Moog RK643300 Suspension Control Arm - Rear Lower

Moog RK643300 Rear Lower Control Arm

Moog RK643300 is a premium suspension control arm built for rear lower applications on select Cadillac ATS and Cadillac CTS models. It is engineered for structural strength and corrosion protection, making it a direct-fit replacement for worn rear suspension components.

Key Features

• Premium-grade suspension control arm for rear lower placement
• Engineered for structural strength and corrosion resistance
• Suspension control arm and ball joint assembly meets OEM standards
• Fits 2013-2019 Cadillac ATS, rear lower
• Fits 2014-2019 Cadillac CTS, rear lower
• Part number RK643300 for accurate application matching

Detailed Description

Moog RK643300 is a rear lower suspension control arm for Cadillac ATS and Cadillac CTS applications. Built as a premium replacement part, it is intended to restore proper rear suspension geometry and support stable handling in vehicles that rely on precise control arm performance. This part cross-references Dorman OE Solutions 526-659 for the same application. For buyers searching for a rear lower control arm for 2013-2019 Cadillac ATS or 2014-2019 Cadillac CTS, RK643300 provides a fitment-specific option backed by Moog’s OE-focused engineering approach.

What It Helps Address

• Rear suspension looseness or instability
• Excessive play from a worn control arm and ball joint assembly
• Uneven tire wear related to rear suspension wear
• Noises from degraded rear lower suspension components
• Alignment issues tied to worn rear control arm hardware

Installation Notes and Tips

Verify rear lower fitment by year, make, and model before installation. This part is listed for 2013-2019 Cadillac ATS and 2014-2019 Cadillac CTS rear lower applications, and the OEM-standard assembly note should be matched to the vehicle’s suspension configuration. After installation, a professional wheel alignment is recommended to confirm suspension geometry.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection. RK643300 is built as a premium suspension component for foreign and domestic nameplates, with OEM-standard fitment guidance for the listed Cadillac applications.