Front Upper Ball Joint for 2006-2009 Ford Fusion & More - Delphi TC3717

Tighten up your steering and keep the front suspension pivoting smoothly with the Delphi Suspension Ball Joint TC3717, a front upper ball joint that connects the control arm to the steering knuckle and lets the wheel move through travel and steering angles. It fits many vehicles and drops in as a direct-fit replacement for the 2006-2009 Ford Fusion, 2006-2009 Mercury Milan, and 2007-2008 Lincoln MKZ — see the "Vehicles it fits" section for the full list and engine-level details.

• Forged strength: manufactured with high-quality forgings for increased strength and smooth operation.
• Chloroprene rubber boot: improves durability and helps prevent premature failure by keeping contaminants out.
• Micron-tolerance machining: machined to micron tolerances for durability and smooth joint operation.
• Anti-corrosion protection: applied to each part for corrosion prevention and enhanced appearance.

Built on Delphi's OE safety technology, these parts are tested to the extreme — withstanding temperatures below -40°C and over 120°C and enduring 720 hours of salt spray. If a worn ball joint is behind clunking over bumps, wandering steering, or uneven tire wear, this unit replaces it. It is sold individually, and replacing both sides together is recommended for balanced handling.

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