8805-1003 - REAR Workhorse W-Series (Koni FSD)

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Please Note: If you have a 2004 please verify the top mount of the rear shock! If it is a eyelet then you need part # 8805-1003, if it has a vertical stud top mount then you need part # 8805-1002.

Koni 8805-1003

Description:

Koni Frequency Selective Damping (FSD) shock absorbers provide superior handling characteristics without compromising ride comfort. The FSD is firm where you need it, such as through corners, but rides soft over expansion joints and rough roads. A special valve filters out annoying vibrations before they enter the vehicle, resulting in a smooth ride over a variety of road surfaces.

Applications:

Workhorse W20 & W22 Rear (2001-2004)
Workhorse W18 GAS ONLY Rear (2006-2011)
Workhorse W16 GAS ONLY Rear (2006-2011)
Holiday Rambler Vacationer Diesel RSR Rear (2006+)
Monaco LaPalma Diesel RSR Rear (2006+)

Please Note: If you have a 2004 please verify the top mount of the rear shock, if it is a vertical stud then you need the 8805-1002 Koni for the rear. If it is a horizontal bolt then this is the proper rear Koni for your coach. If your build date of your chassis was 3/29/2004 or earlier (VIN -43392080 or lower) this would be the correct shock.

Collapsed Length	Extended Length	Upper Mount	Lower Mount
13.46"	21.69"	Eye 3/4"	Stem

I know this question is probably very subjective, but, approximately how many miles should these shocks last? I installed these on my 2003 Workhorse over 10 years ago, but relatively low miles, but the front end is beginning to porpoise again. Thanks- Ernie ( Ernie Brodie, 06/08/2021 )

The Koni shocks carry a lifetime warranty to the original purchaser, I would recommend contacting Koni directly to see about sending them in for testing. ( Support )

MY REAR SHOCKS HAVE A THREADED END AT THE BOTTOM (pointing at the pavement). Is this the correct rear shock (8805-1003)? If not, which koni shock fits the rear?I am going to order both front (8805-1001) and rear Koni shocks from you after I get the right part #. Thanks, nice quiz. ( Richard, 10/20/2016 )

Richard,

Yes, the 8805-1003 have an eyelet top mount and stud bottom mount.

( Support )

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