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2001-2004 GM 6.6L LB7 Duramax Radiators, Water Pumps, & Thermostats

Brand: Dayco Part Number: 72346
Replace your old worn out lower radiator hose in your Duramax with this Dayco Curved Radiator Hose. Part number: 72346..
$85.94
Brand: HSP Diesel Part Number: 040-HSP-xxx
Build to Order! Lead Time roughly 1 week!!The 040-HSP Or HSP Billet Thermostat Housing Kit for the 2001-2005 Chevrolet and GMC Duramax is an awesome piece of billet equipment! Why Would you need an HSP Billet Thermostat Housing Kit?Let’s start with the fact that the factory location and how ti..
$370.50
Brand: Merchant Automotive Part Number: 10548
Replace the water pump on your 2001 to 2005 Duramax Silverado or Sierra truck with this kit that includes all the gaskets and seals to do the job right!Kit Includes: Water PumpWater Pump to Engine Cover SealWater Pump to Cover Seal Bypass Pipe SealUpper Bypass Pipe SealWater Pump Outlet Ga..
$149.33
Brand: Dayco Part Number: 87770
Dayco direct fit molded heater hose inlet for 01-04 Duramax.Part number: 87770..
$7.97
Brand: Dorman Products Part Number: 626-110
This replacement HVAC heater hose assembly is engineered to match the fit and durability of the stock heater hose assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.Ideal replacement - this HVAC heater hose assembly directly replaces the or..
$52.41
Brand: DmaxStore Part Number: DMAXWATERKIT-0105
DmaxStore Complete Water Pump Replacement Kit Fits 2001-2005 Chevy / GMC  2500HD / 3500HD Part# DMAXWATERKIT-0105 This package deal gives you the absolute highest quality parts on the market today. DmaxStore has assembled this kit exclusively for our members. Get the job done righ..
$305.00
Brand: AFE Part Number: 46-52031
Oversized Tube and Fin Core:This BladeRunner Street Series Radiator features a 2-3/4" thick tube and fin core which provides greater heat dissipation and better coolant flow than the factory radiator for optimum cooling efficiency.End Tanks:The fabricated end tanks are constructed out of 1/8" alumin..
$865.00
Brand: Alliant Power Part Number: AP63562
Stock replacement water pump for 01-05 Duramax, pmp includes gasket.Part number: AP63562..
$158.33
Brand: Dayco Part Number: 72273
Replace your old worn out upper radiator hose in your Duramax with this Dayco Curved Radiator Hose. Part number: 72273..
$18.51
Brand: DmaxStore Part Number: MAX-RAD-0105
Max-Flow Arctic RadiatorFits 2001-2005 Chevy/GMC 2500/3500 HD LB7 / LLYPart# MAX-RAD-0105***** Trucks Equipped with Allison 1000 Transmissions only *****These premium quality Arctic High Flow units are simply the best choice when its time to replace your factory or aftermarket ra..
$415.00
Brand: DmaxStore Part Number: MAX-HPWP-0105
Max-Flow High Performance Water Pump Kit Fits 2001-2005 Silverado/Sierra LB7/LLY Duramax Part# MAX-HPWP-0105 The Max-Flow High Performance Water Pump kit is designed specifically for high RPM and high horsepower applications, but is also a great replacement for stock applications as well. W..
$409.00
Brand: Flex-a-Lite Part Number: 104703
This is a direct-fit, bolt-on Flex-A-Lite® S-Blade dual electric-fan system for new body style 2001-2005 Chevrolet and GMC trucks with the 6.6L Duramax diesel. Dyno tests show a gain of up to 27 horsepower and 34 lbs-ft. of torque while also improving fuel economy by replacing your stock clutch fan ..
$542.99
Brand: XDP Mfg Part Number: XD374
Don't let your 2001-2005 GM 6.6L Duramax overheat due to a broken or damaged fan, replace it with the XDP X-TRA Cool Direct-Fit Radiator Clutch Fan Blade XD374. Keeping your engine temperatures in check is crucial when it comes to longevity and efficiency. Some Duramax owners don't find out the..
$75.95
Brand: Merchant Automotive Part Number: 10549
Water pumps are common wear items not only in Duramax trucks but in all vehicles. A failing pump can cause catastrophic damage if not taken care of early. The water pump is what is responsible for keeping coolant flowing throughout your engine, keeping it cool. As your Duramax gets older, the factor..
$256.75
Brand: Alliant Power Part Number: AP63566
Replacement water pump housing for 01-05 GM LB7/ LLY 6.6L Duramax by Alliant Power.Part number: AP63566..
$86.47
Brand: DmaxStore Part Number: MAX-OCU-XXXX
Max-Flow Duramax Oil Cooler Upgrade Kit Fits 2001-2007 LB7 LLY LBZ 6.6L Duramax & 2011-2019 LML L5P 6.6L Duramax The Max-Flow Duramax Oil Cooler Upgrade kit includes an oversized oil cooler that has improved fluid dynamics to take full advantage of the cooling plates within the o..
$565.00
Brand: Dorman Products Part Number: 603-125
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.Direct replacement - this engine coolant reservoir matches the fit a..
$78.73
Brand: Dorman Products Part Number: 82597
Direct replacement coolant reservoir cap for 01-07 Duramax.Part number: 82597..
$12.75
Brand: Pacific Performance Engineering Part Number: 116454025
The PPE Coolant Overflow Tank will hold up to one gallon of coolant. Hand-cut tig welded 6061 aluminum material provides more efficient cooling properties. This tank utilizes the location of your second battery and plastic water overflow tank. Easy installation. Mounts to factory bolt locations. Use..
$269.99
Brand: Mahle Part Number: GS33752
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 and meets factory specifications.    FEATURES: OE Qua..
$18.96
Brand: CSF Radiators Part Number: 10551
CSF A/C Condenser for 01-14 DuramaxFeatures & BenefitsDirect-Fit Replacement for easy installationManufactured in ISO/TSO certified factoriesPart number: 10551..
$91.24
Brand: Dorman Products Part Number: 800-413CD
Direct fit replacement inlet hose tee connector for 01-14 GM 6.6L Duramax Silverado/ Sierra 3500 by Dorman.Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.Quality replacement - this heate..
$23.70
Brand: Dorman Products Part Number: 800-414CD
Direct fit replacement inlet hose tee connector for 01-14 GM 6.6L Duramax Silverado/ Sierra 3500 by Dorman.Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.Quality replacement - this heate..
$23.11
Brand: General Motors Part Number: 12657629
Fits: 2001-2016 GM 6.6L DuramaxReplaced your faulty element with the GM Block Heater Element. This heating element is a Genuine GM part that is a direct-fit replacement that will maintain EO fit and finish. The heating element is mounted on the passenger's side of the engine near the front of the bl..
$43.79
Brand: Dirty Hooker Diesel Part Number: 030-5001
DHD 030-5001 Billet Rear Engine Cover Coolant Block Off PlateDHD's Billet Coolant Passage Block Plate is used to stop the problematic Duramax coolant leak where the stock cast plate is installed on the rear engine cover. Use this to fix your current coolant leak or to prevent a possible future coola..
$59.95
Brand: Dirty Hooker Diesel Part Number: 500-325
A must have upgrade for your Duramax puller! This fixed fan hub will eliminate your OE viscous fan clutch and increase your intercooler efficiency. Early testing shows considerable decreases in intake air temps and coolant temps, both of which equate to more power. Testing, fitment trials and data c..
$349.00
Brand: Mishimoto Part Number: MMTS-CHV-01DH
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. Activating at a higher temperature means the thermo..
$85.95
Brand: Pacific Performance Engineering Part Number: 119020086
Now easily drain your cooling system with this painless upgrade.This quick install can be done right in your driveway and adds a service option to any vehicle that doesn't come with a factory coolant drain. Once installed, you simply unscrew the NPT plug and your coolant runs out. Reinstall the plug..
$26.99
Brand: Fleece Performance Part Number: FPE-DMAX-CBOP
Upgrade your rear engine cover and stop the coolant leaks for good!Our blocking plate is thicker than the stock plate and has an integral square cut O-ring with no gasket required. OE covers are prone to leakage over time, our billet coolant block off plate with an integral O-ring is an upgrade for ..
$55.00
Brand: Merchant Automotive Part Number: 10089
On the rear of the Duramax Diesel trucks from 2001-2018, there is a coolant block off plate. The factory plate is made from cast aluminum and features a gasket for the mating surface. This plate is prone to coolant leakage due to warpage or gasket failure over the years. Merchant Automotive has reco..
$59.72
Brand: DmaxStore Part Number: DMAX-CBOP-0118
DmaxStore Billet Coolant Block Off PlateFits 2001-2018 Silverado/Sierra 2500HD/3500HD 6.6L DuramaxPart#DMAX-CBOP-0118Replaces GM Part# 97941204The DmaxStore Billet Coolant Block Off Plate replaces the leak prone OEM coolant plate with a sturdy billet aluminum plate that has an integrated o-ring to e..
$45.95
Brand: AC Delco Part Number: 97241129
OEM AC Delco 185 Degree Thermostat for 01-09 GM 6.6L Duramax.Part number: 97241129..
$41.81
Brand: AC Delco Part Number: 97241130
OEM AC Delco 180 Degree Thermostat for 01-21 GM 6.6L Duramax.Part number: 97241130..
$36.54
Brand: Dorman Products Part Number: 800-403
Direct fit replacement heater hose inlet fitting by Dorman for 02-03 GM 3500 Silverado/ Sierra.Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.Quality replacement - this heater hose conne..
$12.44
Brand: Wehrli Custom Fabrication Part Number: WCF100155
The factory plastic GM Coolant Heater Core Firewall Fitting is a common failure point on Duramax trucks and other GM vehicles. Our made in the USA, billet aluminum direct-fit replacement is more resistant to heat and vibration. Prevent leaks with this easy to install upgrade.Replaces GM/AC Delco Par..
$37.83
Brand: Dayco Part Number: 86121
Direct fit replacement molded heater hose by Dayco for the below applications. Applications:01-05 GM 2500HD 6.6L Duramax04-05 GM 3500HD 6.6L Duramax07.5-13 Dodge Ram 2500 6.7L Cummins07.5-12 Dodge Ram 3500 6.7L Cummins08-12 Dodge Ram 4500/5500 6.7L CumminsPart number: 86121..
$14.68
Brand: DieselSite Part Number: CFIKDM
For use in all model years of the Chevy/GM Duramax application **will not work on dual alternator equipped trucks** Coolant filters are not a new idea to the diesel engine world. They come in most OEM applications for medium duty and OTR tractor trailer rigs. The idea was somehow tossed aside for..
$170.00
Brand: Dirty Hooker Diesel Part Number: 500-112
Dirty Hooker Diesel 500-112 High Performance High RPM Water Pump LB7 LLY DuramaxWith the advancements in technology and tuning, these Duramax diesels are producing more horsepower and torque than originally intended and thus the water pump suffers. We have come up with a solution to the problematic ..
$314.95
Brand: Merchant Automotive Part Number: 10428
Have a truck that does not seem to heat up? A lot of times this problem is caused by worn out thermostats.Kit Includes: Thermostat - Rear 180 Degrees Thermostat- Front 185 Degrees Upper Radiator Pipe Seal Oil Fill Tube Seal Merchant Automotive part number: 10428..
$122.02
Brand: Fleetrite Part Number: FLTAC2021130
Compressor Type DENSO Part Description COMP 10S17F PV6 4.31in 03-07 GM PICK-UP 4.3/6.6L Compressor Model 10S17F Compressor Class NEW Gauge Line 36mm Clutch Diameter 110mm Oil Type PAG 46 Oil Capacity Oz 8 Omega Oil No 41-50102 Grooves 6 Voltage 12 Compressor Mount EAR Compressor Fitting ..
$855.87
Brand: Mishimoto Part Number: MMHOSE-CHV-01D
Mishimoto silicone coolant hose kits are constructed from a combination of high-grade silicone and four layers of heat-resistant fibers to provide superior durability and increased pressure tolerance. Mishimoto is proud to release a silicone coolant hose kit specifically for the 2001-2005 6.6L Duram..
$326.95
Brand: Mishimoto Part Number: MMTS-CHV-01DL
The Mishimoto Chevrolet Duramax low temperature thermostats activate at a lower temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in warmer climates, or use their trucks under heavy load or strenuous driving conditions. Activating at a lower temperatu..
$87.95
Brand: AC Delco Part Number: MS-15010202
Cooling Fan Blade AssemblyModel: 15010202Fits 2001-2005 LB7..
$82.60
Brand: AC Delco Part Number: MS-15130067
Cooling Fan Clutch Assembly Model: 15130067 Fits 2001-2005 LB7..
$334.06
Brand: Fleetrite Part Number: FLTAC2433142
Part Description 99-06 GM TRUCK/SUV W/O REAR A/C T/F 6mm Height 17.25in Length 25.25in OEM 52487303 OEM 89018832 Vehicle Make GM Vehicle Model TRUCKS DPI # 4953 View Year Make Model Application   1999 Chevrolet Silverado 2500 V8 5.3L 323cid  1999 Chevrolet Silverado 2500 V8 5.3L 32..
$269.36
Brand: Continental Part Number: 62769
Lower radiator hose for the 01-05 GM 6.6L Duramax Diesel trucks...
$95.00
Brand: Continental Part Number: 62465
Upper radiator hose for the 01-05 GM 6.6L Duramax Diesel trucks.Continental: 62465..
$23.50
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