Diesel Engines Market Size, Share & Demand Report By Horsepower (Low Horsepower, Medium Horsepower, High Horsepower), By Application (Commercial Vehicles, Power Generation, Marine, Construction Equipment, Agricultural Equipment, Mining Equipment), By End-Use Industry (Transportation, Industrial, Agriculture, Energy & Utilities, Marine & Shipping), By Cooling Type (Air-Cooled, Liquid-Cooled), By Region & Segment Forecasts, 2025–2034