5.7L / 6.1L / 6.4L Hemi Cooling Upgrades
Mishimoto Performance Aluminum Radiator: Jeep Wrangler 2018-2023
Mishimoto
Regular price
$880.00
$799.95
9% off
- Unit price
- /per
Mishimoto Replacement Radiator: Jeep Gladiator (20-24) / Wrangler JL / Wrangler JK 2018-2024
Mishimoto
Regular price
$197.00
$178.95
9% off
- Unit price
- /per
Fleece Performance Coolant Bypass Kit (03-05 AUTO TRANS): Dodge Ram 2500 / Ram 3500 2004-2005
Fleece Performance
$359.00
- Unit price
- /per
Fleece Performance Coolant Bypass Kit (06-07 AUTO TRANS): Dodge Ram 2500 / Ram 3500 2006-2007
Fleece Performance
$359.00
- Unit price
- /per
Fleece Performance Coolant Bypass Kit (MANUAL TRANS): Dodge Ram 2500 / Ram 3500 2004-2007
Fleece Performance
$359.00
- Unit price
- /per
Fleece Performance Coolant Bypass Kit: Dodge Ram 2500 / Ram 3500 1998-2002
Fleece Performance
$359.00
- Unit price
- /per
Mishimoto Transmission Cooler Stacked-Plate Core (F&R): Dodge Ram 2500/3500 2003-2009 5.9L/6.7L Cummins
Mishimoto
Regular price
$660.00
$599.95
9% off
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Mishimoto Radiator: Dodge Ram 1500 (03-08) / Ram 2500 (04-09) / Ram 3500 (04-08)
Mishimoto
Regular price
$660.00
$599.95
9% off
- Unit price
- /per
Mishimoto Replacement Radiator: Dodge Ram 2500 / Ram 3500 2003 - 2009
Mishimoto
Regular price
$370.00
$335.95
9% off
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Mishimoto Performance Aluminum Radiator: Multiple Fitments
Mishimoto
Regular price
$1,127.00
$1,024.95
9% off
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Mishimoto Performance Aluminum Radiator: Dodge Ram 2500 / Ram 3500 2003 - 2009
Mishimoto
Regular price
$1,056.00
$959.95
9% off
- Unit price
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Mishimoto Aluminum Radiator: Dodge Ram 2500 / Ram 3500 1994 - 2002
Mishimoto
Regular price
$990.00
$899.95
9% off
- Unit price
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Mishimoto Aluminum Radiator: Dodge Ram 3500 (09-10) / Ram 2500 (10)
Mishimoto
Regular price
$1,100.00
$999.95
9% off
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Mishimoto Transmission Cooler: Ram 6.7L Cummins (2013-2014)
Mishimoto
Regular price
$605.00
$549.95
9% off
- Unit price
- /per
Mishimoto Transmission Cooler: Ram 6.7L Cummins (15-18)
Mishimoto
Regular price
$616.00
$559.95
9% off
- Unit price
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Mishimoto Aluminum Degas Tank: Ram 6.7L Cummins (13-18) Natural
Mishimoto
Regular price
$593.00
$538.95
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.