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4.7L /5.2L / 5.9L Cooling Upgrades

Cooling Upgrades for 4.7L, 5.2L, and 5.9L Magnum Engines The 4.7L, 5.2L, and 5.9L Magnum V8 engines are known for their classic Mopar durability and torque, powering trucks and SUVs through decades of reliable service. These engines benefit greatly from upgraded cooling components to maintain optimal operating temperatures, especially under heavy loads or performance use. This collection offers a range of cooling upgrades tailored to these legacy Chrysler small blocks, including high-flow radiators, performance water pumps, thermostats, and cooling fans. Proper heat management helps protect your engine from overheating, extends component life, and supports consistent power delivery. Key cooling upgrades for your Magnum engine: - High-capacity radiators for improved coolant flow - Performance water pumps and thermostats - Electric and mechanical cooling fans - Radiator hoses and clamps designed for durability Keep your classic Mopar running strong with reliable cooling solutions. Shop 4.7L / 5.2L / 5.9L cooling upgrades at FastHemis.
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41 Results

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

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per 

HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee	4.7L V8 2005 - 2009
HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee	4.7L V8 2005 - 2009

HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee 4.7L V8 2005 - 2009

HPS

Regular price from $207.00 Up to 13% off

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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

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Spec D Aluminum Radiator: Jeep Grand Cherokee 4.0L w/ Automatic Transmission 1999 - 2004
Spec D Aluminum Radiator: Jeep Grand Cherokee 4.0L w/ Automatic Transmission 1999 - 2004

Spec D Aluminum Radiator: Jeep Grand Cherokee 4.0L w/ Automatic Transmission 1999 - 2004

Spec D

Regular price $274.00 $203.00 26% off

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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

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HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 2002 - 2006
HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 2002 - 2006

HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 2002 - 2006

HPS

Regular price from $252.00 Up to 13% off

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per 

3 colors
HPS Silicone Heater Hoses Kit: Jeep	Wrangler TJ 4.0L I6 2002 - 2006
HPS Silicone Heater Hoses Kit: Jeep	Wrangler TJ 4.0L I6 2002 - 2006

HPS Silicone Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 2002 - 2006

HPS

Regular price from $124.00 Up to 13% off

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per 

3 colors
HPS Silicone Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 1997 - 2001
HPS Silicone Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 1997 - 2001

HPS Silicone Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 1997 - 2001

HPS

Regular price $149.50 $130.00 13% off

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per 

3 colors
HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee	4.7L V8 2001 - 2004
HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee	4.7L V8 2001 - 2004

HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee 4.7L V8 2001 - 2004

HPS

Regular price from $152.00 Up to 13% off

Unit price
per 

3 colors
HPS Silicone Radiator & Heater Hoses Kit: Jeep Grand Cherokee	4.7L V8 2001 - 2004
HPS Silicone Radiator & Heater Hoses Kit: Jeep Grand Cherokee	4.7L V8 2001 - 2004

HPS Silicone Radiator & Heater Hoses Kit: Jeep Grand Cherokee 4.7L V8 2001 - 2004

HPS

Regular price from $270.00 Up to 13% off

Unit price
per 

3 colors
HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee	4.0L I6 1999 - 2004
HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee	4.0L I6 1999 - 2004

HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee 4.0L I6 1999 - 2004

HPS

Regular price $171.35 $149.00 13% off

Unit price
per 

3 colors

Cooling Upgrades for 4.7L, 5.2L, and 5.9L Magnum V8 Engines

The 4.7L, 5.2L, and 5.9L Magnum engines represent a cornerstone of classic Mopar durability, powering trucks and SUVs with reliable torque and longevity. Upgrading the cooling system on these legacy Chrysler small blocks is essential to maintain optimal engine temperatures, especially during heavy-duty use or performance driving.

Why Upgrade Cooling Components on Your Magnum V8?

Magnum engines are known for their robust design, but aging cooling systems can struggle to dissipate heat effectively under demanding conditions. Upgraded radiators, water pumps, and thermostats help improve coolant flow and temperature regulation, reducing the risk of overheating and protecting critical engine parts.

  • Enhanced heat dissipation for sustained heavy loads
  • Improved coolant circulation with high-flow water pumps
  • Thermostats calibrated for optimal operating temperature
  • Durable hoses and clamps to prevent leaks and failures

Key Cooling System Components for Magnum Engines

Cooling upgrades for the 4.7L, 5.2L, and 5.9L Magnum engines include a variety of parts designed to work together for maximum efficiency. High-capacity radiators increase coolant volume and flow, while electric or mechanical fans provide consistent airflow at low speeds or idle. Selecting the right combination ensures your engine stays cool in all conditions.

Maintaining Your Magnum Cooling System: Tips and Parts at FastHemis

Regular maintenance and timely upgrades keep your Magnum engine running strong and prevent costly repairs. Whether you’re restoring a classic truck or enhancing a daily driver, FastHemis offers cooling solutions tailored to these Mopar small blocks. Shop our collection of radiators, water pumps, fans, and more to keep your 4.7L, 5.2L, or 5.9L Magnum cool and reliable.

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