4.7L /5.2L / 5.9L Cooling Upgrades
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
HPS Silicone Radiator Hoses Kit: Dodge Ram 4.7L V8 2009 - 2013
HPS
Regular price
$188.60
$164.00
13% off
- Unit price
- /per
3 colors
HPS Silicone Radiator Hoses Kit: Jeep Grand Cherokee 4.7L V8 2005 - 2009
HPS
Regular price from $207.00 Up to 13% off
- Unit price
- /per
3 colors
Mishimoto Low Temp Thermostat: 3.7L & 4.7L Dodge & Jeep
Mishimoto
Regular price
$76.00
$68.95
9% off
- Unit price
- /per
Spec D Aluminum Radiator: Jeep Grand Cherokee 4.0L w/ Automatic Transmission 1999 - 2004
Spec D
Regular price
$274.00
$203.00
26% off
- Unit price
- /per
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
Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade
Mishimoto
Regular price
$100.00
$90.95
9% off
- Unit price
- /per
Mishimoto Low Temp Thermostat: Dodge Neon SRT-4 2003 - 2005
Mishimoto
Regular price
$76.00
$68.95
9% off
- Unit price
- /per
Mishimoto Silicone Radiator Hose Kit Black (F&R): Jeep Wrangler TJ 1997-2002 2.5L
Mishimoto
Regular price
$147.00
$133.95
9% off
- Unit price
- /per
Mishimoto Transmission Cooler Tube-Fin Core (F&R): Dodge Ram 2500/3500 1994-2002 5.9L Cummins
Mishimoto
Regular price
$385.00
$349.95
9% off
- Unit price
- /per
Mishimoto Silicone Radiator Hose Kit Black: Dodge Ram 1500 2004-2008 5.7L HEMI
Mishimoto
Regular price
$198.00
$179.95
9% off
- Unit price
- /per
Mishimoto Silicone Radiator Hose Kit Red (F&R): Dodge Ram 1500 2004-2008 5.7L HEMI
Mishimoto
Regular price
$198.00
$179.95
9% off
- Unit price
- /per
Mishimoto Perf Fan Shroud Kit w/ Controller (F&R): Jeep Wrangler YJ/TJ 1987-2006 2.5/4.0L
Mishimoto
Regular price
$509.00
$462.95
9% off
- Unit price
- /per
Mishimoto Perf Fan Shroud Kit 16in Electric (F&R): Jeep Wrangler YJ/TJ 1987-2006 2.5/4.0L
Mishimoto
Regular price
$412.00
$374.95
9% off
- Unit price
- /per
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 Silicone Radiator Hose Kit Red (F&R): Jeep Wrangler TJ 1997-2006 4.0L
Mishimoto
Regular price
$151.00
$136.95
9% off
- Unit price
- /per
Holley Replacement Water Neck Seal: Fits Most Dodge / Jeep / Ram Models (2003-2023)
Holley
Regular price
$4.57
$3.65
20% off
- Unit price
- /per
Holley Aluminum Swivel Water Neck 45 Degree: Fits Most Dodge / Jeep Models (1966-2006) - Black
Holley
Regular price
$102.95
$81.95
20% off
- Unit price
- /per
Holley Aluminum Swivel Water Neck 90 Degree: Fits Most Dodge / Jeep Models (1966-2006) - Black
Holley
Regular price
$94.95
$75.38
21% off
- Unit price
- /per
HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 2002 - 2006
HPS
Regular price from $252.00 Up to 13% off
- Unit price
- /per
3 colors
HPS Silicone Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 2002 - 2006
HPS
Regular price from $124.00 Up to 13% off
- Unit price
- /per
3 colors
HPS Silicone Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 1997 - 2001
HPS
Regular price
$149.50
$130.00
13% off
- Unit price
- /per
3 colors
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 Hoses Kit: Jeep Grand Cherokee 4.0L I6 1999 - 2004
HPS
Regular price
$171.35
$149.00
13% off
- Unit price
- /per
3 colors
HPS Silicone Radiator Hoses Kit: Jeep Wrangler TJ 4.0L I6 2000 - 2006
HPS
Regular price from $155.00 Up to 13% off
- Unit price
- /per
3 colors
HPS Silicone Radiator & Heater Hoses Kit: Jeep Wrangler TJ 4.0L I6 2000 - 2001
HPS
Regular price from $241.00 Up to 13% off
- Unit price
- /per
3 colors
HPS Silicone Radiator & Heater Hoses Kit: Jeep Grand Cherokee 4.0L I6 1993 - 1998
HPS
Regular price from $209.00 Up to 13% off
- Unit price
- /per
3 colors
HPS Silicone Radiator Hoses Kit: Dodge Ram 4.7L V8 2002 - 2008
HPS
Regular price
$197.80
$172.00
13% off
- Unit price
- /per
3 colors
HPS Silicone Heater Hoses Kit: Jeep Grand Cherokee 4.7L V8 2001 - 2004
HPS
Regular price
$175.95
$153.00
13% off
- Unit price
- /per
3 colors
Gates OE Exact Thermostat: Fits Most Dodge / Chrysler / Jeep / Ram Models (2003-2017)
Gates
$68.07
- Unit price
- /per
Mishimoto Silicone Radiator Hose Kit Black (F&R): Jeep Wrangler TJ 1997-2006 4.0L
Mishimoto
Regular price
$151.00
$136.95
9% off
- Unit price
- /per
Mishimoto Aluminum Performance Radiator: Jeep Wrangler 1987-2016
Mishimoto
Regular price
$543.00
$493.95
9% off
- Unit price
- /per
Mishimoto Aluminum Performance Radiator: Jeep Wrangler 1987-2006
Mishimoto
Regular price
$495.00
$449.95
9% off
- Unit price
- /per
Mishimoto Silicone Radiator Hose Kit Olive Drab: Jeep Wrangler TJ 1997-2006 4.0L
Mishimoto
Regular price
$159.00
$144.95
9% off
- Unit price
- /per
Fleece Performance Coolant Bypass Kit: Dodge Ram 2500 / Ram 3500 1994-1998
Fleece Performance
$379.00
- Unit price
- /per
Fleece Performance Coolant Bypass Kit: Dodge Ram 2500 / Ram 3500 1998-2002
Fleece Performance
$379.00
- Unit price
- /per
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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.