Suspensia X30BJ0373 Suspension Ball Joint - Front Upper

Suspensia Suspension Ball Joint for Lexus GS and IS Models

The Suspensia X30BJ0373 suspension ball joint is engineered for reliable performance in Lexus GS300, GS350, IS250, IS300, and IS350 vehicles. Designed with durable materials and essential hardware, this pre-greased ball joint ensures smooth steering and suspension operation.

• Pre-greased for immediate installation and reduced maintenance
• Includes castle nut, cotter pin, locking nut, and mounting hardware
• Durable steel housing with a black rubber dust boot for protection
• Threaded ball joint stud (M12 x 1.25) with a 19mm wrench size
• Press-on attachment method for secure fitment
• Plastic bearing material designed for regular grade use

Durable Construction and Key Features

This Suspensia suspension ball joint (part number X30BJ0373) features a steel housing that provides strength and resistance to wear. The black rubber dust boot protects the joint from dirt and debris, extending its service life. The ball joint stud is threaded with an M12 x 1.25 thread size, compatible with the included castle nut, cotter pin, and locking nut to ensure a secure and safe connection. The unit comes pre-greased, eliminating the need for immediate lubrication, although it is not greaseable after installation. The press-on attachment method simplifies installation while maintaining a firm fit.

Compatible Lexus Models and Applications

This suspension ball joint is compatible with several Lexus models, including the GS300, GS350, IS250, IS300, and IS350. It is designed to replace worn or damaged ball joints in these vehicles, restoring proper suspension geometry and steering response.

• Restores smooth steering and suspension articulation
• Eliminates clunking or knocking noises from worn ball joints
• Improves vehicle handling and stability
• Prevents uneven tire wear caused by suspension play
• Maintains proper alignment and suspension geometry

Installation Notes and Tips

Installation requires a 19mm wrench for the ball joint stud nuts. The press-on attachment method means the ball joint should be pressed into the control arm or mounting point using appropriate tools. Ensure the dust boot remains intact during installation to prevent contamination. Use the included castle nut, cotter pin, and locking nut to secure the ball joint properly. Since the ball joint is pre-greased and not greaseable, no additional lubrication is necessary after installation.

Quality Assurance and Warranty

Suspensia suspension components are manufactured to meet regular grade standards with quality steel and rubber materials. This ball joint is designed for durability and consistent performance under normal driving conditions. While specific warranty details are not provided, Suspensia products typically adhere to industry standards for fitment and material quality.