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SKU: 9905 1038
Koni EVO FSD Rear Shock Absorber for Freightliner M2 and S2RV Super-C Motorhomes
The Koni EVO FSD Rear Shock Absorber, designed exclusively for Freightliner M2 and S2RV Super-C RVs. This heavy-duty shock stands out among options by delivering precise damping that adapts to road conditions, ensuring a smoother ride and firmer handling than typical replacements. Built with a 9-ton tensile strength steel body, it handles the demands of RV travel from highway cruising to navigating uneven terrain—while maintaining tire contact and reducing sway for confident control.
Precise Vehicle Fitment
This shock fits the drive axle rear position on the following models:
- Freightliner M2 Super-C: 2014 to current year
- Freightliner S2RV Super-C: 2018 to current year
Confirm compatibility with your specific chassis setup for optimal installation.
Key Specifications
- Part Number: 9905-1038
- Position: Rear (sold individually pair recommended for balanced performance)
- Collapsed Length: 14.48 inches
- Extended Length: 22.80 inches
- Upper Mount: 3/4-inch eye, 3.82 inches wide
- Lower Mount: 3/4-inch eye, 3.18 inches wide with 3.21-inch offset sleeve
- Piston Bore: 50 mm modular design with digressive valve stack for controlled rebound
- Technology: EVO FSD (Frequency Selective Damping) with patented open intake valves and hydraulic rebound stop for adaptive response
What's Included in Your Purchase
- One (1) Koni 9905-1038 EVO FSD Rear Shock Absorber
- Installation requires standard tools approximate time is 0.75 hours per pair
- Backed by Koni's limited lifetime warranty when installed by an authorized dealer
Packaging and Shipping Details
- Part Weight: 11 pounds
- Shipping Weight: 12 pounds per unit
- Box Dimensions: 32 x 8 x 8 inches
The 50 mm bore and larger oil capacity in the EVO FSD design provide consistent performance over long distances, minimizing bounce on rough surfaces and enhancing stability during turns or crosswinds. Drivers report noticeable improvements in ride comfort and reduced body roll, making long trips less fatiguing compared to stock or basic aftermarket shocks. Choose the Koni 9905-1038 for Freightliner M2 S2RV rear shock needs it's the direct fit that transforms handling without sacrificing daily drivability.
Order now to upgrade your RV's suspension today.
KONI
KONI builds ride control products engineered around a single-tube design that delivers consistent damping across varying road conditions. Whether you're tuning for daily comfort, towing stability, or spirited driving, KONI's adjustable shock absorbers let you dial in the exact feel your vehicle needs.Popular UpgradesKONI Sport (Yellow) shocks are a top choice for performance street use, offering external rebound adjustment for a firmer, more controlled ride. The KONI Special Active series uses a patented self-regulating valve that automatically adapts damping based on road input, making it ideal for stock-height vehicles seeking improved handling without sacrificing comfort.Are KONI shocks a direct bolt-on replacement?Yes. KONI designs their shock absorbers to match OEM mounting dimensions, so installation uses factory hardware on most applications. No cutting, drilling, or modification is required for standard fitments. Some sport or lowered applications may pair KONI shocks with m...
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Shop shocks and struts at Black Ops Auto Works for improved ride control, handling, stability, comfort, towing support, off-road performance, and suspension replacement. This collection includes shock absorbers, monotube shocks, gas shocks, hydraulic shocks, strut assemblies, front struts, rear shocks, coil-over shocks, reservoir shocks, steering dampers, suspension hardware, and vehicle-specific dampers for cars, trucks, SUVs, Jeeps, off-road builds, and performance vehicles. Use this Shocks and Struts collection to find the right suspension upgrade by vehicle, ride height, driving style, and product type. Replacement shocks and struts help restore ride quality, performance shocks improve control and stability, heavy-duty truck shocks support larger vehicles and lifted setups, and off-road shocks help improve durability and control on rough terrain. Shop Shocks and Struts by Brand Black Ops Auto Works carries shocks, struts, and suspension dampers from trusted brands including Bils...
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Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what the factory suspension provides. From lowering springs and coilover kits for sport handling to lift kits and leveling kits for truck and SUV off-road capability, quality suspension components transform how a vehicle rides and handles. Popular Suspension Upgrades Popular suspension upgrades include coilover kits for adjustable ride height and damping, sport lowering springs for improved handling and reduced body roll, performance shock absorbers and strut assemblies, sway bar and end link upgrade kits, subframe brace kits, and complete suspension packages for lifted trucks and off-road SUVs. Alignment kits including camber bolts and camber arms are also frequently ordered after ride height changes. What is the difference between coilovers and lowering springs? Coilovers are complete shock and spring assemblies with adjustable ride height set by threading the spring perch on the shock...
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