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5.7L / 6.1L / 6.4L Hemi Cooling Upgrades

Cooling Upgrades for 5.7L, 6.1L, and 6.4L Hemi Engines The 5.7L, 6.1L SRT8, and 6.4L 392 Hemi engines are known for their strong performance and durability, each offering a unique balance of power and reliability. Whether you’re driving a classic 5.7L Hemi, a high-performance 6.1L SRT8, or a boost-ready 6.4L 392, managing engine temperatures is crucial to maintaining peak performance and longevity. This collection features cooling upgrades designed specifically for these Gen III Hemi platforms. From high-flow radiators and performance thermostats to upgraded water pumps and auxiliary cooling components, these parts help reduce heat soak and improve coolant flow under demanding conditions. Proper cooling supports your engine’s power potential while enhancing reliability during spirited driving or track use. Key cooling upgrades for your 5.7L, 6.1L, and 6.4L Hemi include: - High-capacity radiators for improved heat dissipation - Performance water pumps for consistent coolant flow - Upgraded thermostats for optimized temperature control - Auxiliary fans and cooling accessories Shop 5.7L / 6.1L / 6.4L Hemi cooling upgrades at FastHemis.
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73 Results

Mishimoto 180 Degree Low Temp Thermostat: Chrysler / Dodge / Jeep / Ram 5.7L Hemi, 6.1L SRT8, 6.4L 392, 6.2L Hellcat 2005 - 2025
Mishimoto 180 Degree Low Temp Thermostat: Chrysler / Dodge / Jeep / Ram 5.7L Hemi, 6.1L SRT8, 6.4L 392, 6.2L Hellcat 2005 - 2025

Mishimoto Low Temp Thermostat: 5.7L Hemi & 6.1L SRT8 / 6.4L 392 2005 - 2023

Mishimoto
5.0 (8)

Regular price $71.00 $64.95 9% off

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per 

Mishimoto Aluminum Radiator: Dodge Durango / Jeep Grand Cherokee 2011 - 2023 (3.6L V6, 5.7L Hemi & 6.4L SRT)
Mishimoto Aluminum Radiator: Dodge Durango / Jeep Grand Cherokee 2011 - 2023 (3.6L V6, 5.7L Hemi & 6.4L SRT)

Mishimoto Aluminum Radiator: Dodge Durango / Jeep Grand Cherokee 2011 - 2023 (3.6L V6, 5.7L Hemi & 6.4L SRT)

Mishimoto
5.0 (1)

Regular price $841.00 $764.95 9% off

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per 

Mishimoto Silicone Radiator Hoses Kit: Jeep Grand Cherokee 5.7L Hemi 2011 - 2021
Mishimoto Silicone Radiator Hoses Kit: Jeep Grand Cherokee 5.7L Hemi 2011 - 2021

Mishimoto Silicone Radiator Hoses Kit: Jeep Grand Cherokee 5.7L Hemi 2011 - 2021

Mishimoto
5.0 (3)

Regular price $279.00 $253.95 9% off

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per 

Granatelli 180° Thermostat & Gasket: Fits HEMI 2003-2024 5.7/6.1/6.2/6.4L
Granatelli 180° Thermostat & Gasket: Fits HEMI 2003-2024 5.7/6.1/6.2/6.4L
usa

Granatelli 180° Thermostat & Gasket: Fits HEMI 2003-2024 5.7/6.1/6.2/6.4L

Granatelli Motor Sports
5.0 (1)

Regular price $52.50 $49.88 5% off

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Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 6.1L & 6.4L SRT8 / SRT / Scat Pack 2006 - 2023
Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 6.1L & 6.4L SRT8 / SRT / Scat Pack 2006 - 2023

Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 6.1L & 6.4L SRT8 / SRT / Scat Pack 2006 - 2023

Mishimoto
4.0 (1)

Regular price $909.00 $825.95 9% off

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Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2023
Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2023

Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2023

Mishimoto

Regular price $935.00 $849.95 9% off

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Mishimoto Thermal Bypass Valve Kit (FRONT): Fits Chrysler/Dodge/Jeep/Ram 2006-2019 NAG1
Mishimoto Thermal Bypass Valve Kit (FRONT): Fits Chrysler/Dodge/Jeep/Ram 2006-2019 NAG1

Mishimoto Thermal Bypass Valve Kit (FRONT): Fits Chrysler/Dodge/Jeep/Ram 2006-2019 NAG1

Mishimoto

Regular price $164.00 $148.95 9% off

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per 

Mishimoto Aluminum Coolant Reservoir Tank: 300 / Challenger / Charger 2011 - 2024
Mishimoto Aluminum Coolant Reservoir Tank: 300 / Challenger / Charger 2011 - 2024

Mishimoto Aluminum Expansion Tank Black: Fits Challenger / Charger / 300 2011-2023 3.6/5.7L

Mishimoto

Regular price $445.00 $404.95 9% off

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Mishimoto Silicone Radiator Hoses Kit: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2010
Mishimoto Silicone Radiator Hoses Kit: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2010

Mishimoto Silicone Radiator Hoses Kit: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2010

Mishimoto

Regular price from $179.95 Up to 9% off

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per 

3 colors
Mishimoto Low Temp Thermostat: 3.7L & 4.7L Dodge & Jeep
Mishimoto Low Temp Thermostat: 3.7L & 4.7L Dodge & Jeep

Mishimoto Low Temp Thermostat: 3.7L & 4.7L Dodge & Jeep

Mishimoto

Regular price $76.00 $68.95 9% off

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per 

American Car Craft Water Tank / Power Steering Cover: 300C / Charger / Magnum 5.7L Hemi & 6.1L SRT8 2005 - 2010
American Car Craft Water Tank / Power Steering Cover: 300C / Charger / Magnum 5.7L Hemi & 6.1L SRT8 2005 - 2010
usa

American Car Craft Water Tank / Power Steering Cover: 300C / Charger / Magnum 5.7L Hemi & 6.1L SRT8 2005 - 2010

American Car Craft

Regular price $288.95 $268.95 7% off

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per 

Mishimoto CNC Aluminum Heater Supply and Return Hose Fitting Set: Dodge Durango (2011-2026)
Mishimoto CNC Aluminum Heater Supply and Return Hose Fitting Set: Dodge Durango (2011-2026)

Mishimoto CNC Aluminum Heater Supply and Return Hose Fitting Set: Dodge Durango (2011-2026)

Mishimoto

Regular price $104.00 $94.95 9% off

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Granatelli 160 Degree Thermostat & Gasket: Dodge/Ram/Durango/Chrysler/Jeep 2003-2024 5.7-6.4L HEMI
Granatelli 160 Degree Thermostat & Gasket: Dodge/Ram/Durango/Chrysler/Jeep 2003-2024 5.7-6.4L HEMI
usa

Granatelli 160 Degree Thermostat & Gasket: Dodge/Ram/Durango/Chrysler/Jeep 2003-2024 5.7-6.4L HEMI

Granatelli Motor Sports

Regular price $52.50 $49.88 5% off

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per 

Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade
Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

Mishimoto

Regular price $100.00 $90.95 9% off

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per 

Mishimoto Thermal Bypass Valve Kit: Jeep Grand Cherokee (16-21) / Grand Cherokee L (21)
Mishimoto Thermal Bypass Valve Kit: Jeep Grand Cherokee (16-21) / Grand Cherokee L (21)

Mishimoto Thermal Bypass Valve Kit: Jeep Grand Cherokee (16-21) / Grand Cherokee L (21)

Mishimoto

Regular price $110.00 $99.95 9% off

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Mishimoto Aluminum Expansion Tank Black (REAR): Dodge Challenger / Charger 2015-2023 6.4L/6.2L Hellcat
Mishimoto Aluminum Expansion Tank Black (REAR): Dodge Challenger / Charger 2015-2023 6.4L/6.2L Hellcat
Mishimoto Aluminum Radiator: Dodge Challenger / Charger 6.2L SRT Hellcat 2015 - 2023
Mishimoto Aluminum Radiator: Dodge Challenger / Charger 6.2L SRT Hellcat 2015 - 2023

Mishimoto Aluminum Radiator: Dodge Challenger / Charger 6.2L SRT Hellcat 2015 - 2023

Mishimoto

Regular price $909.00 $825.95 9% off

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per 

Weapon R Aluminum Coolant Overflow Tank: Dodge Challenger 2011-2014

Weapon R Aluminum Coolant Overflow Tank: Dodge Challenger 2011 - 2014

Weapon R

Regular price $300.00 $255.00 15% off

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per 

Mishimoto Silicone Radiator Hose Kit Black (F&R): 13-14 RAM 2500/3500/4500/5500 6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Black (F&R): 13-14 RAM 2500/3500/4500/5500 6.7L Cummins

Mishimoto Silicone Radiator Hose Kit Black (F&R): 13-14 RAM 2500/3500/4500/5500 6.7L Cummins

Mishimoto

Regular price $363.00 $329.95 9% off

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per 

Mishimoto Silicone Radiator Hose Kit Red (F&R): RAM 2500 / 3500 / 4500 / 5500 6.7L Cummins 2013-2014
Mishimoto Silicone Radiator Hose Kit Red (F&R): RAM 2500 / 3500 / 4500 / 5500 6.7L Cummins 2013-2014

Mishimoto Silicone Radiator Hose Kit Red (F&R): RAM 2500 / 3500 / 4500 / 5500 6.7L Cummins 2013-2014

Mishimoto

Regular price $363.00 $329.95 9% off

Unit price
per 

Mishimoto Silicone Radiator Hose Kit Black (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Black (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins

Mishimoto Silicone Radiator Hose Kit Black (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins

Mishimoto

Regular price $363.00 $329.95 9% off

Unit price
per 

Mishimoto Silicone Radiator Hose Kit Blue (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Blue (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins

Mishimoto Silicone Radiator Hose Kit Blue (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins

Mishimoto

Regular price $363.00 $329.95 9% off

Unit price
per 

Mishimoto Silicone Radiator Hose Kit Red (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Red (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins

Mishimoto Silicone Radiator Hose Kit Red (F&R): RAM 2500/3500/4500/5500 2015-2018 6.7L Cummins

Mishimoto

Regular price $363.00 $329.95 9% off

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per 

Mishimoto Transmission Cooler Tube-Fin Core (F&R): Dodge Ram 2500/3500 1994-2002 5.9L Cummins
Mishimoto Transmission Cooler Tube-Fin Core (F&R): Dodge Ram 2500/3500 1994-2002 5.9L Cummins

Mishimoto Transmission Cooler Tube-Fin Core (F&R): Dodge Ram 2500/3500 1994-2002 5.9L Cummins

Mishimoto

Regular price $385.00 $349.95 9% off

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per 

Mishimoto Aluminum Coolant Y-Pipe (F&R): RAM 2500/3500/4500/5500 2013-2014 6.7L Cummins
Mishimoto Aluminum Coolant Y-Pipe (F&R): RAM 2500/3500/4500/5500 2013-2014 6.7L Cummins

Mishimoto Aluminum Coolant Y-Pipe (F&R): RAM 2500/3500/4500/5500 2013-2014 6.7L Cummins

Mishimoto

Regular price $71.00 $64.95 9% off

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per 

Mishimoto Silicone Radiator Hose Kit Red (F&R): Dodge / RAM 2500/3500 2010-2012 6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Red (F&R): Dodge / RAM 2500/3500 2010-2012 6.7L Cummins

Mishimoto Silicone Radiator Hose Kit Red (F&R): Dodge / RAM 2500/3500 2010-2012 6.7L Cummins

Mishimoto

Regular price $271.00 $245.95 9% off

Unit price
per 

Mishimoto Full-Flow Thermal Bypass Valve Kit: Fits Challenger / Charger / 300 2012-2021 3.6L 8HP45/845RE
Mishimoto Full-Flow Thermal Bypass Valve Kit: Fits Challenger / Charger / 300 2012-2021 3.6L 8HP45/845RE
Mishimoto Transmission Thermal Bypass Valve Kit Billet Aluminum (REAR): Fits Chrysler/Dodge 2012-2021 3.6L
Mishimoto Transmission Thermal Bypass Valve Kit Billet Aluminum (REAR): Fits Chrysler/Dodge 2012-2021 3.6L
Mishimoto Replacement Radiator Hose Kit (F&R): Dodge Ram 2500/3500/4500/5500 03-10 5.9/6.7L Cummins
Mishimoto Replacement Radiator Hose Kit (F&R): Dodge Ram 2500/3500/4500/5500 03-10 5.9/6.7L Cummins

Mishimoto Replacement Radiator Hose Kit (F&R): Dodge Ram 2500/3500/4500/5500 03-10 5.9/6.7L Cummins

Mishimoto

Regular price $194.00 $175.95 9% off

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per 

Mishimoto Transmission Cooler Thicker Core (FRONT): RAM 2500/3500 2019-2023 6.7L Cummins
Mishimoto Transmission Cooler Thicker Core (FRONT): RAM 2500/3500 2019-2023 6.7L Cummins

Mishimoto Transmission Cooler Thicker Core (FRONT): RAM 2500/3500 2019-2023 6.7L Cummins

Mishimoto

Regular price $583.00 $529.95 9% off

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per 

Mishimoto Transmission Cooler (Direct-Fit) (FRONT): Dodge/RAM 2500/3500 2010-2012 6.7L Cummins
Mishimoto Transmission Cooler (Direct-Fit) (FRONT): Dodge/RAM 2500/3500 2010-2012 6.7L Cummins

Mishimoto Transmission Cooler (Direct-Fit) (FRONT): Dodge/RAM 2500/3500 2010-2012 6.7L Cummins

Mishimoto

Regular price $629.00 $571.95 9% off

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per 

Mishimoto Radiator: Dodge Ram 1500 (03-08) / Ram 2500 (04-09) / Ram 3500 (04-08)
Mishimoto Radiator: Dodge Ram 1500 (03-08) / Ram 2500 (04-09) / Ram 3500 (04-08)

Mishimoto Radiator: Dodge Ram 1500 (03-08) / Ram 2500 (04-09) / Ram 3500 (04-08)

Mishimoto

Regular price $660.00 $599.95 9% off

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per 

Mishimoto Thermal Bypass: Ram 2500 / Ram 3500 2019-2024
Mishimoto Thermal Bypass: Ram 2500 / Ram 3500 2019-2024

Mishimoto Thermal Bypass: Ram 2500 / Ram 3500 2019-2024

Mishimoto

Regular price $225.00 $204.95 9% off

Unit price
per 

Mishimoto Silicone Radiator Hose Kit Blue (F&R): Dodge Ram 2500/3500/4500/5500 03-10 5.9/6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Blue (F&R): Dodge Ram 2500/3500/4500/5500 03-10 5.9/6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Black: Dodge Ram 2500/3500/4500/5500 2003-2010 5.9/6.7L Cummins
Mishimoto Silicone Radiator Hose Kit Black: Dodge Ram 2500/3500/4500/5500 2003-2010 5.9/6.7L Cummins

Mishimoto Silicone Radiator Hose Kit Black: Dodge Ram 2500/3500/4500/5500 2003-2010 5.9/6.7L Cummins

Mishimoto

Regular price $220.00 $199.95 9% off

Unit price
per 

CSF High-Performance Transmission Oil Cooler: Fits Most Jeep Wrangler / Gladiator Models (2018-2026)
CSF High-Performance Transmission Oil Cooler: Fits Most Jeep Wrangler / Gladiator Models (2018-2026)
Mishimoto Top Heater Hose Upgrade -10AN (REAR): Dodge / RAM 2500/3500/4500/5500 2007-2025 6.7L Cummins
Mishimoto Top Heater Hose Upgrade -10AN (REAR): Dodge / RAM 2500/3500/4500/5500 2007-2025 6.7L Cummins
Holley Replacement Water Neck Seal: Fits Most Dodge / Jeep / Ram Models (2003-2023)

Holley Replacement Water Neck Seal: Fits Most Dodge / Jeep / Ram Models (2003-2023)

Holley

Regular price $4.57 $3.65 20% off

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per 

Mishimoto Silicone Radiator Hose Kit Red (F&R): 11-23 Challenger / Charger R/T / 300C 5.7L
Mishimoto Silicone Radiator Hose Kit Red (F&R): 11-23 Challenger / Charger R/T / 300C 5.7L

Mishimoto Silicone Radiator Hose Kit Red (F&R): 11-23 Challenger / Charger R/T / 300C 5.7L

Mishimoto

Regular price $216.00 $195.95 9% off

Unit price
per 

Cooling Upgrades for 5.7L, 6.1L SRT8, and 6.4L 392 Hemi Engines

The 5.7L, 6.1L SRT8, and 6.4L 392 Hemi engines each deliver impressive power and durability, but managing heat is essential to keep them running at their best. These Gen III Hemi platforms benefit greatly from targeted cooling upgrades that enhance coolant flow and reduce heat soak during spirited driving or track use.

Why Upgrade Cooling Components on Your 5.7L, 6.1L, or 6.4L Hemi?

High-performance driving and heavy loads generate significant heat that stock cooling systems can struggle to dissipate efficiently. Upgrading cooling parts helps maintain optimal engine temperatures, preventing power loss and premature wear. This is especially important for the 6.1L SRT8 and 6.4L 392, which feature higher compression and more aggressive tuning than the 5.7L.

  • Improved heat dissipation reduces risk of overheating under stress
  • Consistent coolant flow supports stable operating temperatures
  • Enhanced cooling reliability extends engine life and performance

Key Cooling Upgrades for Gen III Hemi Engines

Effective cooling upgrades focus on increasing capacity and efficiency while ensuring compatibility with your specific Hemi platform. High-capacity radiators provide better heat exchange, while performance water pumps maintain steady coolant circulation. Upgraded thermostats optimize temperature regulation, and auxiliary fans improve airflow during low-speed or stop-and-go conditions.

Choosing the Right Cooling Upgrades for Your Hemi at FastHemis

Selecting cooling components tailored to your 5.7L, 6.1L SRT8, or 6.4L 392 Hemi ensures proper fitment and maximum benefit. Whether you’re upgrading for daily driving durability or track-focused performance, our collection offers quality radiators, water pumps, thermostats, and cooling accessories designed for these engines. Shop FastHemis to keep your Hemi running cool and strong.

SELECT YOUR VEHICLE