FCS 342944 Shock Absorber - Rear

Rear Shock Absorber for Toyota and Lexus

FCS 342944 is a rear suspension shock absorber built for select Toyota Highlander, Toyota Sienna, and Lexus RX applications. With a compressed length of 12.32 inches, an extended length of 18.98 inches, and a 6.66-inch stroke, it matches the travel range needed for rear suspension control on covered vehicles.

Compatible With rear suspension service on 2010-2025 Toyota and Lexus platforms, this FCS shock absorber is a direct-fit replacement for the rear position on listed applications. The FCS brand line focuses on suspension replacement parts, and part number 342944 is specified for rear use across multiple Highlander, Sienna, and RX variants.

• Compressed length: 12.32 in.
• Extended length: 18.98 in.
• Stroke length: 6.66 in.
• Rear position fitment for select Toyota Highlander, Toyota Sienna, and Lexus RX models
• Application-specific coverage for vehicles with and without air suspension, depending on listing notes
• Part number: 342944

Detailed Fitment and Application

Fits 2014-2025 Toyota Highlander, rear. Fits 2021-2025 Toyota Sienna, rear. Fits 2022 Lexus RX350, rear, exclude air suspension. Fits 2018-2022 Lexus RX350L, rear. Fits 2022 Lexus RX450h, rear, exclude air suspension. Fits 2015 Lexus RX450h, rear, exclude air suspension. Fits 2018-2022 Lexus RX450hL, rear. Fits 2010-2021 Lexus RX350, rear, exclude air suspension. Fits 2016-2021 Lexus RX450h, rear, exclude air suspension. Fits 2010-2014 Lexus RX450h, rear, exclude air suspension.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Shock Absorber Helps Address

• Rear-end bouncing after bumps or dips
• Excessive body motion over uneven pavement
• Reduced rear suspension control during cornering
• Uneven ride quality from worn shock damping
• Noise or instability associated with tired rear shocks

Installation Notes and Tips

Verify rear fitment by year, model, and suspension type before installation. Air suspension-equipped Lexus RX applications are excluded where noted, so confirm the vehicle build matches the listing. Compare the original shock’s compressed length, extended length, and stroke to the replacement part before final installation.

Quality Assurance

FCS 342944 is cataloged as a suspension shock absorber for direct application matching on listed Toyota and Lexus rear suspension setups. Use the vehicle notes to confirm the correct rear configuration before ordering.