KYB 3440040 Shock Absorber - Rear

KYB Excel-G Rear Shock for Explorer

The KYB Excel-G 3440040 is a rear suspension shock absorber for 2013-2019 Ford Explorer models. Built to restore original ride control and handling, it is a direct OE-style replacement for drivers who want factory-correct suspension response on a Ford Explorer utility.

Key Features

• KYB recommended OEM replacement shock
• Designed to restore the Ford Explorer’s original control, stability, stopping response, lane-change behavior, and handling
• Nitrogen gas-charged twin-tube design
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Dust cover included
• B-stop and R-stop included in the design

Product Line Details

KYB Excel-G is KYB’s OEA-grade aftermarket line, built on the same OE assembly lines used for original equipment production. The 3440040 follows the original design intent rather than changing ride character, making it a practical choice for restoring suspension performance on the Ford Explorer.

Detailed Description

KYB 3440040 is engineered as a rear shock absorber for 2013-2019 Ford Explorer utility models. It uses OE-quality components and vehicle-specific damping calibration to help return the suspension to the control level the vehicle was designed to deliver. This part cross-references Monroe Shocks & Struts 911330 for the same application. The compressed length is 16.72 inches, extended length is 24.43 inches, and stroke length is 7.71 inches. Upper mount type is S1 (12mm) and lower mount type is special.

What It Helps Address

• Excessive rear bounce after bumps
• Loose or unsettled handling in lane changes
• Reduced tire contact over uneven pavement
• Oil or gas leakage from a worn rear shock
• Suspension response that no longer matches factory behavior

Installation Notes

Fits 2013-2019 Ford Explorer, rear. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify mount style, dimensions, and rear suspension configuration before installation. For best results, inspect related wear items and replace shocks in matched axle pairs when service procedures call for it.

Quality Assurance

KYB is a major OE supplier, and Excel-G shocks are assembled using OE-quality components on KYB production lines. The design is calibrated to restore original suspension performance for the Ford Explorer rather than alter it.