LML Duramax Cooling System

LML Duramax cooling system components are engineered to maintain optimal engine temperatures, prevent overheating, and ensure peak performance on 2007.5-2010 Chevy and GMC 6.6L diesel trucks. Ideal for towing, hauling, and high-performance applications, these heavy-duty parts enhance reliability, extend engine life, and keep your Duramax running efficiently—essential for diesel owners seeking durability and peace of mind.

46 Items

Duramax 06-14 Water Pump Alliant AP63563 — Duramax 06-14 Water Pump Alliant AP63563 $190.89
Fits: Duramax 2006-2014

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LML Duramax OE Replacement Radiator CSF 3584 — LML Duramax OE Replacement Radiator CSF 3584 $319.43
Fits: LML Duramax 2011-2016

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LML Duramax Aluminum Radiator Mishimoto MMRAD-DMAX-11 — LML Duramax Aluminum Radiator Mishimoto MMRAD-DMAX-11 $1,096.95
Fits: LML Duramax 2011-2016

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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

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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

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LML Duramax Silicone Upper & Lower Coolant Hose Kit PPE 119020300 — LML Duramax Silicone Upper & Lower Coolant Hose Kit PPE 119020300 $269.99
Fits: LML Duramax 2011-2016

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Duramax OE Rear Thermostat GM 97241130 — Duramax OE Rear Thermostat GM 97241130 $53.80
Fits: Duramax 2001-2018

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Duramax Front Thermostat GM 97241129 — Duramax Front Thermostat GM 97241129 $61.56
Fits: Duramax 2001-2018

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X-TRA Cool Replacement Radiator XDP XD292 — X-TRA Cool Replacement Radiator XDP XD292 $524.95
Fits: LML Duramax 2011-2016

Select Options

LML|L5P Duramax AC Condenser CSF 10724 — LML|L5P Duramax AC Condenser CSF 10724 $114.83
Fits: LML|L5P Duramax 2015-2018

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Duramax Billet Coolant Block Off Plate XDP XD344 — Duramax Billet Coolant Block Off Plate XDP XD344 $64.95
Fits: Duramax 2001-2017

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Duramax Radiator Coolant Drain Pipe XDP XD328 — Duramax Radiator Coolant Drain Pipe XDP XD328 $59.95
Fits: Duramax 2006-2019

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Duramax 01-16 Water Pump Seal Mahle K31904 — Duramax 01-16 Water Pump Seal Mahle K31904 $1.91
California Restricted

Fits: Duramax 2001-2016

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LML Duramax Coolant Reservoir Degas Sinister SD-DEGAS-LML-13 — LML Duramax Coolant Reservoir Degas Sinister SD-DEGAS-LML-13 $565.99
Fits: LML Duramax 2013-2015

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LML Duramax Rear Engine Cover Coolant Return Plug Fleece FPE-LML-CP — LML Duramax Rear Engine Cover Coolant Return Plug Fleece FPE-LML-CP $19.99
Fits: LML Duramax 2011-2016

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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

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Duramax Coolant Block-Off Plate Fleece FPE-DMAX-CBOP — Duramax Coolant Block-Off Plate Fleece FPE-DMAX-CBOP $55.00
Fits: Duramax 2001-2017

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Pre-Formed 5/8 Inch Coolant Hose With 90 Degree Ends Fleece FPE-34574-A — Pre-Formed 5/8 Inch Coolant Hose With 90 Degree Ends Fleece FPE-34574-A $24.28
Fits: Universal - Many Applications

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5/8 Inch Hose With 90 Degree Ends & 5/8 Inch T-Fitting Fleece FPE-34257-A — 5/8 Inch Hose With 90 Degree Ends & 5/8 Inch T-Fitting Fleece FPE-34257-A $28.84
Fits: Universal - Many Applications

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5/8 Inch Coolant Hose W/ 90 Degree Ends & 1 Inch T-Fitting Fleece FPE-34258-A — 5/8 Inch Coolant Hose W/ 90 Degree Ends & 1 Inch T-Fitting Fleece FPE-34258-A $32.23
Fits: Universal - Many Applications

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-10AN Male To 1.325 Inch Adapter Fitting Fleece FPE-34224-B — -10AN Male To 1.325 Inch Adapter Fitting Fleece FPE-34224-B $33.95
Fits: Universal

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Duramax 01-19 Rear 180 Degree Thermostat AcDelco 131-131 — Duramax 01-19 Rear 180 Degree Thermostat AcDelco 131-131 $44.84
Fits: Duramax 2001-2019

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Duramax Coolant Block Drain Gasket GM 94034146 — Duramax Coolant Block Drain Gasket GM 94034146 $4.45
Fits: Duramax 2001-2018

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Duramax Lower Radiator Hose Retainer GMC 15075709 — Duramax Lower Radiator Hose Retainer GMC 15075709 $17.49
Fits: Duramax 2001-2019

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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

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Duramax Lower Radiator Insulator AcDelco 89019121 — Duramax Lower Radiator Insulator AcDelco 89019121 $33.61
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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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

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LML Duramax Coolant Filtration System (w/ Wix) Sinister SD-COOLFIL-6.6-11-W — LML Duramax Coolant Filtration System (w/ Wix) Sinister SD-COOLFIL-6.6-11-W $239.99
Fits: LML Duramax 2011-2015

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LML Duramax Silicone Coolant Hose Kit Mishimoto MMHOSE-DMAX-11 — LML Duramax Silicone Coolant Hose Kit Mishimoto MMHOSE-DMAX-11 $447.95
Fits: LML Duramax 2011-2016

Select Options

GM 12637105 Water Pump (With Housing) — GM 12637105 Water Pump (With Housing) $405.33
Fits: LBZ | LMM | LML Duramax 2006-2016

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Dayco DP1226 Water Pump — Dayco DP1226 Water Pump $151.24
Fits: LBZ|LMM|LML Duramax

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Alliant AP63508 Water Pump Housing — Alliant AP63508 Water Pump Housing $82.45
Fits: LBZ|LMM|LML Duramax

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Dayco DP1226B Water Pump (With Housing) — Dayco DP1226B Water Pump (With Housing) $147.36
Fits: LBZ|LMM|LML Duramax

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Dayco 72554 Curved Radiator Hose - Upper — Dayco 72554 Curved Radiator Hose - Upper $39.37
Fits: LML Duramax

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PPE 119020009 Stainless Steel Heater Hose Connector — PPE 119020009 Stainless Steel Heater Hose Connector $19.79
Fits: Duramax 2001-2016

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Black Coolant Block-Off Plate PPE 119000820 — Black Coolant Block-Off Plate PPE 119000820 $53.99
Fits: Duramax 2001-2024

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PPE 119021007 Performance Silicone Coolant Hose (EGR To Cab) — PPE 119021007 Performance Silicone Coolant Hose (EGR To Cab) $12.14
Fits: Duramax 2001-2016

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PPE 119100100 Fan Clutch Delete Nut — PPE 119100100 Fan Clutch Delete Nut $35.99
Fits: Duramax 2001-2022

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Cold Case GMT576A Aluminum Performace Radiator — Cold Case GMT576A Aluminum Performace Radiator $675.22
Fits: LML Duramax 2011-2016

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PPE 119020011 Performance Silicone Coolant Hose (Engine To Cab) — PPE 119020011 Performance Silicone Coolant Hose (Engine To Cab) $10.79
Fits: LML Duramax 2011-2014

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PPE 119021011 Performance Silicone Coolant Hose (EGR To Cab) — PPE 119021011 Performance Silicone Coolant Hose (EGR To Cab) $11.65
Fits: LML Duramax 2011-2014

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Dayco 87774 Molded Heater Hose - Heater Outlet — Dayco 87774 Molded Heater Hose - Heater Outlet $34.09
Fits: LML Duramax 2011-2014

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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

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LML Duramax Transmission Cooler Line Set Fleece FPE-TL-LML-1114 — LML Duramax Transmission Cooler Line Set Fleece FPE-TL-LML-1114 $329.99
Fits: LML Duramax 2011-2014

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Fleece FPE-TL-LML-1516 Transmission Cooler Line Set — Fleece FPE-TL-LML-1516 Transmission Cooler Line Set $329.99
Fits: LML Duramax 2015-2016

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LML Duramax Engine Oil Cooler GM 12732979 — LML Duramax Engine Oil Cooler GM 12732979 $648.27
Fits: LML Duramax 2011-2016

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