FUSCH Fuel Return Line Connector for Ford 6.7L Powerstroke 2017-2020 — Anodized Aluminum, Leak-Resistant Replacement

FUSCH's upgraded aluminum alloy fuel filter return line connector is a durable replacement for Ford 6.7L Powerstroke diesels (2017–2020), engineered to stop leaks and resist corrosion while matching part # HC3Z-9A564-A.

If your Powerstroke is showing signs of a compromised fuel return connection—fuel smell, seepage, or loose fittings—this replacement connector offers a robust metal option over common plastic fittings. Built from anodized aluminum with a reinforced clamp and internal sealing, the assembly is intended to restore a tight, long-lasting return line joint on compatible Ford trucks.

How does this connector improve durability compared with plastic originals?

The FUSCH connector uses an upgraded aluminum alloy body rather than molded plastic, which increases hardness and reduces the chance of cracking at the mating surface. An anodized finish adds an extra layer of corrosion protection suited for under-hood exposure.

• Aluminum alloy construction resists impact and deformation.
• Anodized surface reduces oxidation and prolongs service life.
• Reinforced connection points are less likely to break during installation.

Will this part fit my Ford 6.7L Powerstroke from 2017–2020?

Yes, this connector is designed to replace part number HC3Z-9A564-A and fits Ford 6.7L Powerstroke diesel models from 2017 through 2020. Verify your vehicle’s year and engine type before ordering to ensure compatibility.

• Direct replacement for HC3Z-9A564-A-style return fittings.
• Confirmed fitment for 2017, 2018, 2019, and 2020 6.7L Powerstroke engines.
• Check OEM part number or vehicle VIN when in doubt.

How does the product prevent fuel leaks at the return connection?

This connector uses a dual-layer NBR sealing design inside the joint to boost sealing performance and reduce the risk of fuel escape. The included manganese-steel clamp and fixed clip secure the line, maintaining compressive force under vibration and temperature changes.

• Double-layer NBR seals provide improved resilience and leak resistance.
• Manganese-steel clamp resists loosening from engine vibration.
• Fixed clip adds mechanical retention for long-term reliability.

What comes in the package and what should I expect during installation?

The kit ships with the aluminum connector, a corrosion-treated manganese steel clamp, and a fixed clip; a fuel filter is not included. Installation is straightforward for a mechanically-inclined owner or technician: remove the old fitting, seat the new connector, compress the clamp, and lock the clip in place.

• Package: 1x connector, 1x manganese-steel clamp, 1x fixed clip.
• No fuel filter included—retain or replace your existing filter separately.
• Typical install uses common hand tools and takes minimal time for experienced installers.

Who is this for: This replacement is aimed at Ford owners and diesel technicians who need a stronger, longer-lasting fuel return connection than factory plastic fittings provide. It’s suitable for routine repairs, preventative upgrades, or restoring a leaking return line on 2017–2020 6.7L Powerstroke trucks. If you require a durable metal repair that matches the HC3Z-9A564-A fitment and keeps fuel where it belongs, this FUSCH connector is built for that purpose.