KYB 3440166 Suspension Shock Absorber - Rear

KYB Excel-G Rear Shock Absorber

The KYB Excel-G 3440166 is a rear suspension shock absorber built to restore original ride control, stability, and handling response. It is a direct-fit OE-style replacement for select 2022-2025 INFINITI QX60 and 2022-2025 Nissan Pathfinder applications.

KYB Excel-G shocks and struts are assembled on KYB OE production lines and calibrated to return the vehicle to its original designed performance. This nitrogen gas-charged, twin-tube design uses OE-quality components and is classified by KYB as an OEA replacement for the aftermarket.

Key Features

• Part number: 3440166
• Rear suspension shock absorber
• Nitrogen gas-charged, twin-tube construction
• Compressed length: 12.44 in.
• Extended length: 16.81 in.
• Stroke length: 4.37 in.
• Lower mount type: E2 (14.4x45)
• Upper mount type: S1 (12MM)
• OE-style calibration for original ride characteristics
• Made on KYB OE assembly lines with OE-quality components

Detailed Description

KYB 3440166 is engineered for drivers who want the vehicle to respond the way it did from the factory. On the 2022-2025 INFINITI QX60 rear suspension and 2022-2025 Nissan Pathfinder rear suspension, this Excel-G shock absorber helps maintain ride control during braking, lane changes, and everyday road inputs while preserving the original tuning of the chassis. The Excel-G line focuses on restoring factory performance rather than changing the vehicle’s ride character.

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 cornering
• Loose or unsettled rear suspension feel
• Uneven ride control over rough pavement
• Loss of original damping response

Installation Notes and Tips

Fits 2022-2025 INFINITI QX60, rear. Fits 2022-2025 Nissan Pathfinder, rear. Verify mount style, compressed length, extended length, and stroke length before installation to confirm proper suspension travel and fitment. Replace shocks in axle pairs when service procedures call for matched damping on both sides of the vehicle.

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is produced on the same manufacturing lines used for original equipment components. The 3440166 is built to OE-style specifications for consistent fit and restored factory-level damping behavior.