Delphi TC360 Suspension Ball Joint - Front Lower Inner

OE-Style Front Lower Inner Ball Joint

Delphi TC360 is a standard replacement suspension ball joint for the front lower inner position. It is built with a steel body, threaded stud, dust boot, and included mounting hardware to support a direct-service replacement on select BMW applications, including BMW 325i, 318i, 318is, 325is, M3, and 325e models.

Key Features

• Part number: TC360
• Front lower inner suspension ball joint
• Steel construction with gray finish
• Pressed mounting type with threaded, tapered stud
• Dust boot included; grease fitting not included
• Standard replacement grade
• Mounting hardware and nuts included
• Compatible with select BMW 3 Series and M3 applications

Detailed Product Overview

Delphi applies OE-focused dimensional and material analysis to its aftermarket steering and suspension portfolio, and TC360 reflects that approach. The ball joint is engineered with a 12.0 mm stud thread diameter, 1.5 thread pitch, and a tapered stud profile for the front lower inner suspension location. The dust boot uses chloroprene rubber (CR) to help protect the joint from road contamination, while the pressed-in design supports service on vehicles that use a factory-style press fit. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. For BMW owners searching for a front lower inner ball joint for BMW 325i, BMW 318i, or BMW M3, Delphi TC360 provides a direct-fit replacement option built around OE-style specifications.

Vehicle Fitment

• Fits 1987-1993 BMW 325i, front lower inner
• Fits 1991 BMW 318i, front lower inner
• Fits 1984-1985 BMW 318i, front lower inner
• Fits 1991 BMW 318is, front lower inner
• Fits 1988-1991 BMW 325is, front lower inner
• Fits 1988-1991 BMW M3, front lower inner
• Fits 1984-1987 BMW 325e, front lower inner

Common Repair Uses

• Front suspension looseness or play at the lower inner joint
• Clunking or knocking from the front suspension over bumps
• Uneven tire wear related to worn ball joint movement
• Steering instability caused by excess joint wear
• Restoring factory-style suspension articulation on BMW E30 chassis applications

Installation Notes and Tips

TC360 uses a pressed mounting design, so proper removal and installation tools are recommended for service. Inspect the control arm, surrounding bushings, and fasteners before installation, and verify the tapered stud and thread specifications match the original part. After installation, a professional alignment is recommended to confirm suspension geometry and steering response.

Quality Assurance

Delphi tests its OE-style steering and suspension parts across extreme temperature and corrosion conditions, including sub-zero cold, high heat, and extended salt-spray exposure. That validation process is intended to support consistent fit and durability in demanding road conditions.