AED Needle & Seat Assembly for Holley/Quick Fuel Carburetors 0.110" Orifice, Viton Pair

This AED 5110 Needle & Seat assembly is a precision replacement set designed to restore proper fuel metering in carburetors that accept a 0.110" orifice. Each kit contains two valve assemblies with adjustable needles and durable Viton seals to resist fuel, heat, and age-related deterioration. The parts are compatible with many Holley and Quick Fuel carburetor models and are packaged as a single-pair unit for convenience.

How does this needle and seat restore carburetor performance?

Worn or leaking needles and seats can cause fuel level instability, rich running, or poor throttle response. Installing the AED 5110 assembly re-establishes a reliable shutoff and metering point within the float bowl, helping the carburetor maintain the correct fuel level under varying engine loads.

• Adjustable needle tip for fine tuning fuel shutoff.
• 0.110" orifice dimensions match specified carburetor ports.
• Viton seals resist ethanol, heat, and long-term swelling.
• Sold as a pair to service both sides on dual-carb setups.

What are the key specifications and fitment details?

The AED 5110 is built to OEM-compatible dimensions with a 0.110" metering orifice and comes with Viton elastomers for durability. It fits many Holley and Quick Fuel carburetors that accept replaceable adjustable needles and seats; always compare part shapes and measurements before installation.

• Orifice size: 0.110" (specified for matched carburetor ports).
• Seal material: Viton for fuel resistance and longevity.
• Package quantity: 1 pair (two assemblies included).
• Package dimensions and weight: approximately 9.65 cm × 10.67 cm × 9.14 cm, 0.5 lbs.

How difficult is installation and what tools are required?

Installation is straightforward for anyone familiar with carburetor service and float bowl disassembly. You will need basic hand tools, a clean workspace, and patience to ensure no debris enters the fuel passages during replacement. If you are unsure, consult the carburetor manufacturer's manual or a qualified technician.

• Recommended tools: small screwdrivers, socket set, fuel-safe pliers.
• Work on a clean bench to avoid contaminating ports.
• Inspect float height and alignment after assembly.
• Test for leaks before final reinstallation on the vehicle.

What maintenance benefits does Viton provide compared to other seals?

Viton provides superior resistance to modern fuels, including ethanol blends, and stands up better to heat and oil exposure than many standard rubber compounds. That means fewer fuel leaks, more consistent metering, and longer intervals between rebuilds in performance or street applications.

• Enhanced chemical resistance for ethanol-containing fuels.
• Improved temperature tolerance during extended use.
• Reduced swelling and stickiness that can cause irregular metering.
• Longer service life than many conventional elastomers.

Who this is for: The AED 5110 adjustable Needle & Seat pair is aimed at automotive enthusiasts, professional tuners, and mechanics who maintain Holley or Quick Fuel carburetors and need a dependable, serviceable solution to restore correct float bowl fuel levels. It suits racers and street-driven vehicles alike where consistent metering and fuel resistance are important. If you require a different orifice size or non-adjustable style, verify compatibility before ordering.