KYB 3440115 Suspension Shock Absorber - Rear

KYB Excel-G Rear Shock Absorber

The KYB Excel-G rear shock absorber is built to restore original ride control, stability, stopping response, lane-change handling, and overall suspension performance. This nitrogen gas-charged, twin-tube design is made on KYB OE assembly lines with OE-quality components for a direct replacement approach.

Compatible with 2018-2022 Toyota C-HR rear, 2019-2022 Lexus UX200 rear, and 2019-2022 Lexus UX250h rear, this KYB Excel-G shock absorber is a practical OE-style choice for restoring factory-calibrated damping. Part number 3440115 is part of KYB’s Excel-G line, which focuses on returning the vehicle to its original designed performance rather than changing ride characteristics.

Key Features

• KYB Excel-G rear suspension shock absorber
• Nitrogen gas-charged, twin-tube construction
• OE-quality components built on KYB OE assembly lines
• Calibrated to restore original ride control and handling
• Internal rebound spring included
• Lower mount type: E2 (16.1x50)
• Upper mount type: S1 (12MM)
• Compressed length: 13.98 in; extended length: 18.96 in; stroke length: 4.98 in

Excel-G Product Line Details

KYB Excel-G is the brand’s OE replacement line for drivers and technicians who want factory-style damping characteristics. As an Original Equipment for the Aftermarket (OEA) product, it is engineered to match the vehicle’s original suspension behavior for predictable rear-end control on the Toyota C-HR and Lexus UX platform.

Detailed Description

Part number 3440115 is a rear shock absorber for select Toyota and Lexus compact crossover applications. It is designed for the rear suspension on the 2018-2022 Toyota C-HR, 2019-2022 Lexus UX200, and 2019-2022 Lexus UX250h. The Excel-G design uses a twin-tube, gas-charged layout and OE-quality construction to help restore the vehicle’s original damping response, which is important when ride quality, braking stability, and cornering control have changed over time.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Excessive rear bounce after bumps
• Reduced stability during braking or lane changes
• Uneven or loose rear suspension feel
• Loss of factory ride control from worn shocks
• Rear-end harshness caused by degraded damping

Installation Notes and Tips

Install as a rear shock absorber replacement on the listed vehicles only. Verify mount style, compressed length, and extended length before installation, and inspect related suspension components such as bushings, mounts, and springs for wear. For best results, replace shocks in pairs on the same axle to maintain balanced rear suspension performance.

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is produced using the same OE assembly-line standards and quality components used in KYB’s global OEM programs. Part number 3440115 is engineered as an OE-style replacement for restoring original suspension behavior on the specified Toyota and Lexus applications.