KONI 9905-1038 EVO FSD Rear Shock Absorber for Freightliner M2/S2 RV

Upgrade the ride quality and handling of your Freightliner M2 or S2-based recreational vehicle with the KONI 9905-1038 EVO FSD Rear Shock Absorber. Designed for demanding motorhome applications, this rear shock absorber uses KONI Frequency Selective Damping (FSD) technology to help balance comfort and control across changing road conditions.

The EVO FSD design automatically responds to suspension movement and road input, providing softer damping over smaller bumps while delivering increased control during larger impacts, cornering, braking, and lane changes. This helps reduce excessive body movement and improves stability without creating an unnecessarily harsh ride. The result is a more controlled, comfortable driving experience for RV owners traveling on highways, uneven pavement, and winding roads.

Built for select Freightliner M2 and S2 RV chassis applications, the KONI 9905-1038 is engineered as a direct-fit rear replacement shock absorber when matched to the vehicle’s application requirements. Its durable construction is intended to withstand the weight, operating demands, and extended travel associated with heavy-duty recreational vehicles. Confirm chassis configuration and existing shock specifications before ordering to ensure proper fitment.

What's Included: One KONI 9905-1038 EVO FSD rear shock absorber. Installation hardware is included only if supplied by the manufacturer.

Fitment: Designed for select Freightliner M2 and S2 RV applications. Professional installation is recommended, and fitment should be verified using the vehicle chassis details and current suspension configuration.

Features:

• Frequency Selective Damping: Adjusts damping response according to road conditions to support both ride comfort and suspension control.
• Improved RV Stability: Helps reduce body roll, pitching, and excessive suspension movement during braking, cornering, and lane changes.
• Heavy-Duty Construction: Built for the weight and operating demands of Freightliner-based recreational vehicles.
• Application-Specific Replacement: Designed for select Freightliner M2 and S2 RV rear suspension applications.