KYB 3440023 Shock Absorber - Rear

KYB Excel-G Rear Shock for Highlander

The KYB Excel-G 3440023 is a rear suspension shock absorber built to restore original ride control on select Toyota Highlander models. It is an OE-style replacement for drivers who want factory-like handling, braking stability, and lane-change response without changing the vehicle’s intended suspension behavior.

Fits 2022-2024 Toyota Highlander, rear. Fits 2020-2021 Toyota Highlander, rear. Fits 2014-2016 Toyota Highlander, rear.

Key Features

• Excel-G line calibrated to restore original suspension performance
• Nitrogen gas-charged, twin-tube shock absorber 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
• Includes dust cover, B-stop, and R-stop
• Lower mount type: E2 (12.2 x 50); upper mount type: E2 (14 x 39.7)

Product Details

KYB Excel-G shocks and struts are made on KYB OE assembly lines using OE-quality components and are calibrated to return the suspension to its original designed performance. For Toyota Highlander rear suspension service, part number 3440023 is a direct-fit OE-style choice that supports ride control, stability, stopping performance, and electronic safety system operation by helping the suspension work as the manufacturer intended. This part cross-references Monroe Shocks & Struts (e.g., 37361) for the same application.

What It Helps Address

• Excessive rear bounce or oscillation
• Reduced stability during braking or lane changes
• Loose or unsettled rear suspension feel
• Uneven tire contact caused by worn damping
• Noise or leakage from a worn rear shock absorber

Installation Notes

Fits 2022-2024 Toyota Highlander, rear; 2020-2021 Toyota Highlander, rear; and 2014-2016 Toyota Highlander, rear. For 2020-2021 and 2014-2016 Highlander applications, replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify mount style and dimensions before installation, and inspect related suspension components for wear.

Quality Assurance

KYB is a major OE supplier of shocks and struts, and the Excel-G line is classified as an Original Equipment for the Aftermarket replacement. Part number 3440023 is built to OE-quality standards for the Toyota Highlander rear suspension application.