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Accessories & Specialty

  • QFS Fuel Pump Installation Kit - Performance, HFP-K125-190 QFS
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    Fuel Pump Installation Kit - Performance, HFP-K125-190 QFS

    $19.98
    HFP-K125-190-BC
  • QFS Fuel Pump Installation Kit - Performance, HFP-K1168 QFS
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    Fuel Pump Installation Kit - Performance, HFP-K1168 QFS

    $19.98
    HFP-K1168-BC
  • QFS Fuel Injector Connector - Performance, HFP-EV6F-EV1M-W-0 QFS
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    Fuel Injector Connector - Performance, HFP-EV6F-EV1M-W QFS

    $7.98 - $56.98
    HFP-EV6F-EV1M-W-0-BC
  • QFS Fuel Injector Connector - Performance, HFP-EV6F-DNSM-W QFS
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    Fuel Injector Connector - Performance, HFP-EV6F-DNSM-W QFS

    $7.98 - $56.98
    HFP-EV6F-DNSM-W-0-BC
  • QFS Fuel Hose, HFP-FH88 QFS
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    Fuel Hose, HFP-FH88 QFS

    $9.98 - $15.98
    HFP-FH88-0-BC
  • QFS Fuel Hose, HFP-FH-VPK QFS
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    Fuel Hose, HFP-FH-VPK QFS

    $47.98
    HFP-FH-VPK-BC
  • Continental GM Continental VDO Flex Fuel Sensor E85 13577429, + AN/Barbed Fittings & Adapter Plug
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    Continental Flex Fuel Sensor SE1004S - OEM Replacement for GM Vehicles, CON-SE1004S | QFS

    $74.98 - $125.98
    CON-SE1004S-0
  • QFS Fuel Injector Connector - Performance, HFP-EV6F-EV1M-NW-0 QFS
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    Fuel Injector Connector - Performance, HFP-EV6F-EV1M-NW QFS

    $7.98 - $56.98
    HFP-EV6F-EV1M-NW-0-BC
  • Phenix Billet P Clamp (All Sizes + Colors)
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    Billet P Clamp (All Sizes + Colors)

    $3.39 - $12.00
    PHX-P512-3-0
  • QFS Fuel Hose, HFP-FH89 QFS
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    Fuel Hose, HFP-FH89 QFS

    $9.98 - $15.98
    HFP-FH89-0-BC
  • QFS Fuel Injector Connector - Performance, HFP-EV6F-OBD2-W-0 QFS
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    Fuel Injector Connector - Performance, HFP-EV6F-OBD2-W QFS

    $7.98 - $56.98
    HFP-EV6F-OBD2-W-0-BC
  • QFS Fuel Pressure Gauge, HFP-FPG QFS
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    Fuel Pressure Gauge, HFP-FPG QFS

    $17.98 - $23.98
    HFP-FPG-0-BC
  • QFS Fuel Injector Connector - Performance, HFP-EV1F-DNSM-W-0 QFS
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    Fuel Injector Connector - Performance, HFP-EV1F-DNSM-W QFS

    $7.98 - $56.98
    HFP-EV1F-DNSM-W-0-BC
  • QFS Fuel Hose, HFP-FH1010 QFS
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    Fuel Hose, HFP-FH1010 QFS

    $9.98 - $11.98
    HFP-FH1010-0-BC
  • QFS Fuel Pump Fitting, QFS-FTY-516 QFS
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    Fuel Pump Fitting, QFS-FTY-516 QFS

    $31.98
    QFS-FTY-516-BC
  • QFS Fuel Injector Connector - Performance, HFP-EV1-P-0 QFS
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    Fuel Injector Connector - Performance, HFP-EV1-P QFS

    $7.98 - $56.98
    HFP-EV1-P-0-BC

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Understanding Accessories and Specialties

Accessories and specialties are essential components that support the performance and reliability of a vehicle’s fuel system. These parts ensure proper fitment, prevent leaks, and maintain efficiency in both standard and high-performance applications. From replacement parts to specialty upgrades, understanding these items helps extend the life of your vehicle and ensures consistent operation on the road or trail.

What are Accessories and Specialties?

What are Accessories and Specialties?

Accessories and specialties include small but vital components that keep a fuel system functioning correctly. Items such as O-rings, seals, gaskets, and fuel lines may seem minor, but they play a significant role in maintaining system integrity. Without them, even the most advanced fuel pump or injector cannot deliver reliable performance.

Types of Accessories and Specialties

Types of Accessories and Specialties

There are many types of accessories and specialties designed to meet different needs. Common examples include replacement seals, installation hardware, fuel line connectors, and full assembly kits. Some are intended for OEM-style replacement while others are built for high-flow or performance applications. Selecting the right type ensures your vehicle’s fuel system remains dependable and properly fitted.

Signs of a Failing Accessory and Specialty

Signs of a Failing Accessory and Specialty

Failing accessories or specialty parts can lead to leaks, pressure loss, or inconsistent fuel delivery. Common warning signs include the smell of fuel, visible cracks in seals or hoses, or difficulty maintaining pressure. Ignoring these issues can cause damage to other components in the fuel system. Replacing worn accessories promptly is key to keeping your vehicle safe and reliable.

Choosing the Right Accessories and Specialties for Your Vehicle

Selecting the correct accessories and specialties ensures your vehicle’s fuel system performs efficiently and reliably. The right choice depends on whether you are restoring an OEM setup or upgrading for higher performance. Considering compatibility, quality, and intended use helps avoid common issues such as leaks, poor fit, or premature wear. The goal is to match parts that deliver long-term durability and consistent operation.

OEM Replacement vs. Performance Upgrades

OEM Replacement vs. Performance Upgrades

OEM replacement accessories are designed to restore your vehicle to factory specifications, making them ideal for reliability and everyday driving. Performance upgrades, on the other hand, are built to handle higher flow rates, increased pressure, or more demanding conditions. Deciding between OEM and performance options depends on your vehicle’s purpose, whether you prioritize stock dependability or enhanced output for racing and off-road use.

Compatibility and Fitment

Compatibility and Fitment

Proper compatibility is critical when choosing accessories and specialties. Even high-quality parts can fail if they do not fit correctly with your fuel pump, lines, or assemblies. Always confirm that seals, gaskets, or connectors match your vehicle’s specifications before installation. Direct-fit components simplify the process, reduce the risk of leaks, and help ensure the fuel system maintains consistent performance under varying driving conditions.

Accessories and Specialty Assemblies

Accessories and Specialty Assemblies

Some applications require complete accessory or specialty assemblies, which bundle multiple parts into one convenient package. These kits often include O-rings, tank seals, clamps, and gaskets, designed to work together for a precise fit. Assemblies save time during installation and minimize the chance of mismatched components. They are especially useful for larger maintenance projects or performance upgrades where reliability and consistency are a top priority.

Installation and Maintenance Tips

Installing and maintaining accessories and specialties correctly ensures maximum reliability. Proper techniques reduce the risk of leaks, prevent premature wear, and extend the life of the entire fuel system. From following installation guidelines to adopting routine maintenance practices, taking care of these smaller parts plays a major role in overall performance. Simple steps during installation and upkeep can prevent costly fuel system failures.

Installation Guidelines

Installation Guidelines

When installing accessories such as O-rings, gaskets, or clamps, always start with clean surfaces free of debris or old sealant. Use appropriate lubricants where recommended, and never force-fit parts that appear incompatible. Following torque specifications and placement instructions reduces the risk of damage. Taking extra time during installation ensures a proper seal, prevents fuel leaks, and provides confidence that the system will function safely.

Maintenance Practices

Maintenance Practices

Routine maintenance of accessories and specialties is key to long-term performance. Inspect seals, hoses, and connectors for cracks or wear during every major service interval. Replace any parts that show signs of damage rather than waiting for a failure. Keeping a maintenance log helps track replacement intervals, ensuring consistent reliability. Preventative care not only protects your fuel system but also reduces unexpected downtime.

Troubleshooting Common Issues

Troubleshooting Common Issues

Fuel system issues can often be traced to small components like gaskets, O-rings, or lines. Signs of failure may include fuel odor, visible leaks, or drops in fuel pressure. Troubleshooting begins with a visual inspection followed by testing for secure connections and proper sealing. Replacing faulty accessories quickly is the most effective way to restore normal operation and prevent additional wear on other components.

Enhancing Performance with Accessories and Specialty Upgrades

Upgrading accessories and specialties can significantly improve fuel system performance. High-quality seals, gaskets, and fuel lines prevent leaks under pressure, while complete kits provide all-in-one solutions for performance applications. These upgrades are especially valuable for vehicles running high horsepower, forced induction, or ethanol blends. Choosing enhanced components helps support consistent fuel delivery and adds an extra layer of reliability to your build.

Accessories and Specialties

Accessories and Specialties

Modern fuel systems rely on durable accessories and specialty parts to maintain peak performance. Upgraded O-rings, clamps, and seals provide stronger resistance to heat and ethanol-based fuels compared to basic stock components. Investing in higher-grade accessories not only protects against leaks but also supports consistent fuel flow, making them a practical upgrade for anyone seeking greater reliability in demanding driving conditions.

Fuel Pumps

Fuel Pumps

Upgraded accessories and specialties play a supporting role in maximizing fuel pump performance. High-flow pumps require durable seals, clamps, and connectors capable of withstanding higher pressures. Performance assemblies that include pumps and accessories together offer a complete solution for enthusiasts. By pairing quality accessories with the right fuel pump, you ensure consistent fuel delivery, reduce stress on the system, and extend overall component life.

O-Rings, Tank Seals, Gaskets, and Lines

O-Rings, Tank Seals, Gaskets, and Lines

O-rings, tank seals, gaskets, and fuel lines are often small parts, but they are critical to system reliability. High-performance options are designed to resist ethanol, heat, and pressure better than standard replacements. Upgrading these components can reduce maintenance issues, prevent leaks, and protect against costly system failures. Consistently replacing and upgrading these parts ensures that the entire fuel system operates at maximum efficiency.

Comprehensive Accessories and Specialty Kits

Comprehensive Accessories and Specialty Kits

Comprehensive kits provide a full set of accessories and specialty parts for complete system coverage. These kits often include everything from seals and gaskets to clamps and lines, ensuring all parts work together seamlessly. They save time, reduce the risk of mismatched components, and are ideal for performance builds or complete fuel pump replacements. Kits provide convenience, reliability, and peace of mind for vehicle owners.

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About Us

quantum fuel systems blk

QFS was born from a desire for freedom: the freedom to keep your ATV, dirt bike, car, or truck running with dependable, OEM-quality, and affordable fuel systems. We want you back on the road without breaking the bank. Skip the costly dealership—our replacement parts ship directly to you and are easy to install. Enjoy OEM performance with unbeatable US-based support and a lifetime warranty. Are you with us?

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