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  Store > Brands > King Racing Shocks >

King Shock Parts - Shock Rebuild Seal Kit
King Seal Kit images
 
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Sold Individually
Price: $37.50



Availability: Ships in 3-5 days

Part Number: KING-SEALKIT

Select Seal Kit Model



Sold Individually (One Seal Kit for One Shock).

I agree to no returns or exchanges. (Required)

Shipping Notice: Our website may over calculate shipping costs on larger/combined parts orders. If this happens, we will automatically reduce the shipping charges once the order is processed.

Unavailable Until 1/2/25  
Description
 

**Read all instructions carefully before ordering shock parts.**
**No returns or exchanges on seal kits.**

Sold Individually - Services One Shock


King Shock Seal Kits include all of o-rings and seals needed to service King shocks, coilovers, bypass shocks, air shocks, steering stabilizers, and bump stops. Seal kits are shock specific so make sure you order the correct seal kits by following the instructions below and then selecting the appropriate seal kit from the drop down menu above.


If you are not sure if your shocks are PR series or RS series, please email
us a photo of your shocks so we can identify them for you.


King PR Series Shocks are by far the most common type of King shock and all King OEM shocks are PR series shocks. PR series King shocks use Buna seal kits which are recommended for standard use as well as medium to aggressive race use. Seal kits include o-rings to service remote reservoir and piggyback shocks and up to three bypass tubes.

P/N Shock Type Body Shaft Reservoir Type
21000-900 King 2.0 PR Standard 2.0" 7/8" 2.0" Buna
21000-902 King 2.0 PR Standard 2.0" 3/4" 2.0" Buna
25000-900 King 2.5 PR Standard 2.56" 7/8" 2.5" Buna
25000-920 King 2.5 PR Standard 2.56" 3/4" 2.0" Buna
25000-903 King 2.5 PR Compact* 2.56" 3/4" 2.0" Buna
33000-900 King 3.0 PR Standard 3.0" 1" 2.5" Buna
33000-902 King 3.0 PR Standard 3.0" 7/8" 2.5" Buna

*Compact seal head shocks are not common and only used in some OEM shocks.
These are special order seal kits, contact us to order.


P/N Shock Type Body Shaft Reservoir Type
21000-901* King 2.0 PR Standard 2.0" 7/8" 2.0" Viton
25000-901* King 2.5 PR Standard 2.56" 7/8" 2.5" Viton
33000-901* King 3.0 PR Standard 3.0" 1" 2.5" Viton

*Viton seal kits for PR series shocks are only available via special order.


P/N Shock Type Body Shaft Type
20AB400-900 King 2.0 Air Shock 2.0" 1.25" Buna
20AB400-900 King 2.5 Air Shock 2.5" 1.625" Buna
20AB400-900 King 2.0 Bump Stop 2.0" 1.25" Buna
20AB400-901 King 2.0 Compact Bump Stop 2.0" 1.25" Buna
20AB400-900 King 2.5 Bump Stop 2.5" 1.625" Buna
KTC000-900 King 2.0 Compact Shock 2.0" 1/2" Buna




King RS Series Shocks are Kings race series shocks with all 3.5, 4.0, and 4.5 King shocks being RS series by default. RS series shocks use Viton seal kits which rated for professional race use and continuous use above 400 degrees (F). Seal kits include o-rings to service remote reservoir and piggyback shocks and up to five bypass tubes.


P/N Shock Type Body Shaft Reservoir Type
20000-901 King 2.0 RS 2.0" 7/8" 2.0" Viton
25500-901 King 2.5 RS 2.50" 7/8" 2.5" Viton
30000-901 King 3.0 RS 3.0" 1" 2.75" Viton
35000-901 King 3.5 RS 3.5" 1" 2.75" Viton
40000-901 King 4.0 RS 4.0" 1.25" 3.46" Viton
45000-901 King 4.5 RS 4.5" 1.25" 3.46" Viton



How To Rebuild King Shocks Video



(Open video in YouTube and view description for section links and details.)


Helpful Resources
King Shock Rebuild Manual
Shock Valving Guide
Shock Tuning Guide
Features
  • Direct Replacement King Parts

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 2 Write a review.

  1 of 1 people found the following review helpful:
 
5 of 5 Thank You May 26, 2020
Reviewer: Ryan from Ellinwood, KS  
Thanks for helping me get the correct parts for my shock rebuild, everything went together great.

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  1 of 1 people found the following review helpful:
 
5 of 5 King Rebuild Parts August 25, 2017
Reviewer: Anonymous Person from Bellevue, WA  
I'm very, very pleased with the service and support I received.  The one time in the past I'd changed the seals I ordered directly from King.  However, the service I received from Filthy Motorsports far exceeds the service I received from King.  (The parts delivered in less than a week from Filthy Motorsports versus 2 weeks from King, and the technical support was much better, too--great pdf of the rebuilding procedure on your website!)  Needless to say, especially when the pricing is identical, there isn't even a choice for the future for me--Filthy Motorsports will get my business!

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