Harley-Davidson engines are known for their durability and longevity. While it's difficult to provide an exact mileage that a Harley engine will last, with proper maintenance and care, they can often reach high mileage figures.
Many Harley owners have reported their engines lasting well over 100,000 miles (160,000 kilometers) and some even exceeding 200,000 miles (320,000 kilometers). However, it's important to note that several factors can influence the lifespan of a motorcycle engine, including maintenance, riding style, environmental conditions, and the specific model and year of the Harley.
Proper maintenance is crucial to ensure the longevity of any motorcycle engine, including regular oil changes, periodic inspections, and adherence to the manufacturer's recommended service intervals. Additionally, riding the motorcycle responsibly and avoiding excessive stress or strain on the engine can contribute to its longevity.
If you're considering purchasing a used Harley-Davidson motorcycle, it's always a good idea to review its maintenance history, consult with a trusted mechanic, and conduct a thorough inspection to assess the overall condition of the engine and other critical components.
Ultimately, how long a Harley engine lasts will depend on various factors, but with proper care, it's possible to enjoy many miles of riding before needing major engine repairs or replacements.