Skip to product information
S&S CYCLE 551 Easy Start Camshaft Kit
Style
Before checkout Check fitment, availability, and shipping at a glance. Key order details stay next to the buy button so you can decide with fewer open questions.
Availability In stock Ready for fulfillment
Fitment Confirm compatibility Use title, description, or ask us before ordering
Part number 09250521 S&S CYCLE
Shipping Fast U.S. shipping Processing starts after availability is confirmed
Parts-counter style support, online. Questions about fitment, ETA, or returns can be checked before ordering, and P4M stays responsible for order support after checkout.
Trustpilot 4.2 Great 6 public reviews

S&S CYCLE 551 Easy Start Camshaft Kit

S&S CYCLE 551 Easy Start Camshaft Kit by S&S CYCLE is a engine parts listing built for riders searching by exact product name, fitment, style, and part number.

Key Features

  • Allows for easy start by initially reducing crank compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance
  • Optimized for 88"/96"/103" to 106" Touring bike with slip-on mufflers and 9.0:1 to 9.0:9 compression with stock starter
  • Bolt-in for stock or mildly modified Touring models
  • Greatly improves low-end and midrange torque
  • Strongest from idle to 4000 rpm
  • Includes camshafts, gearcover gasket, bearings, retaining ring, o-ring, threat lock and instructions
  • Made in the USA
  • Not recommended for compression ratios of 10.0:1 or greater.
  • Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
  • Not for models with OEM compression releases.
  • Can be used with stock pushrods, lifters, and springs (unless noted).

Part Numbers

0925-0521, 106-5293, 0925-0443, 106-4947, 0925-0453, 106-5442, 0925-0448, 106-5737

Available Styles

Camshaft Kit / Easy Start / 551 Chain Drive / Big Twin '99-'06; Camshaft Kit / Easy Start / 551 Chain Drive / Twin Cam '07-'17; Camshaft Kit / Easy Start / 551 Gear Drive / Big Twin '99-'06; Camshaft Kit / Easy Start / 551 Gear Drive / Twin Cam '07-'17

Available options: 4

You may also like