null
QFS Fuel Pump Assembly - Performance, QFS-A80HV QFS

Click to Enlarge

Fuel Pump Assembly - Performance, QFS-A80HV QFS

$326.98
(No reviews yet) Write a Review
SKU:
QFS-A80HV-BC
MPN:
QFS-A80HV
UPC:
840477717359
Availability:
Ships in 4-6 business days
Weight:
1.11 LBS

  • SIGNIFICANT
    SAVINGS

  • EASY
    INSTALLATION

  • COMPREHENSIVE
    SUPPORT

The QFS-A80HV is a direct drop-in 340LPH high volume fuel pump assembly for 1999-2003 Chevrolet Silverado 1500 and GMC Sierra 1500 pickups. Perfect for forced induction applications requiring significantly more volume beyond what the stock fuel pump can provide. Quantum 340LPH direct drop-in fuel pump assemblies eliminate the problematic venturi canister design found in all 1995-2005 GM trucks, vans, and SUV. Previously, installing a high volume 255LPH or 340LPH fuel pump into an OEM GM canister meant cutting "windows" into the sides of the bucket, thereby completely disabling the venturi function and the ability of the canister to stay full during cornering or acceleration, which inevitably leads to overheating of the fuel pump. The bandaid solution was to keep the tank at 1/4-1/2 full or above at all times. Quantum 340LPH assembly resolves the inadequacies of the OEM canister design, allowing the tank to be run down to empty just like stock.

Features & Benefits

  • Clean sheet canister design eliminates unreliable venturi setup, and allows tank to be run to empty
  • High Volume QFS 340LPH turbine fuel pump preinstalled, 100% gasoline and/or E85 compatible
  • Ethanol safe PTFE/ teflon corrugated flex hose and teflon coated wiring throughout
  • Updated 40 amp bulkhead connector to handle additional amperage load of high volume pump
  • New float arm, sending unit, tank seal, and 4-way wiring connector included

    • This part fits a variety of different applications including Chevrolet, GMC. Please use the year make model dropdown to confirm your specific vehicle fitment.

    WARNING

    This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.

    Fuel Type:
    E85/Flex
    Pump Placement:
    In-Tank
    Aftermarket Type:
    Performance
    Brand Name:
    Quantum
    There is a one-year limited warranty on this product. This warranty only applies to the original customer and is non-transferable. Improper use or installation of the product voids this warranty, and Quantum is not responsible for incidental costs resulting from the failure of the product. Please contact our technical support directly prior to making a warranty request.

    QFS-A80HV Performance Fuel Pump Assembly for 1999 to 2003 Chevy Silverado and GMC Sierra 1500

    If you have spent years chasing horsepower on the track and in the garage, you should know exactly what happens when a stock fuel pump cannot keep up with a boosted build. The QFS-A80HV is a 340LPH direct drop-in assembly engineered to solve that problem for 1999 to 2003 GM trucks.

    High-Volume 340LPH Pump Built for Forced Induction

    High-Volume 340LPH Pump Built for Forced Induction

    When you add boost or nitrous, fuel demand climbs fast. Our 340LPH turbine pump delivers the volume your engine needs to stay safe under load. Stock pumps can fall flat on their face at high RPM, and this one is built to keep pushing when horsepower numbers climb.

    Engineered to Solve the GM Venturi Canister Problem

    Engineered to Solve the GM Venturi Canister Problem

    The stock 1995 to 2005 GM canister uses a venturi setup that overheats the pump when fuel runs low. The old workaround was cutting windows into the bucket, which kills the design completely. Our clean sheet canister fixes that for good and lets you run the tank down to empty.

    Complete Assembly With Everything You Need to Install

    Complete Assembly With Everything You Need to Install

    This kit ships with the 340LPH pump preinstalled, plus a new float arm, sending unit, tank seal, updated 40-amp bulkhead connector, and 4-way wiring connector. You also get ethanol-safe PTFE flex hose and Teflon-coated wiring throughout. No scavenging for extra parts, no shortcuts, just install and go.

    Reliable High-Flow Fuel Delivery for Boosted GM Trucks

    If you own a 1999 to 2003 Chevy Silverado 1500 or GMC Sierra 1500 and you are pushing power past stock, your fuel system is the bottleneck. The QFS-A80HV gives you the flow, pressure stability, and hardware needed to support serious horsepower without the headaches of the original canister design.

    Designed for E85 and Aggressive Builds

    Designed for E85 and Aggressive Builds

    This pump is 100 percent compatible with pump gasoline and E85 flex fuel, which matters if you run corn juice or plan to convert. Every component that touches fuel is engineered for ethanol resistance, so you are not replacing parts every season just to keep up with modern fuel blends.

    Direct Drop-In Fitment for a Straightforward Install

    Direct Drop-In Fitment for a Straightforward Install

    You might have torn apart enough fuel systems to appreciate a part that fits the first time. The QFS-A80HV drops into the factory location without modifications to the tank or the harness. The updated 40-amp bulkhead connector handles the extra amperage of the high-volume pump without any rewiring required.

    Built With QFS Quality and American Support

    Built With QFS Quality and American Support

    Quantum Fuel Systems is American-owned and based in Ventura, California, and every A80HV assembly ships with real US-based technical support behind it. If you have a fitment question or need a diagnostic walkthrough, our team picks up the phone. That is the kind of backing a serious build deserves.

    Frequently Asked Questions

    The QFS-A80HV delivers 340 liters per hour of fuel to your engine, replacing the weaker stock pump in your Silverado or Sierra. It supplies the extra volume required for forced induction, E85 conversions, and high-horsepower builds where the factory pump simply cannot keep up with the demand under load.

    Yes, this assembly is engineered as a direct drop-in for 1999 to 2003 Chevrolet Silverado 1500 and GMC Sierra 1500 pickups. You do not need to cut the tank, modify the factory harness, or fabricate custom brackets. Always confirm fitment with the year, make, and model lookup before you order.

    The A80HV ships as a complete assembly with the 340LPH pump already installed, a new float arm, sending unit, tank seal, upgraded 40-amp bulkhead connector, and 4-way wiring connector. PTFE corrugated flex hose and Teflon-coated wiring are included, so nothing extra is needed from your local parts counter.

    Boost, nitrous, and big horsepower all burn fuel faster. If your pump cannot keep the rail pressure steady, the engine leans out, and you risk detonation or worse. A 340LPH pump like the A80HV gives you the headroom to push power safely without chasing fuel pressure drops under hard load.

    Absolutely. The A80HV is built from the ground up for E85 and flex fuel use. Ethanol is brutal on fuel system components that were never designed for it, and our PTFE hose, teflon-coated wiring, and corrosion-resistant internals are chosen specifically to handle the punishment without breaking down over time.

    Free Shipping

    Buy Now, Pay Later

    Guaranteed Fit

    American Owned

    Lifetime Warranty

    U.S. Based support

    CUSTOMER SERVICE

    Our Team of Passionate Subject Matter Experts Are Here to Help