Screamin' Eagle High-Capacity Tappets

Part Number 18572-13




This latest version of the Screamin’ Eagle® High-Capacity Tappet incorporates a special heat treatment on the bearing needles and axle. In addition to the already proven, 25% larger, high capacity needle bearings, this new heat treat technology increases material hardness and compressive strength, ultimately enabling the tappet to withstand the grueling engine speeds and high valve lift found in many performance engine configurations. The newest technology is identified with a laser-etched “SE” on the axle of the tappet (shown in product image).

  • Special heat treatment on needle bearing and bearing axle
  • Large, high-capacity needles; 25% larger than Original Equipment
  • Superior tappet life in high-performance applications
  • Set of 4

Fits '99-'17 Twin Cam-equipped models, '00-later XL and XR models, and '17-later Milwaukee-Eight® equipped models.

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  • These Screamin' Eagle® products are 50-State U.S. EPA compliant for sale and use on all applicable vehicles, including those that are pollution controlled. See Genuine Motor Parts and Accessories or Screamin' Eagle Accessories catalog for fitment information. Screamin' Eagle Performance products are intended for the experienced rider only.
  • Requires ECM Calibration

  • Sold in Unit

    Set of 4
  • In The Box

    4 tappets
  • Upgrade Stage Level

    Stage II

are new camshafts required for new roller lifters

Asked by: exhaust123
Hello Exhaust123, No, you do not need to install new camshafts to use the SE Tappets. Thank You!
Answered by: JD34
Date published: 2015-06-01

Are these tappets exactly the same dimensons as the stock tappets?

Are the Height, width, plunger travel the same as stock?
Asked by: Toofast
Hello Toofast, Yes, the dimensions are the same as the OEM lifters. Thank You!
Answered by: JD34
Date published: 2015-03-19

When installing new SE tappets, is there a front and rear, or can they go in either way?

Also, I don't see the 7500 mile replacement recommendation in the new SE parts book. Should they be replaced at 7500 miles with .555 lift?
Asked by: Toofast
Hello Toofast, Please consult your service manual for the installation and service limits. Thank You!
Answered by: JD34
Date published: 2016-02-06

Why 7500 mile service interval ?

2014 S-E cat. page 46 note states that these tappets should be replaced every 7500 miles with use of S-E high perf' cams. So why dont I need to do similar replacement to high performance roller cam applications in sb ford or chevy engines. seems unusual.
Asked by: exhaust123
To begin with you should never use automotive roller lifters in a Harley Davidson engine.Although GM roller lifters will work in your Harley, be fore warned you will cause accelerated wear on your valve train parts. The oil metering engineering of the respective lifters is not the same.Lifters manufactured for a Harley Davidson engine work harder to push enough oil to your valve train. With high lift cams and higher valve spring pressures it is just best to have a life cycle maintenance interval.Unless of course you would prefer little needle bearings breaking up and going through your engine. Enough said!
Answered by: BLUESTEAD13
Date published: 2018-02-10

Are these tappets made in the U.S.A.

Asked by: exhaust123
Hi exhaust123, Yes, these are made in the U.S.
Answered by: PeteHD
Date published: 2016-02-06
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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.