Call: 800-417-4559
My Cart

Text Us At: 360-736-2158

Customer Service Available Monday-Friday 6am-4pm Pacific

Call: 800-417-4559

KONI FSD Front Shock for Beaver Coach with Magnum Chassis Class A Motorhome (Part # 8805-1004SP1)

KONI FSD Front Shock for Beaver Coach with Magnum Chassis Class A Motorhome (Part # 8805-1004SP1)
KONI FSD Front Shock for Beaver Coach with Magnum Chassis Class A Motorhome (Part # 8805-1004SP1)
: 8805-1004SP1
In Stock(8)
Based on 0 reviews.
$265.00
$304.75

Koni Special - Limited Time Only


Get an additional 2% off when added to your cart

Sale ends 03/31/2026 at 11:59:59
Add to Cart
This product has a minimum quantity of 2

Front Heavy-Duty Shock Upgrade – KONI FSD for Beaver Coach Magnum Chassis


Upgrade the front suspension performance of your motorhome with the KONI 8805-1004SP1 Frequency Selective Damping (FSD) Front Shock, designed for Beaver Coach motorhomes built on the Magnum air ride chassis. These premium KONI FSD shocks are engineered to improve ride comfort, stability, and suspension control—especially important for diesel pusher motorhomes equipped with Beaver Magnum 4, 8, or 10 air bag suspension systems.

KONI Frequency Selective Damping (FSD) technology automatically adapts to changing road conditions. The shock remains firm when greater control is needed—such as during cornering, steering corrections, or large suspension movements—while softening over expansion joints and rough pavement to deliver a smoother ride.

A specialized internal valve system helps filter harsh road vibrations before they reach the chassis, reducing driver fatigue while maintaining excellent suspension stability. The result is improved ride comfort, better steering control, and enhanced highway stability for your motorhome.

If your Beaver coach experiences harsh ride quality, front-end bounce, or poor steering stability, 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 steering stability and front suspension performance
  • Ideal for diesel pusher motorhomes with air ride suspension
  • Premium KONI durability and long service life

Ideal For:

  • Beaver Coach diesel pusher motorhomes
  • Magnum air ride suspension chassis
  • Motorhomes with 4, 8, or 10 air bag suspension systems
  • Long-distance RV travel and touring
  • Motorhomes seeking improved ride comfort and steering stability

Applications:

  • Beaver Magnum Air 10 Bag Chassis – Front
  • Beaver Magnum Air 8 Bag Chassis – Front
  • Beaver Magnum Air 4 Bag Chassis – Front


The KONI 8805-1004SP1 FSD front shock is designed for Beaver motorhomes built on the Magnum air ride chassis. These chassis are widely used in diesel pusher motorhomes where improved suspension control, ride comfort, and highway stability are essential. This shock helps reduce front suspension bounce, improve steering response, and provide a smoother ride compared to factory shock absorbers.

Specifications:

Collapsed Length Extended Length Upper Mount Lower Mount
15.12" 24.09" Eye 3/4" Eye 3/4"

Special Notes:

  • Sold individually.
  • Many Magnum air ride chassis use one shock per air bag, meaning you may need four shocks to complete the front suspension.
  • Some Beaver coaches use the non-SP1 version (KONI 8805-1004). Verify mounting hardware before ordering.
  • If the bottom bolt head is 1-1/8", this SP1 version is correct.
  • If the bottom bolt head is 3/4", you need KONI 8805-1004.
  • Bilstein cross reference numbers: B46-2092-M1 and AK1274.

Other Information:

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

Q: Why do some Beaver Magnum chassis require four front shocks?
A: Many Magnum air ride suspension systems use one shock absorber per air bag, meaning two shocks per side on the front axle.

Write a review

Please login or register to review

 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

Would like to confirm part number for front and rear shocks koni 8805-1004sp1 for front
8805-1005sp1 rear

1997 Beaver Monterey 3605

Also any other discount or sale code available for purchases? Thanks ( Steve Conroy, 09/08/2023 )
I do not have the means to VIN verify these to your chassis/coach. Does your coach have air bag suspension? How many total shocks does it have?
is helpfull to replace only two shocks on the front, would be using koni fsd due two cost ,it now has bilsten ( ned kennedy, 02/08/2022 )
We would recommend  that all 4 front shocks be the same. 
What koni shocks should I buy for my coach please help ( Jay lovdal, 06/01/2021 )
Are you able to get the part #'s off the shocks that are currently installed? Does it have 8 total shocks or 4?
Do you have these in stk

Koni 8805-1004SP1 ( Jeff, 05/09/2020 )
Yes, we currently have 8 on hand. 
I have a 2004 Beaver 42' Marquis that states there are 10 air bags and 10 shocks. It's the Magnum M10S chassis with the tag axle. Is there anyway to measure the eyelet size to see if it has the (3/4") diameter without removing the shock? Will the bottom and top eyelet have the same diameter? Thanks ( Burt Ross, 05/01/2020 )
Burt, based on your VIN you would use 4 of the 8805-1004SP1 for the front and 6 of the the 8805-1005SP1 for the rear.

Ask a question

Note: HTML is not translated!
Delivery Icon
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.

Related Products

KONI 8805-1005SP1 FSD Rear Shock for Beaver Coach Magnum Chassis Class A Motorhome

KONI 8805-1005SP1 FSD Rear Shock for Beaver Coach Magnum Chassis Class A Motorhome

$265.00

41-230 Blue Safe-T-Plus Steering Stabilizer Control Unit

41-230 Blue Safe-T-Plus Steering Stabilizer Control Unit

$525.00

We use cookies and other similar technologies to improve your browsing experience and the functionality of our site. Privacy Policy.
Merchant Reviews