What engine is in 1960 cat D7 bulldozer?

The 1960 Caterpillar D7 bulldozer is typically equipped with a Caterpillar D334 engine. This diesel engine has a displacement of around 6.6 liters and is known for its durability and reliability in heavy-duty applications. The D334 engine provides the power necessary for the D7's performance in various construction and earth-moving tasks.