We may receive a commission on purchases made from links. The Duramax 6.6L V8 diesel engine was a huge moment for General Motors' heavy-duty trucks. Even though it looks pretty similar on the outside ...

The Chevy/GMC Duramax 6.6-liter diesel engine has proven to be a powerful and reliable workhorse since introduced in 2001. There were several variations of the 6.6 Duramax. They are broken down by the ...