure needed to support serious horsepower. These in-tank pumps are engineered to be quiet, efficient, and powerful, making them a top choice for everything from street-driven muscle cars to all-out race machines.
Selecting the right model, however, depends on your specific vehicle, fuel system configuration, and power goals. Whether you need a universal pump, a vehicle-specific hanger assembly, or a complete fuel cell system, the Stealth 340 family has a solution. This roundup breaks down eight key Aeromotive products to help you identify the perfect component for your project, ensuring your engine gets the fuel it needs without compromise.
Our Top Aeromotive Stealth 340 Fuel Pump Picks
- Aeromotive 11540 340 Series Stealth Intank Fuel Pump
- Aeromotive 11542 340 Series Stealth Intank Fuel Pump
- Aeromotive 11569 340 Series Intank Fuel Pump for GM
- Aeromotive 18665 340 Stealth Fuel Cell, 20 Gallon
- Aeromotive 18638 340 Intank Fuel Pump and Hanger for Mustang
- NOCO GENIUS1 Smart Battery Charger and Maintainer
- Aeromotive Stealth 340 In-Tank Fuel Pump 11140
- Aeromotive Stealth 340 Fuel Pump Kit 11142
Aeromotive 11540 340 Series Stealth Intank Fuel Pump
This center-inlet version of the Stealth 340 pump is a powerhouse for high-performance applications. It delivers a robust flow rate of over 340 liters per hour at 40 PSI, making it an excellent choice for both EFI and carbureted engines running on gasoline or E85. Its high-output capability exceeds standard pump flow rates by more than 30%, providing the fuel volume necessary for significant horsepower gains.
The compact and lightweight design allows it to bolt directly into many existing fuel hanger assemblies, offering a relatively straightforward installation process. This universal fit makes it a versatile option for a wide range of popular aftermarket setups. It is particularly well-suited for forced induction projects, as its enhanced flow characteristics can reliably support the demands of turbocharged or supercharged systems.
Aeromotive 11542 340 Series Stealth Intank Fuel Pump
Functionally identical to the 11540 model in terms of performance, the Aeromotive 11542 distinguishes itself with an inline inlet design. This specific configuration can be crucial for fitting into certain fuel tank setups where hose routing or existing hardware makes a center inlet impractical. It provides the same exceptional 340 LPH flow, ensuring your high-horsepower engine receives adequate fuel.
Like its counterpart, this pump is built for versatility, working with EFI and carbureted systems and compatible with both gasoline and E85 fuels. Its ability to seamlessly integrate into many OEM and aftermarket hangers simplifies the upgrade process. For builders working on turbo or supercharged applications, this pump offers the reliable, high-volume fuel delivery required to make big power safely and consistently.
Aeromotive 11569 340 Series Intank Fuel Pump for GM
This model brings the proven performance of the Stealth 340 pump to owners of GM vehicles. It is specifically designed for compatibility with popular GM applications, ensuring a direct fit that saves time and effort during installation. The pump retains the high-flow 340 LPH rating, providing the fuel necessary for modified LS and other GM-based engines.
Beyond its vehicle-specific design, it features a robust turbine pump mechanism engineered for increased durability. This construction makes it suitable for both continuous and pulse-modulated operation, offering longevity and reliability. With its E85 compatibility and center inlet design, it is a comprehensive solution for GM enthusiasts looking to upgrade their fuel system for more power.
Aeromotive 18665 340 Stealth Fuel Cell, 20 Gallon
For projects that extend beyond a simple pump swap, the Aeromotive 18665 is a complete 20-gallon fuel cell system featuring an integrated Stealth 340 pump. This is the ultimate solution for race cars, dedicated track vehicles, or any build requiring a full fuel system overhaul. It combines a high-quality fuel cell with the performance of the Stealth 340 in one integrated package.
Aeromotive is known for applying aerospace-level tolerances and engineering to its products, and this fuel cell is no exception. It represents the pinnacle of performance fuel delivery, designed to provide a consistent and reliable fuel source under the most demanding conditions. This all-in-one system eliminates compatibility guesswork, providing a proven foundation for a high-performance fuel system.
Aeromotive 18638 340 Intank Fuel Pump and Hanger for Mustang
This is a complete drop-in solution for 1986-1998 Ford Mustang owners. Instead of just the pump, this kit includes the entire pump and hanger assembly, designed to directly replace the OEM unit. This makes for a significantly easier installation, as no modification or fabrication of the hanger is required.
The kit is rated to support up to 850 horsepower on gasoline for forced induction engines and even higher for naturally aspirated carbureted setups. With clear horsepower ratings for both gasoline and E85, you can confidently select this kit knowing it meets the needs of your specific build. It is the definitive fuel pump upgrade for Fox Body and SN-95 Mustang enthusiasts.
NOCO GENIUS1 Smart Battery Charger and Maintainer
While not a fuel pump, a reliable battery charger is an essential tool for any garage, especially when working on fuel systems that may require cycling the ignition or testing components. The NOCO GENIUS1 is a compact yet powerful unit that serves as a battery charger, maintainer, and desulfator. It helps ensure your vehicle’s battery is in top condition, which is critical for consistent fuel pump operation.
It is compatible with 6V and 12V lead-acid and lithium-ion batteries, making it versatile for cars, motorcycles, and other powersports vehicles. Its integrated thermal sensor adjusts the charge based on ambient temperature, preventing overcharging and undercharging. This precision charging extends battery life and provides peace of mind when your vehicle is sitting between drives or during extended repair sessions.
Aeromotive Stealth 340 In-Tank Fuel Pump 11140
This model represents another variant within the versatile Stealth 340 family. As a high-performance in-tank fuel pump, it is engineered to deliver the reliable flow and pressure that the series is known for. Its specific design parameters may cater to different installation requirements or vehicle applications, offering enthusiasts another option for their fuel system upgrade.
The core benefits remain consistent: high flow for supporting substantial horsepower, compatibility with various fuels including E85, and a design focused on quiet, efficient operation. For those researching the perfect pump for their project, this model is worth investigating to see if its specifications align with the specific demands of their engine and fuel system layout.
Aeromotive Stealth 340 Fuel Pump Kit 11142
The Aeromotive 11142 is marketed as a kit, which often includes more than just the pump itself. Such kits typically provide essential components like installation hardware, pre-filter socks, and wiring connectors, reducing the need to source parts separately. This can be a major advantage for ensuring a clean, professional, and reliable installation.
By offering a more complete package, this kit simplifies the purchasing process and helps avoid installation delays. It is designed for the builder who wants a comprehensive solution straight out of the box, leveraging the performance of the Stealth 340 pump with the convenience of included ancillary parts for a smoother overall upgrade experience.
Buying Guide: What to Look For in a High-Performance Fuel Pump
When you’re building a performance engine, choosing the right fuel pump is one of the most critical decisions you’ll make. It’s the heart of your fuel system, and getting it wrong can mean the difference between a reliable powerhouse and a frustrating project. I’ve learned through experience that you can’t just pick the pump with the biggest flow number and call it a day. You need to think about your entire setup.
First, you need to be brutally honest about your power goals. The Aeromotive Stealth 340 fuel pump, for example, is rated to support up to 750 horsepower in a carbureted application or 650 horsepower with fuel injection. If your build is aiming for 900 horsepower, this isn’t the pump for you, and you’d need to look at a twin setup or a larger single pump. Matching the pump’s capability to your engine’s actual needs prevents you from wasting money on overkill or, worse, buying a pump that can’t keep up.
Next, consider the installation. The Stealth 340 is designed as an in-tank pump, which is great for reducing noise and keeping the pump cool by submerging it in fuel. If you’re replacing an old in-tank pump, this is a direct-fit style for many applications. However, it requires modifying your existing fuel tank sending unit or using a dedicated sump or fuel cell. An external pump might seem easier to install, but it often comes with its own set of heat and noise issues. Think about your skill level and willingness to modify your fuel tank.
Electrical demands are another huge factor. A high-performance pump like this draws significant amperage. You absolutely must upgrade your wiring with a dedicated relay and a heavy-gauge power wire running directly from the battery. Relying on the factory wiring is a recipe for failure; the pump will be starved for voltage, flow less fuel, and likely burn out prematurely. I always pair a new pump with a robust wiring kit—it’s non-negotiable for reliability.
Finally, think about the future. Are you planning on adding a nitrous system or a turbocharger next year? It’s often smarter to install a pump that has a little more headroom than you currently need. This saves you from having to do the job all over again later. The Aeromotive Stealth 340 fuel pump sits in a sweet spot for a huge range of popular street and strip builds, offering a great balance of flow, in-tank convenience, and proven durability. Make sure your choice aligns not just with your current setup, but with your plans for tomorrow.
Frequently Asked Questions
How loud is the Aeromotive Stealth 340 fuel pump?
This is one of the first things people want to know, especially if it’s going in a street car. In my experience, the Stealth 340 is noticeably quieter than most external race pumps, but you will likely hear a distinct whine from inside the cabin, especially when you first turn the key to prime the system. Because it’s mounted in-tank, the fuel and the tank itself act as sound dampeners. It’s not obnoxious, but if you’re expecting complete silence, you might be surprised. It’s the sound of performance.
Can I run E85 fuel with this pump?
Yes, you can. Aeromotive designs the Stealth 340 to be compatible with gasoline, racing fuels, and E85. The internal components and seals are made from materials that can withstand the corrosive nature of ethanol blends. However, it’s crucial to remember that E85 requires a much higher fuel flow rate—roughly 30-40% more—than gasoline for the same horsepower level. So, while the pump itself is E85-compatible, its effective horsepower support will be lower when running that fuel. Make sure to recalculate your flow needs if you’re switching to E85.
Do I need to use a fuel pressure regulator with the Stealth 340?
Absolutely, yes. This is a high-flow, high-pressure pump. It is not self-regulating. Without a quality fuel pressure regulator in your system, your fuel pressure will be all over the place, which can lead to a dangerously rich or lean condition and potentially damage your engine. You need a regulator to maintain a consistent pressure at the carburetor or fuel injectors. This is not an optional component; it’s a mandatory part of the installation.
What kind of warranty does Aeromotive offer on this pump?
Aeromotive typically backs the Stealth 340 fuel pump with a one-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship. It’s important to buy from an authorized dealer to ensure your warranty is valid. Also, be aware that warranties usually do not cover issues caused by improper installation, like running the pump dry or using inadequate wiring, so follow those instructions carefully.
My pump seems to be getting hot. Is this normal?
It’s normal for any electric fuel pump to generate some heat during operation. The key advantage of an in-tank pump like the Aeromotive Stealth 340 fuel pump is that it’s cooled by the surrounding fuel. If your pump is getting excessively hot to the point you’re concerned, the most common cause is a low fuel level. Try not to let your tank run below a quarter full, as this can expose the pump and cause it to overheat. Also, double-check your voltage at the pump; low voltage can make the motor work harder and generate more heat.