MR103 Cam Kit — Chain, Exhaust 252°, Intake 226°

S&S CYCLE MR103 Cam Kit — Chain, Exhaust 252°, Intake 226° – 06-17 Dyna, 07-16 Touring, 09-12 Trike, 07-17 Softail

S&S CYCLE
0925-1143
330-0470
Bolt-in cam for 103" engines; more midrange power and torque from 2500–5500 rpm. Works with stock and S&S CNC-ported heads. Professional installation required; check clearances.
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The MR103 Cam Kit delivers stronger midrange performance and broader torque across the rpm band. 🔧🇺🇸

  • Bolt-in camshaft for 103" engines with stock 8.7:1 compression ratio up to 10.5:1 compression ratio.
  • Works with stock, un-ported heads, but is great for S&S CNC ported heads.
  • More power across the rpm range; best results from 2500 rpm - 5500 rpm.
  • Made in the USA.
  • Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
  • A hydraulic press and other professional-level tools are required for installation.
  • S&S recommends that adjustable pushrod/covers be used.
  • Camshaft bearings and gaskets must be replaced when installing new camshafts.

Designed for experienced technicians and professional installation. Follow all safety procedures and verify clearances before first start-up.

: 0925-1143
In Stock

Data sheet

Type
Chain
Units
Kit
Brand
S&S CYCLE
Application
Exhaust, Intake
Grind
MR103
Exhaust Close
22°
Exhaust Duration
252°
Exhaust Lift
0,585"
Exhaust Lift at TDC
0,177"
Exhaust Lobe Centerline
104°
Exhaust Open
50°
Intake Close
33°
Intake Duration
226°
Intake Lift
0,585"
Intake Lift at TDC
0,172"
Intake Lobe Centerline
100°
Intake Open
13°
Harley Family
Dyna
Softail
Touring
Trike

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Dyna Switchback Dyna 2012
Harley Davidson Dyna Switchback Dyna 2013
Harley Davidson Dyna Switchback Dyna 2012
Harley Davidson Dyna Switchback Dyna 2013
Harley Davidson Dyna Switchback Dyna 2014
Harley Davidson Dyna Switchback Dyna 2015
Harley Davidson Dyna Switchback Dyna 2016
Harley Davidson Road King Touring 2007
Harley Davidson Road King Touring 2008
Harley Davidson Road King Touring 2009
Harley Davidson Road King Touring 2010
Harley Davidson Road King Touring 2011
Harley Davidson Road King Touring 2008
Harley Davidson Road King Touring 2009
Harley Davidson Road King Touring 2010
Harley Davidson Road King Touring 2011
Harley Davidson Road King Touring 2012
Harley Davidson Road King Touring 2013
Harley Davidson Road King Touring 2014
Harley Davidson Road King Touring 2015
Harley Davidson Road King Touring 2012
Harley Davidson Road King Touring 2013
Harley Davidson Road King Touring 2014
Harley Davidson Road King Touring 2015
Harley Davidson Road King Touring 2016
Harley Davidson Road King Classic Touring 2007
Harley Davidson Road King Classic Touring 2008
Harley Davidson Road King Classic Touring 2009
Harley Davidson Road King Classic Touring 2010
Harley Davidson Road King Classic Touring 2008
Harley Davidson Road King Classic Touring 2009
Harley Davidson Road King Classic Touring 2010
Harley Davidson Road King Classic Touring 2011
Harley Davidson Road King Classic Touring 2011
Harley Davidson Road King Classic Touring 2012
Harley Davidson Road King Classic Touring 2013
Harley Davidson Road King Classic Touring 2014
Harley Davidson Road King Classic Touring 2015
Harley Davidson Road King Classic Touring 2016
Harley Davidson Road King Custom Touring 2007
Harley Davidson Electra Glide Touring 2007
Harley Davidson Electra Glide Touring 2008
Harley Davidson Electra Glide Touring 2009
Harley Davidson Electra Glide Touring 2010
Harley Davidson Electra Glide Touring 2008
Harley Davidson Electra Glide Touring 2009
Harley Davidson Electra Glide Touring 2010
Harley Davidson Electra Glide Classic Touring 2007
Harley Davidson Electra Glide Classic Touring 2008
Harley Davidson Electra Glide Classic Touring 2009
Harley Davidson Electra Glide Classic Touring 2010
Harley Davidson Electra Glide Classic Touring 2011
Harley Davidson Electra Glide Classic Touring 2009
Harley Davidson Electra Glide Classic Touring 2010
Harley Davidson Electra Glide Classic Touring 2011
Harley Davidson Electra Glide Classic Touring 2012
Harley Davidson Electra Glide Classic Touring 2013
Harley Davidson Electra Glide Classic Touring 2011
Harley Davidson Electra Glide Classic Touring 2012
Harley Davidson Electra Glide Classic Touring 2013
Harley Davidson Electra Glide Ultra Classic Touring 2007
Harley Davidson Electra Glide Ultra Classic Touring 2009
Harley Davidson Electra Glide Ultra Classic Touring 2010
Harley Davidson Electra Glide Ultra Classic Touring 2011
Harley Davidson Electra Glide Ultra Classic Touring 2008
Harley Davidson Electra Glide Ultra Classic Touring 2009
Harley Davidson Electra Glide Ultra Classic Touring 2010
Harley Davidson Electra Glide Ultra Classic Touring 2011
Harley Davidson Electra Glide Ultra Classic Touring 2012
Harley Davidson Electra Glide Ultra Classic Touring 2013
Harley Davidson Electra Glide Ultra Classic Touring 2012
Harley Davidson Electra Glide Ultra Classic Touring 2013
Harley Davidson Electra Glide Ultra Classic Touring 2014
Harley Davidson Electra Glide Ultra Classic Touring 2015
Harley Davidson Electra Glide Ultra Classic Touring 2016
Harley Davidson Electra Glide Ultra Classic Low Touring 2015
Harley Davidson Electra Glide Ultra Classic Low Touring 2016
Harley Davidson Trike Tri Glide Ultra Classic Trike 2009
Harley Davidson Trike Tri Glide Ultra Classic Trike 2010
Harley Davidson Trike Tri Glide Ultra Classic Trike 2011
Harley Davidson Trike Tri Glide Ultra Classic Trike 2012
Harley Davidson Electra Glide Ultra Limited Touring 2010
Harley Davidson Electra Glide Ultra Limited Touring 2011
Harley Davidson Electra Glide Ultra Limited Touring 2011
Harley Davidson Electra Glide Ultra Limited Touring 2012
Harley Davidson Electra Glide Ultra Limited Touring 2013
Harley Davidson Electra Glide Ultra Limited Touring 2014
Harley Davidson Electra Glide Ultra Limited Touring 2015
Harley Davidson Electra Glide Ultra Limited Touring 2016
Harley Davidson Electra Glide Ultra Limited Low Touring 2015
Harley Davidson Electra Glide Ultra Limited Low Touring 2016
Harley Davidson Street Glide Touring 2007
Harley Davidson Street Glide Touring 2008
Harley Davidson Street Glide Touring 2009
Harley Davidson Street Glide Touring 2010
Harley Davidson Street Glide Touring 2011
Harley Davidson Street Glide Touring 2008
Harley Davidson Street Glide Touring 2009
Harley Davidson Street Glide Touring 2010
Harley Davidson Street Glide Touring 2011
Harley Davidson Street Glide Touring 2011
Harley Davidson Street Glide Touring 2012
Harley Davidson Street Glide Touring 2013
Harley Davidson Street Glide Touring 2014
Harley Davidson Street Glide Touring 2015
Harley Davidson Street Glide Touring 2016
Harley Davidson Street Glide Touring 2011
Harley Davidson Street Glide Touring 2012
Harley Davidson Street Glide Touring 2013
Harley Davidson Street Glide Touring 2014
Harley Davidson Street Glide Touring 2015
Harley Davidson Street Glide Touring 2016
Harley Davidson Street Glide Special Touring 2014
Harley Davidson Street Glide Special Touring 2015
Harley Davidson Street Glide Special Touring 2016
Harley Davidson Trike Street Glide Touring 2010
Harley Davidson Trike Street Glide Touring 2011
Harley Davidson Softail Slim Softail 2012
Harley Davidson Softail Slim Softail 2013
Harley Davidson Softail Slim Softail 2014
Harley Davidson Softail Slim Softail 2015
Harley Davidson Softail Slim Softail 2016
Harley Davidson Softail Slim Softail 2017
Harley Davidson Softail Slim Softail 2012
Harley Davidson Softail Slim Softail 2013
Harley Davidson Softail Slim Softail 2014
Harley Davidson Softail Slim Softail 2015
Harley Davidson Softail Slim Softail 2016
Harley Davidson Softail Slim Softail 2017
Harley Davidson Heritage Softail Classic Softail 2007
Harley Davidson Heritage Softail Classic Softail 2008
Harley Davidson Heritage Softail Classic Softail 2009
Harley Davidson Heritage Softail Classic Softail 2010
Harley Davidson Heritage Softail Classic Softail 2011
Harley Davidson Heritage Softail Classic Softail 2011
Harley Davidson Heritage Softail Classic Softail 2012
Harley Davidson Heritage Softail Classic Softail 2013
Harley Davidson Heritage Softail Classic Softail 2012
Harley Davidson Heritage Softail Classic Softail 2013
Harley Davidson Heritage Softail Classic Softail 2014
Harley Davidson Heritage Softail Classic Softail 2015
Harley Davidson Heritage Softail Classic Softail 2016
Harley Davidson Heritage Softail Classic Softail 2017
Harley Davidson Fat Boy Softail 2007
Harley Davidson Fat Boy Softail 2008
Harley Davidson Fat Boy Softail 2009
Harley Davidson Fat Boy Softail 2010
Harley Davidson Fat Boy Softail 2011
Harley Davidson Fat Boy Softail 2011
Harley Davidson Fat Boy Softail 2012
Harley Davidson Fat Boy Softail 2013
Harley Davidson Fat Boy Softail 2014
Harley Davidson Fat Boy Softail 2012
Harley Davidson Fat Boy Softail 2013
Harley Davidson Fat Boy Softail 2014
Harley Davidson Fat Boy Softail 2015
Harley Davidson Fat Boy Softail 2016
Harley Davidson Fat Boy Softail 2017
Harley Davidson Fat Boy Special Softail 2010
Harley Davidson Fat Boy Lo Softail 2011
Harley Davidson Fat Boy Special Softail 2011
Harley Davidson Fat Boy Lo Softail 2012
Harley Davidson Fat Boy Lo Softail 2013
Harley Davidson Fat Boy Special Softail 2012
Harley Davidson Fat Boy Special Softail 2013
Harley Davidson Fat Boy Special Softail 2014
Harley Davidson Fat Boy Special Softail 2015
Harley Davidson Fat Boy Special Softail 2016
Harley Davidson Fat Boy Special Softail 2017
Harley Davidson Softail Deluxe Softail 2007
Harley Davidson Softail Deluxe Softail 2008
Harley Davidson Softail Deluxe Softail 2009
Harley Davidson Softail Deluxe Softail 2010
Harley Davidson Softail Deluxe Softail 2011
Harley Davidson Softail Deluxe Softail 2011
Harley Davidson Softail Deluxe Softail 2012
Harley Davidson Softail Deluxe Softail 2013
Harley Davidson Softail Deluxe Softail 2012
Harley Davidson Softail Deluxe Softail 2013
Harley Davidson Softail Deluxe Softail 2014
Harley Davidson Softail Deluxe Softail 2015
Harley Davidson Softail Deluxe Softail 2016
Harley Davidson Softail Deluxe Softail 2017
Harley Davidson Cross Bones Softail 2008
Harley Davidson Cross Bones Softail 2009
Harley Davidson Cross Bones Softail 2010
Harley Davidson Cross Bones Softail 2011
Harley Davidson Softail Springer Classic Softail 2007
Harley Davidson Road Glide Touring 2007
Harley Davidson Road Glide Touring 2008
Harley Davidson Road Glide Touring 2009
Harley Davidson Road Glide Touring 2010
Harley Davidson Road Glide Touring 2009
Harley Davidson Road Glide Touring 2010
Harley Davidson Road Glide Ultra Touring 2011
Harley Davidson Road Glide Ultra Touring 2011
Harley Davidson Road Glide Ultra Touring 2012
Harley Davidson Road Glide Ultra Touring 2013
Harley Davidson Road Glide Ultra Touring 2016
Harley Davidson Road Glide Custom Touring 2010
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Road Glide Custom Touring 2010
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Road Glide Custom Touring 2012
Harley Davidson Road Glide Custom Touring 2013
Harley Davidson Road Glide Touring 2015
Harley Davidson Road Glide Touring 2016
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Road Glide Custom Touring 2012
Harley Davidson Road Glide Custom Touring 2013
Harley Davidson Road Glide Touring 2015
Harley Davidson Road Glide Touring 2016
Harley Davidson Road Glide Special Touring 2015
Harley Davidson Road Glide Special Touring 2016
Harley Davidson Rocker Softail 2008
Harley Davidson Rocker Softail 2009
Harley Davidson Rocker C Softail 2008
Harley Davidson Rocker C Softail 2009
Harley Davidson Rocker C Softail 2010
Harley Davidson Rocker C Softail 2011
Harley Davidson Rocker C Softail 2011
Harley Davidson Dyna Super Glide Dyna 2007
Harley Davidson Dyna Super Glide Dyna 2008
Harley Davidson Dyna Super Glide Dyna 2009
Harley Davidson Dyna Super Glide Dyna 2010
Harley Davidson Dyna Street Bob Dyna 2007
Harley Davidson Dyna Street Bob Dyna 2008
Harley Davidson Dyna Street Bob Dyna 2009
Harley Davidson Dyna Street Bob Dyna 2010
Harley Davidson Dyna Street Bob Dyna 2011
Harley Davidson Dyna Street Bob Dyna 2012
Harley Davidson Dyna Street Bob Dyna 2013
Harley Davidson Dyna Street Bob Dyna 2012
Harley Davidson Dyna Street Bob Dyna 2013
Harley Davidson Dyna Street Bob Dyna 2014
Harley Davidson Dyna Street Bob Dyna 2015
Harley Davidson Dyna Street Bob Dyna 2016
Harley Davidson Dyna Street Bob Dyna 2017
Harley Davidson Dyna Street Bob Dyna 2014
Harley Davidson Dyna Street Bob Dyna 2015
Harley Davidson Dyna Street Bob Dyna 2016
Harley Davidson Dyna Street Bob Dyna 2017
Harley Davidson Dyna Street Bob Limited Dyna 2013
Harley Davidson Dyna Street Bob Limited Dyna 2013
Harley Davidson Dyna Street Bob Limited Dyna 2013
Harley Davidson Dyna Street Bob Limited Dyna 2013
Harley Davidson Dyna Street Bob Special Dyna 2014
Harley Davidson Dyna Street Bob Special Dyna 2015
Harley Davidson Dyna Street Bob Special Dyna 2014
Harley Davidson Dyna Street Bob Special Dyna 2015
Harley Davidson Dyna Street Bob Limited Dyna 2016
Harley Davidson Dyna Street Bob Limited Dyna 2016
Harley Davidson Dyna Street Bob Dyna 2006
Harley Davidson Dyna Street Bob Factory Custom Dyna 2013
Harley Davidson Dyna Street Bob Factory Custom Dyna 2014
Harley Davidson Dyna Street Bob Factory Custom Dyna 2015
Harley Davidson Dyna Street Bob Factory Custom Dyna 2016
Harley Davidson Dyna Street Bob Factory Custom Dyna 2013
Harley Davidson Dyna Street Bob Factory Custom Dyna 2014
Harley Davidson Dyna Street Bob Factory Custom Dyna 2015
Harley Davidson Dyna Street Bob Factory Custom Dyna 2016
Harley Davidson Dyna Super Glide Custom Dyna 2007
Harley Davidson Dyna Super Glide Custom Dyna 2008
Harley Davidson Dyna Super Glide Custom Dyna 2009
Harley Davidson Dyna Super Glide Custom Dyna 2010
Harley Davidson Dyna Super Glide Custom Dyna 2011
Harley Davidson Dyna Super Glide Custom Dyna 2012
Harley Davidson Dyna Super Glide Custom Dyna 2013
Harley Davidson Dyna Super Glide Custom Dyna 2012
Harley Davidson Dyna Super Glide Custom Dyna 2013
Harley Davidson Dyna Super Glide Custom Dyna 2014
Harley Davidson Dyna Super Glide Custom Dyna 2014
Harley Davidson Dyna Super Glide Custom Dyna 2006
Harley Davidson Dyna Fat Bob Dyna 2008
Harley Davidson Dyna Fat Bob Dyna 2009
Harley Davidson Dyna Fat Bob Dyna 2010
Harley Davidson Dyna Fat Bob Dyna 2011
Harley Davidson Dyna Fat Bob Dyna 2012
Harley Davidson Dyna Fat Bob Dyna 2012
Harley Davidson Dyna Fat Bob Dyna 2013
Harley Davidson Dyna Fat Bob Dyna 2014
Harley Davidson Dyna Fat Bob Dyna 2015
Harley Davidson Dyna Fat Bob Dyna 2016
Harley Davidson Dyna Fat Bob Dyna 2017
Harley Davidson Dyna Fat Bob Dyna 2012
Harley Davidson Dyna Fat Bob Dyna 2013
Harley Davidson Dyna Fat Bob Dyna 2014
Harley Davidson Dyna Fat Bob Dyna 2015
Harley Davidson Dyna Fat Bob Dyna 2016
Harley Davidson Dyna Fat Bob Dyna 2017
Harley Davidson Dyna Super Glide Dyna 2006
Harley Davidson Dyna Super Glide 35th Anniversary Dyna 2006
Harley Davidson Dyna Low Rider Dyna 2007
Harley Davidson Dyna Low Rider Dyna 2008
Harley Davidson Dyna Low Rider Dyna 2009
Harley Davidson Dyna Low Rider Dyna 2014
Harley Davidson Dyna Low Rider Dyna 2015
Harley Davidson Dyna Low Rider Dyna 2016
Harley Davidson Dyna Low Rider Dyna 2017
Harley Davidson Dyna Low Rider Dyna 2014
Harley Davidson Dyna Low Rider Dyna 2015
Harley Davidson Dyna Low Rider Dyna 2016
Harley Davidson Dyna Low Rider Dyna 2017
Harley Davidson Dyna Low Rider Dyna 2006
Harley Davidson Dyna Wide Glide Dyna 2007
Harley Davidson Dyna Wide Glide 105th Anniversary Dyna 2008
Harley Davidson Dyna Wide Glide Dyna 2010
Harley Davidson Dyna Wide Glide Dyna 2011
Harley Davidson Dyna Wide Glide Dyna 2012
Harley Davidson Dyna Wide Glide Dyna 2012
Harley Davidson Dyna Wide Glide Dyna 2013
Harley Davidson Dyna Wide Glide Dyna 2012
Harley Davidson Dyna Wide Glide Dyna 2013
Harley Davidson Dyna Wide Glide Dyna 2014
Harley Davidson Dyna Wide Glide Dyna 2015
Harley Davidson Dyna Wide Glide Dyna 2016
Harley Davidson Dyna Wide Glide Dyna 2017
Harley Davidson Dyna Wide Glide Dyna 2006
Harley Davidson Blackline Softail 2011
Harley Davidson Blackline Softail 2011
Harley Davidson Blackline Softail 2012
Harley Davidson Blackline Softail 2012
Harley Davidson Blackline Softail 2013
Harley Davidson Blackline Softail 2012
Harley Davidson Blackline Softail 2013
Harley Davidson Breakout Softail 2013
Harley Davidson Breakout Softail 2013
Harley Davidson Breakout Softail 2014
Harley Davidson Breakout Softail 2015
Harley Davidson Breakout Softail 2016
Harley Davidson Breakout Softail 2017
Harley Davidson Softail Softail 2007
Harley Davidson Softail Night Train Softail 2007
Harley Davidson Softail Night Train Softail 2008
Harley Davidson Softail Night Train Softail 2009
Harley Davidson Softail Custom Softail 2007
Harley Davidson Softail Custom Softail 2008
Harley Davidson Softail Custom Softail 2009
Harley Davidson Softail Custom Softail 2010
Harley Davidson Softail Deuce Softail 2007