Delphi TC4170 Suspension Ball Joint - Front Lower

Delphi TC4170 Front Lower Ball Joint

Delphi TC4170 is a front lower suspension ball joint built as a standard replacement for select Nissan 240SX applications. It is pre-greased, includes a dust boot, and comes with the castle nut, cotter pin, and mounting hardware needed for service work.

Compatible With 1989-1994 Nissan 240SX, front lower. This Delphi TC4170 ball joint is engineered with OE-focused dimensional and material analysis to support proper fit and consistent suspension operation.

Key Features

• Front lower suspension ball joint assembly
• Pre-greased design with no grease fitting
• Press-in mounting type for service replacement
• Rubber dust boot included
• Castle nut, cotter pin, cotter pin hole, and mounting hardware included
• Standard replacement grade with plastic bearing type
• Counterclockwise (left) thread direction
• Tapered stud with threaded stud type

Detailed Description

Delphi TC4170 is a suspension ball joint for the front lower position on 1989-1994 Nissan 240SX models. It is built as a standard replacement part with a press-in design, pre-greased construction, and a rubber dust boot to help protect the joint during normal road use. Delphi applies OE-based engineering practices to its aftermarket steering and suspension portfolio, including dimensional and material analysis for fit consistency. This part cross-references MOOG Chassis Products K9509 for the same application.

Common Repair Uses

• Restoring front suspension joint integrity on a Nissan 240SX
• Replacing a worn or loose lower ball joint
• Addressing front-end clunking or play during steering input
• Correcting uneven tire wear caused by suspension looseness
• Servicing a damaged dust boot or compromised joint seal

Installation Notes and Tips

Verify the front lower position and left-hand thread direction before installation. Because this is a press-in ball joint, proper suspension service tools are required for removal and installation. Confirm stud taper, cotter pin alignment, and castle nut seating during assembly, and inspect the surrounding control arm and hardware for wear before returning the vehicle to service.

Quality Assurance

Delphi subjects its OE-style steering and suspension parts to temperature and corrosion testing, including exposure below -40 degrees C, above 120 degrees C, and extended salt-spray testing. The TC4170 is backed by Delphi’s OE-focused manufacturing and validation process for aftermarket replacement use.