OEM Harley Screamin Eagle M8 Engine Stage IV Cylinders Exhaust Touring 107-128

OEM Harley Screamin Eagle M8 Engine Stage IV Cylinders Exhaust Touring 107-128

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OEM Harley Screamin Eagle M8 Engine Stage IV Cylinders Exhaust Touring 92500078  changes your 107 to a 128!!!

Part #: 92500078

The Harley-Davidson part number 92500078 Screamin' Eagle Milwaukee-Eight Engine Stage IV Kit - 107CI to 128CI includes a comprehensive set of performance components designed to maximize engine output.

The Harley-Davidson part number 92500078, the Screamin' Eagle Milwaukee-Eight Engine Stage IV Kit - 107CI to 128CI, includes performance components designed to deliver significant horsepower and torque increases, with claimed outputs of up to 121 HP and 126 ft-lb of torque to the rear wheel when paired with Screamin' Eagle Street Cannon Mufflers. 

The Screamin' Eagle Milwaukee-Eight Engine Stage IV Kit (part number 92500078) is designed to upgrade a 107CI engine to 128CI. It is intended for '17-later Touring models equipped with the air/oil-cooled Milwaukee-Eight 107CI engine, excluding Trike and California models. Installation requires ECM recalibration and does not necessitate engine removal. 

The kit includes the following genuine Screamin' Eagle performance parts: 

  • Screamin' Eagle CNC Ported Cylinder Heads
     with CNC machined chambers and 1mm larger valves.
  • Screamin' Eagle 4.31" Steel Sleeve Cylinders
     to increase the bore and overall displacement.
  • Forged High Compression Pistons and matching high-performance piston rings.
  • SE8-517 High-Lift Cam
     designed to work with the high-flow heads and increased displacement.
  • Screamin' Eagle High Performance Tappets.
  • Screamin' Eagle High Performance Cam Bearing.
  • Screamin' Eagle 64mm Throttle Body and Cast Manifold
     for increased airflow.
  • Screamin' Eagle High Flow Injectors (rated at 5.5 g/sec).
  • Gasket Kit including multi-layer coated head gaskets, top end, cylinder base, and cam cover gaskets.
  • 128 Stage IV Timer Cover
     for a finished look.
  • A Fan-assisted Oil Cooler Kit is also included with this specific oil-cooled version of the kit.

Fitment: The Harley-Davidson part number 92500078 is specifically designed for '17-later air/oil-cooled Touring models equipped with the Milwaukee-Eight 107CI engine, with some specific exclusions and additional requirements.

  • Compatible Models:
    • Year/Model: Fits all '17-later Harley-Davidson Touring models that are equipped with an air/oil-cooled Milwaukee-Eight 107CI engine.
    • Emissions Compliance: It is 49-State U.S. EPA compliant for these models, meaning it is not legal for sale or use in California on pollution-controlled motor vehicles.
  • Exclusions:
    • Motorcycle Type: Does not fit Trike models.
    • Location: Does not fit California models (a separate part number 92500111 is available for California-compliant versions).

Please make sure of fitment before buying.

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