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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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120 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 (7)

Regular price $71.00 $64.95 9% off

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per 

Mishimoto Aluminum Radiator: Dodge Durango / Jeep Grand Cherokee 2011 - 2025 (3.6L V6, 5.7L Hemi & 6.4L SRT)
Mishimoto Aluminum Radiator: Dodge Durango / Jeep Grand Cherokee 2011 - 2025 (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: Dodge Durango 5.7L Hemi 2011 - 2025
Mishimoto Silicone Radiator Hoses Kit: Dodge Durango 5.7L Hemi 2011 - 2025

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

Mishimoto
5.0 (3)

Regular price from $253.95 Up to 29% off

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per 

Killerglass Upper Radiator Hose Kit: Dodge Charger 2006 - 2023 (All Models)
Killerglass Upper Radiator Hose Kit: Dodge Charger 2006 - 2023 (All Models)
usa

Killerglass Upper Radiator Hose Kit: Dodge Charger 2006 - 2023 (All Models)

KillerGlass

Regular price from $169.00 15% off

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per 

Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 6.1L & 6.4L SRT8 / SRT / Scat Pack 2006 - 2024
Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 6.1L & 6.4L SRT8 / SRT / Scat Pack 2006 - 2024

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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per 

HPS Silicone Radiator & Heater Hoses Kit: 300 / Challenger / Charger 6.4L 392 2015 - 2023
HPS Silicone Radiator & Heater Hoses Kit: 300 / Challenger / Charger 6.4L 392 2015 - 2023

HPS Silicone Radiator Hose Kit: Dodge Challenger / Charger 6.4L 392 2015 - 2023

HPS

Regular price from $390.00 Up to 13% off

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per 

3 colors
HPS Silicone Heater Hose Kit: Jeep Grand Cherokee 2005 - 2010 (5.7L Hemi & 6.1L SRT8)
HPS Silicone Heater Hose Kit: Jeep Grand Cherokee 2005 - 2010 (5.7L Hemi & 6.1L SRT8)

HPS Silicone Heater Hose Kit: Jeep Grand Cherokee 6.1L SRT8 2006 - 2010

HPS

Regular price from $149.00 Up to 13% off

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per 

3 colors
HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.1L SRT8 2006 - 2008
HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.1L SRT8 2006 - 2008

HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.1L SRT8 2006 - 2010

HPS

Regular price $284.05 $247.00 13% off

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per 

3 colors
HPS Silicone Radiator Hose Kit: Dodge Ram 5.7L Hemi 2010 (1500 / 2500) / 5.7L Hemi 2011 - 2018 (1500 / 2500)
HPS Silicone Radiator Hose Kit: Dodge Ram 5.7L Hemi 2010 (1500 / 2500) / 5.7L Hemi 2011 - 2018 (1500 / 2500)

HPS Silicone Radiator Hose Kit: Dodge Ram 5.7L Hemi 2010 - 2018 (1500 / 2500)

HPS
5.0 (1)

Regular price from $270.00 Up to 13% off

Unit price
per 

3 colors
Mishimoto Silicone Radiator Hoses Kit: 300 / Challenger / Charger 6.4L 392 2011 - 2024
Mishimoto Silicone Radiator Hoses Kit: 300 / Challenger / Charger 6.4L 392 2011 - 2024

Mishimoto Silicone Radiator Hoses Kit: 300 / Challenger / Charger 6.4L 392 2011 - 2023

Mishimoto

Regular price from $209.95 Up to 9% off

Unit price
per 

3 colors
Killerglass Upper Radiator Hose Kit: Dodge Challenger 2008 - 2023 (All Models)
Killerglass Upper Radiator Hose Kit: Dodge Challenger 2008 - 2023 (All Models)
usa

Killerglass Upper Radiator Hose Kit: Dodge Challenger 2008 - 2023 (All Models)

KillerGlass

Regular price from $169.00 15% off

Unit price
per 

HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021
HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021

HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021

HPS
5.0 (1)

Regular price from $219.00 Up to 13% off

Unit price
per 

3 colors
Killerglass Upper Radiator Hose Kit: Dodge Durango 2011 - 2025 (All Models)
usa

Killerglass Upper Radiator Hose Kit: Dodge Durango 2011 - 2023 (5.7L Hemi & 6.4L SRT)

KillerGlass

Regular price from $169.00 15% off

Unit price
per 

Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2024
Mishimoto Aluminum Radiator: 300 / Challenger / Charger / Magnum 5.7L Hemi 2005 - 2024

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

Mishimoto

Regular price $935.00 $849.95 9% off

Unit price
per 

Killerglass Upper Radiator Hose Kit: Chrysler 300 / 300C 2005 - 2024 (All Models)
Killerglass Upper Radiator Hose Kit: Chrysler 300 / 300C 2005 - 2024 (All Models)
usa

Killerglass Upper Radiator Hose Kit: Chrysler 300 / 300C 2005 - 2023 (All Models)

KillerGlass
5.0 (1)

Regular price from $169.00 15% off

Unit price
per 

HPS Silicone Heater Hose Kit: Dodge Durango 6.4L SRT 2018 - 2025
HPS Silicone Heater Hose Kit: Dodge Durango 6.4L SRT 2018 - 2025

HPS Silicone Heater Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021

HPS
5.0 (1)

Regular price from $102.00 Up to 13% off

Unit price
per 

3 colors

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.

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