2004.5-2005 LLY
ATS PROTECTOR REAR DIFFERENTIAL COVER
$280.68
The ATS 4029156248 Protector Rear Differential Cover for your 2001-2018 GM 2500HD/3500HD fits on the 14 Bolt - 11.5" American Axle rear axle on your truck. Built from durable aluminum, this rear differential cover allows...
S&B 75-5102D FILTERS COLD AIR INTAKE KIT (DRY FILTER)
$349.00
Outflow the factory air intake system in your 2004.5-2005 GM 6.6L Duramax LLY with the S&B Filters 75-5102D Cold Air Intake Kit with Dry, Disposable Filter. S&B Air Intake systems are engineered to give you...
S&B 75-5102 FILTERS COLD AIR INTAKE KIT (CLEANABLE FILTER)
$349.00
Outflow the factory air intake system in your 2004.5-2005 GM 6.6L Duramax LLY with the S&B Filters 75-5102 Cold Air Intake Kit with Cleanable Filter. S&B Air Intake systems are engineered to give you an...
MAHLE GS33752 WATER PUMP GASKET KIT
$18.96
Ensure your water pump is sealed properly when you add the MAHLE GS33752 Water Pump Gasket Kit to your 2001-2010 GM 6.6L Duramax. Designed as an OEM replacement, the Water Pump Gasket Kit maintains a tight seal...
AFE BLADERUNNER STREET SERIES RADIATOR
$908.25
The AFE 46-52031 BladeRunner Street Series Radiator offers more efficient heat transfer and better cooling than the stock radiator in your 2001-2005 GM 6.6L Duramax. This 4-row core radiator features a 2-3/4" thick tube and...
DORMAN COOLANT RESERVOIR
$82.95
Replace the old cracked Coolant Reservoir on your 2001-2007 GM 6.6L Duramax with the Dorman 603-125 Coolant Reservoir. Dormans Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme...
GM 97241130 REAR THERMOSTAT 2001-2018 GM 6.6L DURAMAX (REAR)
$45.83
The GM 97241130 Rear Thermostat is a factory replacement for your 2001-2018 GM 6.6L Duramax. This Thermostat features the same OE activation temp and is a drop-in replacement for the Rear Thermostat equipped from the...
GM 97241129 FRONT THERMOSTAT 2001-2018 GM 6.6L DURAMAX (FRONT)
$52.44
The GM 97241129 Front Thermostat is a factory replacement for your 2001-2018 GM 6.6L Duramax. This Thermostat features the same OE activation temp and is a drop-in replacement for the Front Thermostat equipped from the factory. ...
PPE COOLANT OVERFLOW TANK
$269.99
The PPE 116454025 Coolant Overflow Tank will hold up to one gallon of coolant. Hand cut aluminum material provides more efficient cooling properties. This tank replaces the location of your secondary battery and plastic water...
MISHIMOTO MMRAD-DMAX-01 ALUMINUM PERFORMANCE RADIATOR
$896.95
Mishimoto has released a performance aluminum radiator for the 2001-2005 Chevrolet/GMC 6.6L Duramax. Mishimoto performance radiators are manufactured from high-quality aircraft-grade aluminum with a 100% aluminum core and polished end tanks. The Mishimoto 6.6L Duramax...
MISHIMOTO MMTS-CHV-01DH HIGH TEMPERATURE THERMOSTATS
$85.95
The Mishimoto Chevrolet Duramax high temperature thermostats activate at a higher temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in colder climates, or have trouble reaching operating temperatures....
MERCHANT AUTOMOTIVE 10089 BILLET COOLANT BLOCK-OFF PLATE
$59.72
The Merchant Automotive 10089 Billet Coolant Block-Off Plate eliminates the common leaking issue in your 2001-2017 GM 6.6L Duramax. The factory coolant block-off plate has a cast design with a gasket. Over time, this plate commonly...