LLY Duramax | 2004.5–2005
Shop parts for 2004.5–2005 GM trucks equipped with the 6.6L LLY Duramax. Browse injectors, fuel system components, turbo and intake upgrades, cooling system parts, engine components, transmission upgrades, maintenance items, and performance parts selected for LLY applications. Always verify your exact year, model, and product fitment before ordering.
WC Fab Stage 2 High Flow Intake Kit - WCFab Red - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Illusion Purple - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Chevy Orange - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Candy Red - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Sparkle Bomber Orange - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Candy Teal - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Bengal Grey - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Bronze Chrome - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Brizzle Blue - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Cat Yellow - LLY Duramax
WC Fab 4" Intake Kit with Air Box - WCFab Red - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Semi-Gloss Black - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Gloss White - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Fine Texture Black - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Gun Metal - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Bengal Blue - LLY Duramax
WC Fab 4" Intake Kit with Air Box - Gloss Black - LLY Duramax
Merchant Automotive S400 Valley-Mount Turbo Oil Line Kit - LLY Duramax
BD Diesel Allison Transmission & Multidisc Converter Package - LLY Duramax
WC Fab 3-inch Cold-Side Intercooler Pipe - Cat Yellow - LLY Duramax
Merchant Automotive MAximum Work Allison 1000 Transmission - 2WD - LLY Duramax
S&S Diesel 45% Over SAC Reman Injector Set - LLY Duramax
Dorman Products Diesel Fuel Cooler - LLY Duramax
Garrett Turbo Vane Position Sensor - LLY Duramax
Shopping LLY Duramax | 2004.5–2005
Hilltop Diesel Performance organizes parts around real truck fitment so you can move from platform to the component you need without digging through an unrelated catalog. For Duramax applications, start with your exact year and engine, then verify configuration-specific notes on the product page before ordering.
Common upgrade and service paths include fuel delivery, injectors, turbochargers, intake and charge-air parts, exhaust, cooling, transmission components, filtration, sensors, gaskets, hardware and supporting installation parts.