Dorman 526-203 Lateral Arm - Rear Left Upper

Dorman 526-203 Rear Left Upper Lateral Arm

Dorman 526-203 is a rear left upper lateral arm built as a standard replacement for select Hyundai and Kia applications. It is precision-engineered and tested to match the original equipment function on the vehicle, with aluminum construction, a powder-coated silver finish, and rubber bushings for suspension service.

Key Features

• Direct replacement lateral arm for rear left upper suspension service
• Fits 2017-2020 Kia Optima, rear left upper
• Fits 2016-2019 Hyundai Sonata, rear left upper
• Aluminum construction with cast and forged design elements
• Powder-coated finish for added surface protection
• Rubber bushings included; no ball joint, dust boot, or grease fittings
• Bolt-on attachment type for OE-style suspension repair
• Part number 526-203 for catalog and cross-reference use

Detailed Description

This Dorman lateral arm is designed for rear suspension repair where the original arm has worn bushings, bent geometry, or mounting wear. The bent shape, 314 mm length, and 14.2 mm mounting hole diameter support OE-style alignment and fitment on the rear left upper position. It cross-references MOOG Chassis Products RK643576 for the same application. For shoppers searching for a rear left upper lateral arm for Kia Optima or Hyundai Sonata, Dorman 526-203 provides a direct replacement option built around the original suspension layout.

What It Helps Fix

• Rear suspension looseness or clunking from worn bushings
• Uneven tire wear caused by suspension geometry issues
• Rear-end instability or wandering during driving
• Noise from a damaged or bent lateral arm
• Alignment problems after suspension wear or impact

Installation Notes and Tips

Install Dorman 526-203 on the rear left upper suspension position only. Verify vehicle year, make, model, and position before installation on 2017-2020 Kia Optima and 2016-2019 Hyundai Sonata applications. Because this arm uses a bolt-on attachment and includes bushings, inspect adjacent suspension components, fasteners, and alignment settings during repair. Professional alignment is recommended after replacement.

Quality Assurance

Dorman states this lateral arm is precision-engineered and rigorously tested to provide a reliable OE-style replacement for specific vehicles. The part number is 526-203.