Name: KONI 8805-1022 FSD Rear Shock for 1993-Current Freightliner XC Class A Motorhome
Brand: Koni
SKU: 8805-1022
Price: 225.00 USD
Availability: InStock
Rating: 5 (3 reviews)

KONI FSD Rear Shock for 1993-Current Freightliner XC Class A Motorhome (Part # 8805-1022)

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KONI FSD Rear Shock for 1993-Current Freightliner XC Class A Motorhome (Part # 8805-1022)

: 8805-1022

In Stock(12)

Based on 3 reviews.

$225.00

$229.50

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Sale ends 03/31/2026 at 11:59:59

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VIN Verification (Spartan Chassis Only)

VIN Verification (Freightliner Chassis Only)

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Heavy-Duty Rear Shock Upgrade – KONI FSD for Freightliner XC / Roadmaster RR4R / Alpine Peak

Upgrade the ride and stability of your diesel motorhome with the KONI 8805-1022 Frequency Selective Damping (FSD) Rear Shock, designed for Freightliner XC, Roadmaster RR4R, Spartan, and Alpine motorhome chassis. These premium KONI FSD shocks are engineered to improve ride comfort, reduce suspension bounce, and increase highway stability—especially important for diesel pusher Class A motorhomes.

KONI Frequency Selective Damping (FSD) technology automatically adjusts damping based on road conditions. The shock remains firm during heavy suspension movements such as braking, cornering, or large bumps while softening over expansion joints and rough pavement to provide a smoother ride.

A specialized internal valve system helps reduce harsh road vibrations before they reach the chassis, improving passenger comfort and reducing driver fatigue on long trips. The result is improved rear suspension control, reduced porpoising, and better overall ride quality.

If your motorhome experiences rear-end bounce, harsh ride quality, or unstable highway handling, upgrading to KONI FSD shocks is one of the most effective ways to improve ride comfort, suspension performance, and driver confidence.

Product Benefits:

Frequency Selective Damping automatically adapts to road conditions
Improves ride comfort without sacrificing suspension control
Reduces vibration from expansion joints and rough pavement
Improves rear suspension stability and chassis control
Compatible with multiple diesel motorhome chassis platforms
Premium KONI durability and long service life

Ideal For:

Freightliner XC diesel motorhome chassis upgrades
Roadmaster RR4R chassis suspension upgrades
Spartan and Alpine diesel pusher motorhomes
Reducing rear suspension bounce and porpoising
Improving highway stability and ride comfort
Long-distance RV travel and touring

Applications:

1993-Current Freightliner XC – Rear – I-Beam Front Axle with Air Bags
1993-Current Freightliner XC – Rear – Independent Front Suspension with Air Bags
1993-Current Freightliner XC – Tag Axle Applications
2002-2011 Monaco / Holiday Rambler / Safari / Beaver – Roadmaster RR4R 4 Air Bag Chassis (Ride Height 16"-16.5")
1997-2001 Spartan Alpine and Summit
1998-2006 Alpine Coach Peak Chassis
2011-2012 Monaco Vesta
2011-2012 Holiday Rambler Trip

The KONI 8805-1022 FSD rear shock is designed for a wide range of diesel pusher motorhome chassis including Freightliner XC, Roadmaster RR4R, Spartan, and Alpine platforms. These chassis benefit from improved shock control to reduce suspension bounce and maintain proper ride height stability. This premium KONI shock delivers improved ride comfort, suspension performance, and long-term durability compared to factory shock absorbers.

Specifications:

Collapsed Length	Extended Length	Upper Mount	Lower Mount
13.25"	20.12"	Eye 3/4"	Eye 3/4"

Special Notes:

Sold individually.
Two shocks typically required per axle.
Some motorhomes may require additional shocks depending on suspension design.
Verify chassis and mounting configuration before ordering.

Other Information:

Q: What is KONI Frequency Selective Damping (FSD)?
A: FSD technology automatically adjusts shock damping based on road frequency, providing firm suspension control during heavy inputs while softening over expansion joints and rough pavement.

Q: Will KONI shocks improve the ride of a Freightliner XC motorhome?
A: Yes. KONI FSD shocks significantly improve ride comfort and stability by reducing suspension bounce, porpoising, and harsh road vibration on diesel motorhome chassis.

The state of California requires that this warning be posted for people purchasing products that reside in California.

WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov

Shipping Notice

In-stock items shipping via ground or flat rate are shipped within 48 hours. Expedited orders are prioritized and ship within 24 hours. Orders placed over the weekend, after Friday’s shipping cutoff, or on designated holidays will be processed on the next business day, and may not ship for up to 48 hours. For more information, please see our shipping terms.

KONI FSD Rear Shock for 1993-Current Freightliner XC Class A Motorhome (Part # 8805-1022)