THIS KIT IS FOR OIL-COOLED BIKES ONLY!
OIL-COOLED VERSION IS PART #92500077
This Stage IV Kit was designed to deliver maximum horsepower – all the way to the redline. Features new CNC-ported heads with 1mm bigger valves and fully machined combustion chambers. Coupled with the kit's high-lift SE8-517 cam, high compression pistons and a 64mm throttle body and intake manifold, this combination delivers a thrilling 126 ft-lb of torque and 121 HP rear-wheel output when paired with Screamin' Eagle® Street Cannon Mufflers.. It’s designed to run wide open at high-end RPMs and provide a significant boost of torque from cruising speed. You’ll feel the difference as soon as you twist the throttle. When installed by an authorized Harley-Davidson® Dealer within 60 days of the vehicle purchase, compliant kits do not impact the vehicle’s limited warranty.
• Delivers increased response throughout the entire RPM range
• Provides thrilling acceleration when twisting the throttle
• Maintains flat torque curve from cruising RPM to redline
• Can be installed without removing the engine from chassis 49-State U.S. EPA Compliant on '17-later Touring Models.
Performance components include:
• Screamin’ Eagle CNC Ported Cylinder Head with CNC machined chamber and 1mm larger valves
• 128 Stage IV Timer cover
• SE8-517 High-Lift Cam
• Forged High Compression Pistons
• Screamin’ Eagle High Performance Cam Bearing • Screamin’ Eagle High Performance Tappets
• Screamin’ Eagle 4.31" Steel Sleeve Cylinders
• Screamin’ Eagle 64mm Throttle Body and Cast Manifold
• Screamin’ Eagle High Flow Injectors (5.5 g/sec)
FITMENT: Fits '17-later Touring models equipped with TwinCooled Milwaukee-Eight® 107CI engine. Does not fit Trike models. '17-'19 models require separate purchase of High-Capacity Oil Pump P/N 62400248. '17-'18 Screamin' Eagle High-Capacity Clutch Plate Kit P/N 37000258. All models require ECM recalibration with the Pro Street Tuner for proper installation.
FOR FITMENT QUESTIONS PLEASE CALL US AT 406-727-2161!
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