2025 CVO 121 High Output Engine (NEW TAKE OFF)

CVO Milwaukee-Eight 121 High Output Engine Harley-Davidson 1977cc V-Twin 
Condition: New – Open box
Brand: Harley-Davidson

Item Specifics
•    Brand: Harley-Davidson
•    Manufacturer Part Number: (enter)
•    Engine Size: 121 cu in / 1,977 cc
•    Engine Type: V-Twin
•    Horsepower: 127 HP @ 4,900 rpm
•    Torque: 145 ft-lb @ 4,000 rpm
•    Compression Ratio: 11.4:1
•    Valvetrain: 4 valves per cylinder, hydraulic self-adjusting lifters
•    Intake: Heavy Breather high-flow
•    Fits: CVO Road Glide ST, CVO Street Glide ST
•    Country/Region of Manufacture: United States


CVO™ Milwaukee-Eight® 121 High Output Engine
The performance heart of the Harley-Davidson CVO ST lineup. The Milwaukee-Eight 121 High Output is engineered for harder pulls, stronger upper-rpm performance, and aggressive throttle response in a factory-built bagger. High Output tuning paired with a performance intake delivers more peak power than the standard 121 platform — a V-twin that revs higher and hits harder with every twist of the throttle.

Key Specs

•    Displacement: 1,977 cc (121 cu in)
•    Horsepower: 127 HP @ 4,900 rpm
•    Torque: 145 ft-lb @ 4,000 rpm
•    Compression: 11.4:1
•    Redline: ~5,900 rpm
•    Valvetrain: 4 valves per cylinder, hydraulic self-adjusting lifters
•    Intake: Heavy Breather high-flow intake
•    Application: CVO Road Glide ST / CVO Street Glide ST

What’s Included
•    1x CVO Milwaukee-Eight 121 High Output engine assembly
•    (list any included accessories, harnesses, ECM, intake, etc.)