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  Store > Brands >

King 4.0 Race Series Bypass Shocks "King Kong"
King 4.0 Bypass Shock Images
 
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Price: $2,066.25

Minimum order:  2


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Availability: Special Order 12 Weeks

Part Number: KING-RS40BP

Shock Travel



Reservoir Type







Bypass Tubes





Shock Options













Shock Valving:




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Returns: A 20% restocking fee applies to any authorized returns. Custom and special order shocks are non-returnable and non-refundable.

Sales Tax: King Shocks are only taxable when shipping to CO and WA, however, expedited orders may be taxable to AZ, CA, CO, NV, TX, UT, and WA. If sales tax is not calculated correctly by our website, we will adjust it upon order review.

Note: Some option combinations may not be available at all times.


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Description
 

King 4.0 RS Race Series Bypass Shocks feature large 4.0" cylinders, 31" bypass tubes, and 1.25" diameter shock shafts and are intended for high speed desert racing applications. Additional Race Series features include viton race seals, high flow shock piston, larger 3.46" diameter reservoirs with threaded in end caps and schrader valve caps as well as a three bolt wiper cap and extra large seal head for maximum strength and durability.


Shock Tuning Options
As soon as you place your order, one of our experienced shock tuning experts will review your shock specifications and contact you to finalize the details of your order. All King shocks are available with standard or custom tuning. For custom tuning, one of our shock tuning experts will work with you one-on-one to ensure your shocks are built perfectly for your application to provide the best balance of performance and ride quality. We will also help you determine the proper bypass tube layout and configuration for your vehicle. Standard valving is also available for do-it-yourself clients or those that plan to re-valve the shocks themselves with one of our King valve stack kits. Our standard valving is calculated to work well for most typical applications that would utilize this size shock.


Shock Specifications
The following standard sizes of 4.0 bypass shocks are available:

King P/N Body Dia. Travel Shaft Dia. Compressed Extended

RS4012-BP 4.0" 12" 1.25" 21.81" 33.81"
RS4014-BP 4.0" 14" 1.25" 24.56" 38.56"
RS4016-BP 4.0" 16" 1.25" 27.31" 43.31"
RS4018-BP 4.0" 18" 1.25" 30.06" 48.06"
RS4020-BP 4.0" 20" 1.25" 32.06" 52.06"

Compressed and extended shock lengths are measured from eye-to-eye.
Some shock options may alter shock dimensions.
(Shocks ship uncharged.)

How to Measure For Shocks and Coilovers




[King Shocks | Ordering | Shock Types | Combinations | Shock Options | Unboxing | Maintenance]


Servicing, Tuning, and Rebuilding
All King Shocks are fully serviceable, tunable, and rebuildable so any parts that wear out or get damaged can be replaced. When your shocks are due for service or need a repair, Filthy Motorsports has you covered with all the parts, instructions, and guidance you need to get the job done. We can also service the shocks for you when that time comes, just contact us and we'll get you on the books.


Learn: How to Service and Rebuild King Shocks:
King Shock Rebuild Instructions & King Shock Replacement Parts
Features
  • Large diameter precision bored and honed, cadmium plated chromoly body
  • Extra larger 1" bypass tubes
  • 1.25" hard chromed, heat treated, micro polished shaft
  • High flow race series bypass piston
  • 3 Bolt heavy duty wiper cap and seal head
  • Extra large 3.46" diameter aluminum reservoir cylinder
  • Threaded reservoir end caps with schrader valve cover
  • Aircraft quality billet aluminum components
  • Heat treated 6061 aluminum alloy piston
  • Heat treated stainless alloy valve shims
  • Fully rebuildable and serviceable
  • Made in the USA


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