Mevotech GS86177 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

OE-Style Front Left Upper Control Arm

Mevotech GS86177 is a premium suspension control arm and ball joint assembly for the front left upper position on select Lexus IS300 models. Built as an exact-match replacement for OE fit, form, and function, it helps restore original handling response and ride quality on daily-driven vehicles.

Compatible with 2001-2005 Lexus IS300, front left upper, this assembly is built for straightforward replacement service and consistent suspension geometry.

Key Features

• Exact-match OE replacement for the original control arm assembly
• Pre-greased ball joint for service-ready installation
• Steel control arm construction with black finish
• Rubber bushings and rubber dust boot for suspension isolation
• Press-in ball joint with threaded stud design
• Castle nut, cotter pin, and mounting hardware included where required
• Non-adjustable design for direct replacement use

Detailed Description

Mevotech Original Grade GS86177 is engineered to match the original manufacturer’s fit, form, and function for the front left upper suspension position. It uses a steel arm, rubber bushings, and a rubber dust boot to support OE-style ride characteristics, while the pre-greased ball joint helps reduce prep time during service. For owners searching for a Lexus IS300 front left upper control arm and ball joint assembly, GS86177 provides a direct replacement path that supports restored steering feel and suspension alignment behavior.

This part cross-references Delphi TC7639 for the same application.

What It Helps Address

• Clunking or looseness from a worn upper control arm assembly
• Uneven tire wear caused by suspension wear or play
• Imprecise steering response at the front suspension
• Ride quality loss from deteriorated bushings or ball joint components
• Restoring OE suspension geometry on a Lexus IS300

Installation Notes and Tips

Verify the front left upper position and confirm vehicle fitment before installation. Because this assembly uses a press-in ball joint and threaded stud, proper suspension service tools and torque procedures are important. After replacement, a professional wheel alignment is recommended to confirm correct suspension settings.

Quality Assurance

Mevotech Original Grade parts are built as OE-matched replacements for regular commuters and routine drivers, with hardware included where required to help streamline installation. GS86177 is designed to restore OE performance, handling, and ride on the specified Lexus IS300 applications.