5.7L / 6.1L / 6.4L Hemi Cooling Upgrades
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
- Unit price
- /per
Mishimoto Silicone Radiator Hose Kit Blue (F&R): 13-14 RAM 2500/3500/4500/5500 6.7L Cummins
Mishimoto
Regular price
$363.00
$329.95
9% off
- Unit price
- /per
American Car Craft Water Tank / Power Steering Cover: Dodge Challenger R/T SRT8 2008 - 2010
American Car Craft
Regular price
$285.95
$266.95
7% off
- Unit price
- /per
American Car Craft Polished Water Tank Cover w/ Cap: Dodge Challenger 2011 - 2023 (V8 Models)
American Car Craft
Regular price from $266.95 Up to 7% off
- Unit price
- /per
Mishimoto Thermal Bypass Valve Kit: Ram 2500 / Ram 3500 2013-2018
Mishimoto
Regular price
$225.00
$204.95
9% off
- Unit price
- /per
Mishimoto Thermal Bypass Valve Kit: Ram 2500 / Ram 3500 2013-2018
Mishimoto
Regular price
$110.00
$99.95
9% off
- Unit price
- /per
Mishimoto Stock Replacement Oil Cooler: Fits Dodge Ram 2500 / 3500 (07-24)
Mishimoto
Regular price
$330.00
$299.95
9% off
- Unit price
- /per
Mishimoto Plastic Radiator: Dodge Ram 2500 (2010) / Ram 3500 (2010-12)
Mishimoto
Regular price
$353.00
$320.95
9% off
- Unit price
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Mishimoto Transmission Cooler Bypass: Ram 2500 (2010-2013) / Ram 3500 (2010-2013)
Mishimoto
Regular price
$76.00
$68.95
9% off
- Unit price
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Mishimoto Thermal Bypass: Ram 2500 / Ram 3500 2019-2024
Mishimoto
Regular price
$225.00
$204.95
9% off
- Unit price
- /per
Mishimoto Replacement Power Steering Cooler: Fits Dodge Ram (02-12)
Mishimoto
Regular price
$99.00
$89.95
9% off
- Unit price
- /per
Mishimoto Replacement Radiator: Ram 2500 / Ram 3500 2013-2018
Mishimoto
Regular price
$326.00
$295.95
9% off
- Unit price
- /per
Mishimoto Perf Transmission Cooler: Jeep Wrangler JL 2018-2025 / Gladiator JT 2020-2025
Mishimoto
Regular price
$394.00
$357.95
9% off
- Unit price
- /per
Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade
Mishimoto
Regular price
$100.00
$90.95
9% off
- Unit price
- /per
Mishimoto Thermal Bypass Valve Kit: Jeep Grand Cherokee (16-21) / Grand Cherokee L (21)
Mishimoto
Regular price
$110.00
$99.95
9% off
- Unit price
- /per
Mishimoto Thermal Bypass Valve Kit: Jeep Grand Cherokee (16-21) / Grand Cherokee L (2021)
Mishimoto
Regular price
$225.00
$204.95
9% off
- Unit price
- /per
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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.