Delphi TC4221 Suspension Ball Joint - Front Upper

Delphi Front Upper Ball Joint for Jeep and Dodge

Delphi TC4221 is a standard replacement suspension ball joint for front upper applications on select Jeep and Dodge vehicles. It is built with OE-focused dimensional and material analysis to support proper fitment, smooth steering response, and dependable suspension articulation.

Compatible with front upper positions on Jeep Wrangler, Wrangler JK, TJ, Cherokee, Grand Cherokee, Comanche, Wagoneer, Grand Wagoneer, and Dodge Ram 1500 and Ram 2500 applications listed below.

Key Features

• Part number TC4221
• Front upper suspension ball joint
• Press-in mounting type
• Pre-greased and greaseable design
• Grease fitting included
• Dust boot included with rubber boot material
• Castle nut, cotter pin, cotter pin hole, and mounting hardware included
• Counterclockwise (left) thread direction
• Standard replacement grade
• Ball joint assembly included
• Tapered stud with threaded stud type

Detailed Description

Delphi TC4221 is engineered for front upper suspension service where precise joint movement and secure steering geometry matter. It features a press-in design, plastic bearing type, and a tapered stud with a threaded end for proper suspension connection. The joint is pre-greased and also greaseable, giving technicians a serviceable replacement option for Jeep Wrangler JK, Jeep Wrangler, Jeep TJ, Jeep Cherokee, Jeep Grand Cherokee, Jeep Comanche, Jeep Wagoneer, Jeep Grand Wagoneer, Dodge Ram 1500, and Dodge Ram 2500 front upper applications. Delphi applies OE-level dimensional and material analysis to help ensure the replacement part matches the original fit and function expected in these vehicles. This part cross-references MOOG Chassis Products K3134T for the same application.

What This Ball Joint Helps Address

• Excessive play in the front upper suspension joint
• Clunking or looseness from worn steering and suspension components
• Uneven tire wear caused by suspension joint wear
• Imprecise steering feel in front suspension service
• Restoration of proper front upper joint articulation

Installation Notes and Tips

Verify the vehicle’s front upper position before ordering, since this part is specific to the listed applications. The press-in mounting style requires proper suspension service tools and correct installation procedures. Confirm the left-hand thread direction, use the included cotter pin and castle nut as specified, and inspect the surrounding control arm and steering components for wear during replacement.

Quality Assurance

Delphi subjects its OE-style steering and suspension parts to temperature extremes below -40 degrees C and above 120 degrees C, along with extended salt-spray exposure testing. TC4221 is built to meet the dimensional and material expectations needed for consistent aftermarket replacement performance.

• Fits 2018 Jeep Wrangler JK, Front Upper
• Fits 1997-2017 Jeep Wrangler, Front Upper
• Fits 1987-1995 Jeep Wrangler, Front Upper
• Fits 1997-2006 Jeep TJ, Front Upper
• Fits 1993-2004 Jeep Grand Cherokee, Front Upper
• Fits 1994-2001 Dodge Ram 1500, Front Upper
• Fits 1984-2001 Jeep Cherokee, Front Upper
• Fits 1994-1999 Dodge Ram 2500, Front Upper
• Fits 1993 Jeep Grand Wagoneer, Front Upper
• Fits 1986-1992 Jeep Comanche, Front Upper
• Fits 1984-1990 Jeep Wagoneer, Front Upper