Filthy Motorsports Logo



International Shipping



Volusion Secure Site Seal



We accept Visa, Mastercard, Discover, and PayPal


ADA Accessibility
Statement

  Store > Brands > King Racing Shocks >

King Shock Parts - Shock Rebuild Kits
King Seal Kit images
 
Additional Images


Select options and click "update price w/ options" button.

Price: $35.00


Availability: In Stock
Product Code: KING-SEALKIT

Select Seal Kit Model



Additional Items










I agree to no returns or exchanges.


Qty:  
Description Compatibility Part Numbers
 

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



King Shocks Seal Kit King Shock Seal Kits include all of the genuine, direct replacement King Off-Road Racing Shocks seals and o-rings needed to rebuild your shocks, coilovers, bypasses, air shocks, and bump stops.

Buna Seal Kits are standard rated for moderate race use and are direct replacement components for PR series shocks.

Viton Seal Kits contain full race-spec seals and o-rings to withstand temperatures up to 450 degrees and greater pressures and forces. Viton seal kits are standard for RS series shocks. Also available for PR shocks via special order. Not recommended for cold temperature use.

Each seal kit includes all of the o-rings needed for remote reservoir, piggyback, and up to 3 bypass tubes.



2.0" OD shocks use 2.0 seal kits
2.5" & 2.56" OD shocks use 2.5 seal kits
3.0" OD shocks use 3.0 seal kits




P/N Item Description Shock Type

21000-900 King 2.0 PR Buna Seal Kit for 7/8" Shaft & 2.0" Reservoir PR 2.0
21000-902 King 2.0 PR Buna Seal Kit for 3/4" Shaft & 2.0" Reservoir PR 2.0
25000-900 King 2.5 PR Buna Seal Kit for 7/8" Shaft & 2.5" Reservoir PR 2.5
25000-920 King 2.5 PR Buna Seal Kit for 3/4" Shaft & 2.0" Reservoir PR 2.5
33000-900 King 3.0 PR Buna Seal Kit for 1" Shaft & 2.5" Reservoir PR 3.0
33000-902 King 3.0 PR Buna Seal Kit for 7/8" Shaft & 2.5" Reservoir PR 3.0

200000-901 King 2.0 RS Viton Seal Kit RS 2.0
25500-901 King 2.5 RS Viton Seal Kit RS 2.5
30000-901 King 3.0 RS Viton Seal Kit RS 3.0
35000-901 King 3.5 RS Viton Seal Kit RS 3.5
40000-901 King 4.0 RS Viton Seal Kit RS 4.0
45000-901 King 4.5 RS Viton Seal Kit RS 4.5

20AB400-900 King 2.0 AS / Bump Stop Seal Kit 2.0 AS/BS
25AB400-900 King 2.5 AS / Bump Stop Seal Kit 2.5 AS/BS
20AB400-901 King 2.0 Compact Bump Stop Seal Kit 2.0 BS (Compact)



To Add Schrader Valves, DU Bushings, and Wear Bands, See Below:
*Small parts are only available for purchase as part of this kit. Not sold individually.*



To order the correct Schrader Valves (Part #41) view the images above and match your existing schrader valve to one of the four types available. Older shocks used NPT valves while newer shocks use the o-ring style valves.

P/N Item Description Shock Type

CV2101 King Short NPT Schrader Valve PR 2.0/2.5/3.0
CV2102 King Long NPT Schrader Valve 2.0/2.5 AS/BS, RS 2.0-4.5

CV2105-101 King Short O-ring Schrader Valve PR 2.0/2.5/3.0
CV2106-101 King Long O-Ring Schrader Valve 2.0/2.5 AS/BS, RS 2.0-4.5

PR = Performance Series | RS = Pure Race Series | AS = Air Shock | BS = Bump Stop



To order the correct Shock Piston Wear Bands (Part #13) you will need to find your shock type in the table below to reference the correct part number for your application and then verify that the description matches your existing wear band.

P/N Item Description Shock Type

21019-003 King 2.0 PR Rulon Wear Band (0.31"W x 5.50"L) PR 2.0 SS/CO/AS
25012-005 King 2.5 PR Rulon Wear Band (0.49"W x 7.25"L) PR 2.5 SS/CO/AS

21019-002 King 2.0 PR DU Wear Band (0.31" x 1.75" OD) PR 2.0 BS/BP
25012-002 King 2.5 PR DU Wear Band (0.50"W x 2.25"OD) PR 2.5 BS/BP
20007-002 King 2.0 RS DU Wear Band (0.625"W x 1.74"OD) RS 2.0 SS/CO/BP
25520-001 King 2.5 RS DU Wear Band (0.626"W x 2.225"OD) RS 2.5 SS/CO/BP
30007-001 King 3.0 PR/RS DU Wear Band (0.627"W x 2.74"OD) PR/RS 3.0 SS/CO/BP

PR = Performance Series | RS = Pure Race Series | AS = Air Shock | BS = Bump Stop
SS = Smoothie | CO = Coilover | BP = Bypass



To order the correct Reservoir Piston (IFP) Wear Bands (Part #38) you will need to find your shock type in the table below to reference the correct part number for your application, measure the inner diameter of your reservoir, and make sure the description matches your existing wear band.

P/N Item Description Shock Type

21018-001 King 1.75" ID Reservoir Wear Band (0.256"W x 5.25"L) PR/RS 2.0
25012-003 King 2.25" ID Reservoir Wear Band (0.254"W x 6.75"L) PR 2.5, RS 2.0
30012-001 King 2.50" ID Reservoir Wear Band (0.382"W x 8.0"L) PR 3.0, RS 2.5-3.0

PR = Performance Series | RS = Pure Race Series | AS = Air Shock | BS = Bump Stop



To order the correct DU Bushings (Part #18) you will need to measure the inner diameter and overall length of your existing bushings and find them in the table below. Some DU bushings have stamped numbers on them that can also be used to match part numbers, however, these may change depending on the supplier.

P/N Item Description Part Marking* Shock Type

A1028 King 3/4" ID X 1/2" Length DU Bushing TSI12PT08Z PR 2.0 (3/4" Shaft)
A1021 King 3/4" ID X 3/4" Length DU Bushing TSI12PT12Z PR 2.0/2.5 (3/4" Shaft)

A1027 King 7/8" ID X 1/2" Length DU Bushing 14IB08 PR 2.0/2.5
A1022 King 7/8" ID X 3/4" Length DU Bushing 14MG12 PR 2.0/2.5, RS 2.0/2.5

A1023 King 1" ID X 1" Length DU Bushing TSI16PT16Z PR 3.0, RS 3.0/3.5

A1024 King 1-1/4" ID X 1/2" Length DU Bushing 20IB08 2.0 AS/BS
A1025 King 1-1/4" ID X 1" Length DU Bushing 20IB16 RS 3.0 (Big Cap)/4.0/4.5
A1026 King 1-5/8" ID X 5/8" Length DU Bushing TSI26PT10Z 2.5 AS/BS

PR = Performance Series | RS = Pure Race Series | AS = Air Shock | BS = Bump Stop
*Part markings may change depending on supplier, double check bushing measurements when ordering.



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


Parts Included In King Shock Seal Kits:
(Not all shock models contain all of these parts. Kit contents adjusted accordingly.)

King Shocks Seal Kit

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.

Was this review helpful to you?

  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!

Was this review helpful to you?