KYB 3430120 Suspension Shock Absorber - Rear

KYB Excel-G Rear Shock for Hyundai Elantra

The KYB Excel-G 3430120 is a rear suspension shock absorber for select 2021-2023 Hyundai Elantra models without 17-inch wheels. Built on KYB OE assembly lines, this Excel-G shock is calibrated to restore original ride control, stability, stopping response, lane-change responsiveness, and handling.

For drivers searching for a KYB 3430120 rear shock for Hyundai Elantra applications, this part is an OE-style replacement that keeps the vehicle’s suspension behavior close to factory design. It is a practical choice for restoring rear damping performance on the Hyundai Elantra.

Key Features

• Brand: KYB
• Product line: Excel-G
• Part number: 3430120
• Part type: Suspension shock absorber
• Nitrogen gas-charged, twin-tube design
• Rear position application
• Compressed length: 14.57 in.
• Extended length: 24.09 in.
• Stroke length: 9.52 in.
• Lower mount type: E2 (12x55)
• Upper mount type: S1 (10MM)

Excel-G Product Line Details

KYB Excel-G shocks and struts are built to restore original vehicle performance rather than change suspension feel. The line uses OE-quality components and is produced on the same KYB manufacturing lines that supply original equipment, which is why Excel-G is classified as Original Equipment for the Aftermarket (OEA). The 3430120 follows that OE-style approach for rear suspension service.

Detailed Description

Compatible with 2021-2023 Hyundai Elantra rear suspension service, the KYB 3430120 is engineered for vehicles without 17-inch wheels. Its twin-tube, nitrogen gas-charged construction helps maintain consistent damping characteristics, while the OE-calibrated design supports factory-like ride control and handling balance. This part cross-references Monroe Shocks & Struts (e.g., 55307AB710) for the same application.

What It Helps Address

• Excessive rear bounce after bumps
• Reduced stability during lane changes
• Loose or unsettled rear suspension feel
• Longer stopping response caused by worn damping
• Uneven ride control from aging shock absorber components

Installation Notes and Tips

Verify rear fitment by year, model, and wheel configuration before ordering. This KYB 3430120 is listed for the rear of 2021-2023 Hyundai Elantra models without 17-inch wheels. Compare compressed length, extended length, and mount types to the original shock before installation. Professional installation and a post-repair suspension inspection are recommended.

Quality Assurance

KYB is a major OE shock and strut supplier, and Excel-G parts are manufactured using OE-quality components on KYB production lines. The design focus is restoring original suspension performance for the specified Hyundai Elantra application.