Cummins Inc. is an independent company that specializes in the manufacturing of diesel engines. They are a major supplier of diesel engines to many different manufacturers, including:
* Ford: Ford uses Cummins diesel engines in some of their heavy-duty trucks, like the F-Series Super Duty.
* Toyota: Toyota does not use Cummins diesel engines in their vehicles. They typically use their own in-house developed engines or engines from other suppliers like Isuzu.
It's important to note: While Ford uses Cummins diesel engines, they don't actually manufacture them. They are sourced from Cummins directly.
