The Komatsu D155A-1 is a specific model of bulldozer manufactured by Komatsu. While I don't have access to the latest specifications and details beyond my knowledge cutoff in September 2021, I can provide you with some general information about the Komatsu D155A-1 based on historical data.

The Komatsu D155A-1 is a large, powerful bulldozer that falls into the category of Komatsu's medium-sized bulldozers. Here are some key features and specifications typically associated with this model:

1. Engine: The D155A-1 is equipped with a Komatsu diesel engine, which provides substantial power output to handle demanding tasks.
2. Horsepower: The engine in the D155A-1 has a considerable horsepower rating, typically in the range of several hundred horsepower.
3. Blade Capacity: This bulldozer generally comes with a large, heavy-duty blade at the front for pushing and moving materials. The blade capacity can vary, but it is typically around 8 to 9 cubic meters (approximately 10.5 to 11.8 cubic yards).
4. Operating Weight: The operating weight of the D155A-1 is typically around 36 to 38 metric tons (40 to 42 short tons). This weight helps provide stability and traction for efficient operation.
5. Transmission: The bulldozer is equipped with a power-shift transmission system that allows for smooth gear shifting and efficient power transfer.
6. Undercarriage: The undercarriage of the D155A-1 typically consists of heavy-duty tracks, rollers, and idlers, designed to withstand rugged terrains and provide stability and traction.
7. Operator Comfort: The D155A-1 is designed to provide a comfortable working environment for the operator. The cabin is generally spacious, with ergonomic controls, good visibility, and features like air conditioning for enhanced comfort during long working hours.