Mevotech CMS861351 Lateral Arm - Rear Left Upper Rearward

Rear Left Upper Rearward Lateral Arm for Lexus

Restore rear suspension geometry with the Mevotech Supreme Parts lateral arm, part number CMS861351. This aluminum rear left upper rearward arm is built for Lexus applications that see daily driving, fleet use, or higher mileage service, including Lexus IS300, IS350, RC300, RC350, GS350, and related models.

Key Features

• Mevotech Supreme Parts engineered in-house for application-specific durability upgrades
• Aluminum arm construction with a silver finish
• Rubber bushings included at both ends
• Non-adjustable design for direct replacement service
• Ball joint not included
• Labor Saver design focus for faster, easier installation

Detailed Description

The CMS861351 lateral arm is a rear left upper rearward suspension component designed for precise fitment on select Lexus rear suspension layouts. Mevotech Supreme Parts are developed with vehicle-specific improvements to handle demanding passenger and commercial use, making this arm a practical replacement for worn OE-style suspension hardware. The aluminum construction helps keep the part lightweight while maintaining the strength needed for rear suspension control. Part number CMS861351 is also referenced for the same application under cross-reference numbers such as 1CB86578 and CA64547.

Compatible With 2016-2022 Lexus IS300, rear left upper rearward; 2014-2022 Lexus IS350, rear left upper rearward; 2016-2022 Lexus RC300, rear left upper rearward; 2015-2022 Lexus RC350, rear left upper rearward; 2013-2020 Lexus GS350, rear left upper rearward; and additional Lexus rear suspension applications listed below. The part number CMS861351 appears across multiple Lexus rear suspension service listings, making it a useful match when replacing a worn lateral arm on the rear left upper rearward position.

What It Helps Address

• Rear suspension looseness or clunking from worn bushings
• Uneven rear tire wear caused by suspension geometry changes
• Excess rear wheel movement under braking or cornering
• Noise and vibration from deteriorated control arm bushings
• Loss of rear alignment stability after component wear

Installation Notes and Tips

Install this arm in the rear left upper rearward position only. Because it uses bushings at both ends and does not include a ball joint, confirm the existing suspension layout before ordering. For best results, inspect adjacent rear suspension components and perform a wheel alignment after installation. Verify fitment against the vehicle’s exact year, model, and rear suspension position before service. CMS861351 is a direct replacement-style part for the listed Lexus applications.

Quality Assurance

Mevotech Supreme Parts are engineered in-house with application-specific upgrades aimed at improving durability and service performance in demanding use. The brand’s Labor Saver design approach is focused on reducing installation time and simplifying service procedures.

• Fits 2016-2022 Lexus IS300, rear left upper rearward
• Fits 2014-2022 Lexus IS350, rear left upper rearward
• Fits 2016-2022 Lexus RC300, rear left upper rearward
• Fits 2015-2022 Lexus RC350, rear left upper rearward
• Fits 2013-2020 Lexus GS350, rear left upper rearward
• Fits 2018-2019 Lexus GS300, rear left upper rearward
• Fits 2013-2018 Lexus GS450h, rear left upper rearward
• Fits 2016-2017 Lexus GS200t, rear left upper rearward
• Fits 2016-2017 Lexus IS200t, rear left upper rearward
• Fits 2016-2017 Lexus RC200t, rear left upper rearward
• Fits 2014-2015 Lexus IS250, rear left upper rearward