www.yellowpower.sg/ | Best heavy equipment in Singapore. The D9R Caterpillar is a large track-type tractor commonly used in construction and mining applications. It is known for its power, durability, and versatility in handling heavy-duty tasks. Here are some key features of the D9R Caterpillar: Engine: The D9R is equipped with a powerful Caterpillar C18 engine that delivers high horsepower and...