2004.5–2006 Duramax LLY 5-Position Selector Switch Kit

LLY trucks deserve better than “swap files and pray.” This 2004.5–2006 Duramax LLY selector switch kit gives you a clean 5-position in-cab dial (1–5) so you can switch tune levels/features based on your tuning platform and how it’s configured—without dragging a laptop into the driver’s seat every time.

It’s built for a tidy install: protected wiring, straightforward hardware, and a clean OEM-ish finish once mounted.

What’s included (as pictured):

5-position rotary selector switch with wired leads

Knob + numbered dial plate (1–5)

Split-loom conduit for clean routing/protection

Allen key

Fits: 2004.5–2006 GM Duramax LLY