Delphi TC2317 Suspension Ball Joint - Front Left Lower

Delphi TC2317 Front Left Lower Ball Joint

Delphi TC2317 is a suspension ball joint built for OE-style fit and performance on select Lexus applications. It is a bolt-on front left lower ball joint for the Lexus GS300, GS400, GS430, and SC430, with materials and sealing details chosen for demanding road conditions.

Key Features

• Steel ball joint assembly with a standard suspension grade design
• Fits the front left lower position on select Lexus GS300, GS400, GS430, and SC430 models
• Threaded stud with tapered end for secure suspension engagement
• Dust boot included with chloroprene rubber construction
• Grease fitting, castle nut, cotter pin, nuts, and mounting hardware included
• Bolt-on mounting type with 3 mounting holes
• OE-focused dimensional and material analysis for proper part matching
• Tested for temperature extremes and salt spray exposure

Detailed Description

Delphi TC2317 is engineered as a front left lower suspension ball joint for 1998-2005 Lexus GS300, 1998-2000 Lexus GS400, 2001-2005 Lexus GS430, and 2002-2010 Lexus SC430. This part number, TC2317, is built with a steel body, gray finish, and a threaded tapered stud to support precise suspension articulation and steering response. Delphi applies OE-level dimensional and material analysis to help ensure proper fitment on the intended Lexus chassis.

The design includes a dust boot, grease fitting, cotter pin hole, and mounting hardware, along with a bolt-on mounting layout and three mounting holes. Delphi also subjects its steering and suspension components to extreme temperature testing and extended salt spray exposure to evaluate durability in harsh environments. This part cross-references MOOG Chassis Products K500102 for the same application.

What This Ball Joint Helps Address

• Front-end looseness or play at the lower control arm connection
• Clunking or knocking noises from the front suspension
• Uneven steering feel caused by worn ball joint articulation
• Suspension geometry issues from a deteriorated joint
• Wear-related inspection failures on Lexus GS300, GS400, GS430, or SC430 front suspension

Installation Notes and Tips

Fits 1998-2005 Lexus GS300, front left lower; 1998-2000 Lexus GS400, front left lower; 2001-2005 Lexus GS430, front left lower; and 2002-2010 Lexus SC430, front left lower. Verify the mounting style, stud taper, and position before installation, and confirm the replacement matches the original suspension layout on the vehicle. Because this is a bolt-on component, clean the mounting surfaces and inspect adjacent suspension parts for wear before reassembly.

Quality Assurance

Delphi builds this ball joint using OE-focused engineering practices and validates it through temperature and corrosion testing. The part is backed by Delphi’s aftermarket steering and suspension expertise developed from OE safety technology used on vehicles worldwide.