Screamin' Eagle Performance Valve Spring Kit

Part Number 18013-03A




This performance Beehive-shaped Valve Spring Kit will permit the Sportster® engine to rev to 7000 RPM. The unique ovate wire yields increase performance from a compact spring design.

  • Installed spring pressure is increased to 208 lb. and allows a maximum lift of .590"
  • Complete kit includes springs, upper collars with keepers, and lower collars with integral valve seals

Fits ’04-later XL, XR and ’05-'17 Twin Cam-equipped models. Does not fit FXDLS, FLSS, FLSTFBS or Screamin’ Eagle® Performance Heads with .3125" diameter valves.

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  • Model
  • These Screamin' Eagle® products are 50-state street-legal for sale and use on all vehicles, including those that are pollution controlled. Complies with the requirements of 40 CFR Part 86, subparts E and F.


Proper valve spring to rocker cover clearance must always be verified during installation of Screamin' Eagle® Valve Spring Kits. Failure to have adequate clearance may result in engine damage.

  • Warranty

    1 year limited warranty – Go to for full details
  • Requires ECM Calibration

  • Sold in Unit

  • In The Box

    Springs, upper collars with keepers and lower collars with integral valve seals
  • Upgrade Stage Level

    Stage II

Will I need to do any other modifications to my bike to allow it to rev to 7000?

Asked by: Technician799
HI Technician799, It would be best to see your local dealer for assistance. This is a very technical question! Thanks!
Answered by: RowdyGrl79
Date published: 2017-09-25

1550 valve?

I bought a 05 Road King with screaming eagle heads and the 1550 big bore kit in it. I'm in need of valve guides. Is this the correct kit for the big bore kit?
Asked by: Egooch7

Are these valve springs included or compatible with 30003-10 883 to 1200 conversion kit stage I? Will it improve preformance in any way with this kit?

Asked by: BlackedOut

Why won't this spring kit fit a 2004 Twincam?

Asked by: Jeffrga
Hello Jeffrga, This part only will fit on 2004 models Sportser 1200xl Custom Roadster 1200xl Sporter 883 XL and Sportster 883 Custom. Thank you for your question.
Answered by: Iceman25
Date published: 2017-04-26

What performance boost can I expect on my 1200 2007 nightster?

I have Vance and hines sideshots, vance and hines intake and programmer. Just to help
Asked by: Nightster07
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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.