Duramax 2004.5–2005 LLY

DURAMAX HD — CHEVY & GMC 2500/3500 HD · SILVERADO 4500/5500/6500 HD

DURAMAX 2004.5–2005 LLY · 6.6L

Saved to your garage — every page now filters to this truck.

Parts that fit

2004.5-2005 Duramax HD EFI Live Tuners & Tunes
Fits your truck ✓

EFI Live Tuners & Tunes

04.5–05 Duramax

EFI Live

From $749.99
View product
2004.5-2005 Duramax HD EFI Live Tunes ONLY
Fits your truck ✓

EFI Live Tunes ONLY

04.5–05 Duramax

EFI Live

From $399.99
View product
2001-2007 Duramax HD Full Exhaust System
Fits your truck ✓

Full Exhaust System

01–07 Duramax

White Label

From $559.99
View product
2004.5-2005 Duramax HD SOTF Switch
Fits your truck ✓

SOTF Switch

04.5–05 Duramax

The Diesel Techs

$79.99
View product
2004.5-2005 Duramax HD EGR Delete Kit
Fits your truck ✓

EGR Delete Kit

04.5–05 Duramax

The Diesel Techs

$189.99
View product
2004.5-2005 Duramax HD Cold Air Intakes
Fits your truck ✓

Cold Air Intakes

04.5–05 Duramax

The Diesel Techs

$399.99
View product
2001-2026 Straight Through Muffler
Fits your truck ✓

Straight Through Muffler

01–23 Duramax

White Label

$139.99
View product
2001-2026 Stainless Steel Exhaust Tip
Fits your truck ✓

Stainless Steel Exhaust Tip

01–23 Duramax

The Diesel Techs

$99.99
View product
2001-2016 Duramax HD Up Pipes
Fits your truck ✓

Up Pipes

01–16 Duramax

The Diesel Techs

$149.99
View product
2004.5-2010 Duramax HD 3" Downpipe
Fits your truck ✓

3" Downpipe

04.5–10 Duramax

The Diesel Techs

$199.99
View product
2001-2026 HP MPVI4 Tuner Blank
Blank
Fits your truck ✓

HP MPVI4 Tuners & Tunes

01–23 Duramax

HP

$409.99
View product
2001-2026 Muffler Delete Pipe
Fits your truck ✓

Muffler

01–26 Duramax

The Diesel Techs

$99.99
View product
2004.5-2007 Duramax HD MM3 Tunes ONLY
Fits your truck ✓

MM3 Tunes ONLY

04.5–07 Duramax

MM3

From $549.99
View product