KYB 3440158 Suspension Shock Absorber - Rear

KYB Excel-G Rear Shock Absorber 3440158

KYB Excel-G part number 3440158 is a rear suspension shock absorber built to restore original ride control, stability, stopping response, lane-change responsiveness, and handling. It is a nitrogen gas-charged, twin-tube shock made on KYB OE assembly lines with OE-quality components.

Compatible with rear applications on select Kia Forte, Kia Niro, Hyundai Veloster, Hyundai Elantra, and Hyundai Elantra GT models, this KYB Excel-G shock absorber is an OE-style replacement for drivers and technicians looking to return the suspension to factory-calibrated performance. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Key Features

• Part number: 3440158
• Rear suspension shock absorber
• Nitrogen gas-charged, twin-tube design
• OE-quality components and OE-calibrated performance
• Lower mount type: E2 (12x55)
• Upper mount type: S1 (10MM)
• Compressed length: 14.33 in.
• Extended length: 22.68 in.
• Stroke length: 8.35 in.

Product Details

The KYB Excel-G line is focused on restoring the vehicle’s original suspension behavior rather than changing it. For rear shock replacement on a 2020-2024 Kia Forte, 2018-2022 Kia Niro, 2019-2021 Hyundai Veloster, 2017-2018 Hyundai Elantra, or 2018 Hyundai Elantra GT, KYB 3440158 provides the dimensions and mounting configuration needed for a direct-fit repair. The Excel-G platform is built on KYB’s OE manufacturing process and is classified as Original Equipment for the Aftermarket (OEA).

What It Helps Address

• Excessive rear bounce after bumps
• Loose or unsettled handling over rough roads
• Reduced braking stability from worn rear shocks
• Delayed lane-change response
• Uneven ride control caused by suspension wear

Installation Notes and Tips

• Verify rear fitment by year, make, model, and mount style before installation.
• Compare compressed length, extended length, and stroke length to the removed shock.
• Inspect related suspension components such as mounts, bushings, and tires during replacement.
• Replace shocks in pairs on the same axle for balanced rear suspension performance.

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is produced on the same KYB OE assembly lines using OE-quality components. Part number 3440158 is engineered to restore factory-designed ride control for the listed rear applications.