# What Does The LLY Code Stand For On Duramax Diesel Engines?

> The General Motors Duramax turbodiesel engine family has evolved a lot since these heavy-duty pickup truck engines first came onto the scene in the early 2000s.

- **Source:** [SlashGear](https://www.slashgear.com/2131856/what-does-lly-code-stand-for-duramax-diesel-engines/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=69ca9b41abdae75026a1218c)
- **Published:** 2026-03-30
- **Category:** Cars
- **Tags:** #duramax #engines #code #diesel #does #others #stand #turbodiesel
- **Canonical:** http://localhost:4321/a/69ca9b41abdae75026a1218c

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._