Free shipping on orders over $250

Your cart

Your cart is empty

2.0L I4 / 3.0L EcoDiesel / 3.8L V6 Cooling Upgrades

Cooling Upgrades for 2.0L I4, 3.0L EcoDiesel, and 3.8L V6 Engines The 2.0L inline-4, 3.0L EcoDiesel inline-6, and 3.8L V6 engines each have unique cooling demands driven by their design and performance characteristics. Whether you’re managing the efficient combustion of the 2.0L I4, the torque-focused EcoDiesel turbocharged diesel, or the versatile 3.8L V6, maintaining optimal operating temperatures is essential for durability and consistent performance. This collection offers a range of cooling upgrades tailored to these engines, including high-flow radiators, upgraded thermostats, performance water pumps, and enhanced cooling fans. These components help reduce heat soak, improve coolant circulation, and support your engine’s reliability under load or extended driving conditions. Key cooling upgrade benefits include: - Improved heat dissipation for diesel and gasoline engines - Enhanced coolant flow and temperature regulation - Increased reliability for towing and daily driving - Better performance under heavy load or high ambient temperatures Shop 2.0L I4, 3.0L EcoDiesel, and 3.8L V6 cooling upgrades at FastHemis.
SELECT YOUR VEHICLE

58 Results

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

Unit price
per 

Mishimoto Aluminum Radiator: Dodge Neon SRT-4 2003 - 2005
Mishimoto Aluminum Radiator: Dodge Neon SRT-4 2003 - 2005

Mishimoto Aluminum Radiator: Dodge Neon SRT-4 2003 - 2005

Mishimoto

Regular price $330.00 $299.95 9% off

Unit price
per 

Killerglass Upper Radiator Hose Kit: Jeep Grand Cherokee 2005 - 2024 (V8 Only)
usa

Killerglass Upper Radiator Hose Kit: Jeep Grand Cherokee 2005 - 2023 (V8 Only)

KillerGlass
5.0 (1)

Regular price from $169.00 15% off

Unit price
per 

Mishimoto 12-18 Jeep Wrangler JK 90 Degree Thermostat with Housing
Mishimoto 12-18 Jeep Wrangler JK 90 Degree Thermostat with Housing

Mishimoto 90 Degree Thermostat w/ Aluminum Housing: Jeep Wrangler (07-18)

Mishimoto

Regular price $99.00 $89.95 9% off

Unit price
per 

HPS Silicone Radiator Hose Kit: Dodge Neon SRT4 2003 - 2005
HPS Silicone Radiator Hose Kit: Dodge Neon SRT4 2003 - 2005

HPS Silicone Radiator Hose Kit: Dodge Neon SRT4 2003 - 2005

HPS

Regular price from $162.00 Up to 13% off

Unit price
per 

3 colors
Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit
Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit

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

Mishimoto

Regular price $164.00 $148.95 9% off

Unit price
per 

PPE Ribbed Flexible Coupler: Ram EcoDiesel (20-23)
PPE Ribbed Flexible Coupler: Ram EcoDiesel (20-23)
usa
PPE Dual Fueler Coolant Hose: Dodge Ram (03-12)
PPE Dual Fueler Coolant Hose: Dodge Ram (03-12)
usa
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 $4.46 $2.18 51% off

Unit price
per 

HPS Silicone Radiator Hoses Kit: Jeep Wrangler TJ 2.5L I4 1997 - 2002
HPS Silicone Radiator Hoses Kit: Jeep Wrangler TJ 2.5L I4 1997 - 2002

HPS Silicone Radiator Hoses Kit: Jeep Wrangler TJ 2.5L I4 1997 - 2002

HPS

Regular price from $191.00 Up to 13% off

Unit price
per 

3 colors
HPS Silicone Heater Hoses Kit: Jeep	Wrangler 2.5L I4 1997 - 2002
HPS Silicone Heater Hoses Kit: Jeep	Wrangler 2.5L I4 1997 - 2002

HPS Silicone Heater Hoses Kit: Jeep Wrangler 2.5L I4 1997 - 2002

HPS

Regular price from $132.00 Up to 13% off

Unit price
per 

3 colors
HPS Silicone Heater Hoses Kit: Jeep Wrangler JK 3.8L V6 2007 - 2011
HPS Silicone Heater Hoses Kit: Jeep Wrangler JK 3.8L V6 2007 - 2011

HPS Silicone Heater Hoses Kit: Jeep Wrangler JK 3.8L V6 2007 - 2011

HPS

Regular price $149.50 $130.00 13% off

Unit price
per 

3 colors
HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler JK 3.8L V6	2007 - 2011
HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler JK 3.8L V6	2007 - 2011

HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler JK 3.8L V6 2007 - 2011

HPS

Regular price $294.40 $256.00 13% off

Unit price
per 

3 colors
HPS Silicone Radiator Hoses Kit: Jeep Wrangler JK 3.8L V6 2007 - 2011
HPS Silicone Radiator Hoses Kit: Jeep Wrangler JK 3.8L V6 2007 - 2011

HPS Silicone Radiator Hoses Kit: Jeep Wrangler JK 3.8L V6 2007 - 2011

HPS

Regular price from $169.00 Up to 13% off

Unit price
per 

3 colors

Cooling Upgrades for 2.0L I4, 3.0L EcoDiesel, and 3.8L V6 Engines

The 2.0L inline-4, 3.0L EcoDiesel inline-6, and 3.8L V6 engines each have distinct cooling requirements shaped by their design and operating conditions. Whether managing the efficient combustion of the gasoline 2.0L I4, the torque-heavy turbocharged EcoDiesel, or the versatile 3.8L V6, maintaining optimal engine temperatures is critical for durability and consistent performance.

Why are cooling upgrades important for these engine platforms?

Each engine platform faces unique thermal challenges. The 2.0L I4 relies on efficient heat dissipation to support fuel economy and emissions, while the 3.0L EcoDiesel’s turbocharged design generates significant heat under load. The 3.8L V6 balances power and smooth operation but still benefits from enhanced cooling to prevent heat soak and maintain performance.

  • Improved heat management reduces risk of overheating and engine wear
  • Enhanced coolant flow supports consistent operating temperatures under varied driving conditions
  • Upgraded components extend engine life and reliability, especially during towing or heavy use

What types of cooling upgrades are best suited for these engines?

Cooling upgrades for these engines focus on increasing coolant flow and heat dissipation. High-flow radiators provide greater surface area and improved airflow, while performance water pumps ensure efficient coolant circulation. Upgraded thermostats and enhanced cooling fans help maintain stable temperatures, especially in demanding environments.

How to select the right cooling upgrades for your 2.0L I4, 3.0L EcoDiesel, or 3.8L V6

Choosing the right cooling components depends on your engine’s specific needs and driving conditions. Consider your typical load, ambient temperatures, and whether you tow or drive aggressively. FastHemis offers a curated selection of cooling upgrades designed to fit each engine platform precisely, helping you maintain optimal performance and reliability.

SELECT YOUR VEHICLE