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    LB7 Duramax Cooling System


    Coolant and Additives
    Coolant and Additives
    LB7 Duramax Hoses - Pipes - Connectors
    LB7 Duramax Hoses - Pipes - Connectors
    Keep your 2001–2004 LB7 Duramax running cool and reliable with premium cooling system parts. From radiators and water pumps to thermostats and hoses, these components help prevent overheating and maintain optimal engine temperature for your 6.6L Duramax diesel. Upgrade or replace cooling parts for improved durability and performance.

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    LB7|LLY Duramax Aluminum Radiator Mishimoto MMRAD-DMAX-01
    LB7|LLY Duramax Aluminum Radiator Mishimoto MMRAD-DMAX-01 $998.95
    Fits: LB7|LLY Duramax 2001-2006
    Duramax 2001-2005 X-TRA Cool Replacement Radiator XDP XD295
    Duramax 2001-2005 X-TRA Cool Replacement Radiator XDP XD295 $355.95
    Fits: Duramax 2001-2005
    LB7|LLY Duramax Street Series Radiator AFE 46-52031
    LB7|LLY Duramax Street Series Radiator AFE 46-52031 $885.35
    California Restricted
    Fits: LB7|LLY Duramax 2001-2005
    LB7|LLY Duramax Aluminum Performance Radiator Cold Case GMT574A
    LB7|LLY Duramax Aluminum Performance Radiator Cold Case GMT574A $628.22
    Fits: LB7|LLY Duramax 2001-2005
    Duramax 01-16 High Temperature Thermostats Mishimoto MMTS-CHV-01DH
    Duramax 01-16 High Temperature Thermostats Mishimoto MMTS-CHV-01DH $99.95
    Fits: Duramax 2001-2016
    Duramax 01-16 Low Temperature Thermostats Mishimoto MMTS-CHV-01DL
    Duramax 01-16 Low Temperature Thermostats Mishimoto MMTS-CHV-01DL $101.95
    Fits: Duramax 2001-2016
    Duramax OE Rear Thermostat GM 97241130
    Duramax OE Rear Thermostat GM 97241130 $53.80
    Fits: Duramax 2001-2018
    Duramax Front Thermostat GM 97241129
    Duramax Front Thermostat GM 97241129 $61.56
    Fits: Duramax 2001-2018
    LB7|LLY Duramax Replacement Water Pump Alliant AP63562
    LB7|LLY Duramax Replacement Water Pump Alliant AP63562 $142.12
    Fits: LB7|LLY Duramax 2001-2005
    LB7|LLY Duramax Water Pump Bostech WP01100
    LB7|LLY Duramax Water Pump Bostech WP01100 $109.95
    Fits: LB7|LLY Duramax 2001-2005
    Alliant AP63566 Water Pump Housing
    Alliant AP63566 Water Pump Housing $77.61
    Fits: LB7|LLY Duramax 2001-2005
    Duramax 2001-2007 Coolant Overflow Tank PPE 116454025
    Duramax 2001-2007 Coolant Overflow Tank PPE 116454025 $269.99
    Fits: Duramax 2001-2007
    Mishimoto MMRT-DMAX-01N Aluminum Degas Tank
    Mishimoto MMRT-DMAX-01N Aluminum Degas Tank $471.95
    Fits: LB7|LLY|LBZ Duramax 2001-2007
    Mishimoto MMRT-DMAX-01MWBK Wrinkle Black Aluminum Degas Tank
    Mishimoto MMRT-DMAX-01MWBK Wrinkle Black Aluminum Degas Tank $471.95
    Fits: LB7|LLY|LBZ Duramax 2001-2007
    Duramax 01-16 Coolant Filtration System DieselSite CFIKDM
    Duramax 01-16 Coolant Filtration System DieselSite CFIKDM $170.00
    Fits: LB7 | LLY | LBZ | LMM | LML Duramax 2001-2016
    Duramax 2001-2010 Coolant Filtration System Sinister Diesel SD-COOLFIL-6-6-01-W
    Duramax 2001-2010 Coolant Filtration System Sinister Diesel SD-COOLFIL-6-6-01-W $219.99
    Fits: Duramax 2001-2010
    Duramax OE Engine Oil Cooler GM 19210615
    Sold Out
    Duramax OE Engine Oil Cooler GM 19210615 $770.65
    Fits: Duramax 2001-2010 & Duramax Express/Savana Van 2006-2010
    Duramax 2001-2010 Water Pump Gasket Kit Mahle GS33752
    Duramax 2001-2010 Water Pump Gasket Kit Mahle GS33752 $22.00
    California Restricted
    Fits: Duramax 2001-2010
    Duramax 01-16 Water Pump Seal Mahle K31904
    Duramax 01-16 Water Pump Seal Mahle K31904 $1.87
    California Restricted
    Fits: Duramax 2001-2016
    LB7|LLY Duramax Water Pump Gasket Kit Mahle C32062
    LB7|LLY Duramax Water Pump Gasket Kit Mahle C32062 $5.79
    California Restricted
    Fits: LB7|LLY Duramax 2001-2005
    Duramax Water Pump Pipe To Oil Cooler Seal GM 94011702
    Duramax Water Pump Pipe To Oil Cooler Seal GM 94011702 $32.03
    Fits: Duramax 2001-2019
    Duramax Coolant Block Drain Gasket GM 94034146
    Duramax Coolant Block Drain Gasket GM 94034146 $4.45
    Fits: Duramax 2001-2018
    Duramax 01-22 Water Pump Stud AcDelco 11611145
    Duramax 01-22 Water Pump Stud AcDelco 11611145 $7.21
    Fits: 2500HD/3500 Silverado | Sierra 2001-2022
    LB7|LLY Duramax Radiator Clutch Fan Blade XDP XD374
    LB7|LLY Duramax Radiator Clutch Fan Blade XDP XD374 $75.95
    Fits: LB7|LLY 01-05 & Express|Savana Vans 06-08
    Duramax Coolant Block-Off Plate Fleece FPE-DMAX-CBOP
    Duramax Coolant Block-Off Plate Fleece FPE-DMAX-CBOP $55.00
    Fits: Duramax 2001-2017
    Duramax Billet Coolant Block Off Plate XDP XD344
    Duramax Billet Coolant Block Off Plate XDP XD344 $64.95
    Fits: Duramax 2001-2017
    Black Coolant Block-Off Plate PPE 119000820
    Black Coolant Block-Off Plate PPE 119000820 $53.99
    Fits: Duramax 2001-2024
    PPE 119100100 Fan Clutch Delete Nut
    PPE 119100100 Fan Clutch Delete Nut $35.99
    Fits: Duramax 2001-2022
    Cold Case RC100 Polished Billet Radiator Cap Cover
    Cold Case RC100 Polished Billet Radiator Cap Cover $23.22
    Fits: Press Fit Cover For Cold Case Radiator Caps