4.7L /5.2L / 5.9L Engine Upgrades
American Racing Headers Long System HD 6-into-1 Header: Jeep Wrangler TJ 1998-2006 4.0L I6
American Racing Headers
Regular price from $1,493.89 Sale
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Ripp High Performance Coil Pack Kit with Spark Plug Wires: Jeep Wrangler TJ/LJ 1997-2006
Ripp
Regular price from $299.00 Sale
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Nitrous Express EFI Single Nozzle Nitrous Kit 35-150HP w/5lb Bottle: Fits Dodge 1992-2005
Nitrous Express
$905.00
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Yukon Gear & Axle NP241D Transfer Case Bearing Kit: Jeep Wrangler 2003-2014 3.6L/3.8L
Yukon Gear & Axle
$224.89
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Banks Power AutoMind Programmer Hand Held: Fits Dodge/Jeep 1998-2014
Banks Power
Regular price
$487.78
$439.00
Sale
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MagnaFlow HM Grade Direct Fit Catalytic Converter (DRIVER): Dodge Ram 1500 04-05 5.7L Hemi
Magnaflow
$335.00
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MagnaFlow Direct Fit Catalytic Converter OEM Grade (REAR): Jeep Grand Cherokee 02-04
Magnaflow
$298.00
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MagnaFlow OEM Grade Direct Fit Catalytic Converter (PASSENGER): Dodge Ram 1500 04-05 5.7L Hemi w/ Torca Clamp
Magnaflow
$487.00
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Magnaflow Direct Fit Catalytic Converter OEM Grade (DRIVER SIDE): Dodge Ram 1500 04-05 5.7L Hemi
Magnaflow
$352.00
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MagnaFlow Direct Fit Catalytic Converter HM Grade (REAR): Jeep Grand Cherokee 02-04
Magnaflow
$284.00
- Unit price
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American Brother Designs Custom Coolant Reservoir Cap Cover: Fits Dodge / Jeep / Ram (09-26)
American Brother Designs
$59.00
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American Brother Designs Custom Master Cylinder Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs
$69.00
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American Brother Designs Custom Washer Fluid Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs
$59.00
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American Brother Designs Custom Fuse Box Cover: Dodge Durango / Jeep Grand Cherokee / Ram (14-25)
American Brother Designs
$155.00
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American Brother Designs Custom Radiator Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs
$59.00
- Unit price
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American Brother Designs Custom Washer Fluid Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs
$59.00
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American Brother Designs Custom Power Steering Fluid Cap Cover: Fits Chrysler / Dodge (05-14)
American Brother Designs
$59.00
- Unit price
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American Brother Designs Custom Coolant Reservoir Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs
$59.00
- Unit price
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American Brother Designs Custom Washer Fluid Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs
$59.00
- Unit price
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American Brother Designs Custom Radiator Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs
$59.00
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Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Fits most Hemi Models
Pedal Commander
Regular price
$289.99
$279.99
Sale
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Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Dodge / Chrysler / Jeep (02-10)
Pedal Commander
Regular price
$289.99
$279.99
Sale
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PRW Fabricated Aluminum Valve Covers (PAIR): Chrysler / Dodge / Jeep / Ram 5.7L-6.2L Engines - Black
PRW
Regular price
$301.75
$251.46
Sale
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PRW Fabricated Polished Aluminum Valve Covers w/ Mounting Hardware: Fits most Hemi Models
PRW
Regular price
$297.43
$247.86
Sale
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PRW Fabricated Aluminum Valve Covers (PAIR): Fits Chrysler / Dodge / Jeep / Ram (02-26) - Silver
PRW
Regular price
$305.14
$254.28
Sale
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PRW Platinum Series SS Shaft-Mount Rocker Arms Kit: Fits Chrysler / Dodge / Jeep / Ram (02-26)
PRW
Regular price
$890.99
$742.49
Sale
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PRW Hi-Perf Sportsman Harmonic Damper: Fits Chrysler / Dodge / Jeep / Ram 5.7L-6.4L Hemi
PRW
Regular price
$146.52
$122.10
Sale
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PRW Steel Black Oxide Rocker Arm Adjuster Screws: Fits Chrysler / Dodge / Jeep / Ram (02-26)
PRW
Regular price
$8.47
$7.06
Sale
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K&N Performance Gold Oil Filter: Fits Most Chrysler/Dodge/Jeep (91-08)
K&N Engineering
$17.99
- Unit price
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Granatelli Motor Sports Perf Ignition Wires: Jeep Grand Cherokee 93-98 5.2L V8
Granatelli Motor Sports
Regular price
$149.94
$142.44
Sale
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Granatelli Motor Sports MPG Plus Ignition Wires: Jeep Grand Cherokee 93-98 5.2L V8
Granatelli Motor Sports
Regular price
$149.94
$142.44
Sale
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aFe SCORCHER High Performance Ignition Coil: Jeep Grand Cherokee (2000-2004) / Wrangler (2000-2006) 4.0L I6
aFe
$160.00
- Unit price
- /per
Magnaflow California Direct-Fit Catalytic Converter: Jeep Grand Cherokee 93-95
Magnaflow
$1,313.00
- Unit price
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Fel-Pro Engine Coolant Thermostat Housing Gasket: Fits Most Dodge/Jeep 4.0L/2.5L (98-06)
Fel-Pro
$20.27
- Unit price
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Fel-Pro PermaDry Molded Rubber Engine Oil Pan Gasket Set w/ SnapUps: Jeep Grand Cherokee / Wrangler 91-06 4.0L I6
Fel-Pro
$47.54
- Unit price
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Fel-Pro Engine Valve Cover Gasket Set: Jeep Grand Cherokee / Wrangler 96-06 4.0L I6
Fel-Pro
$56.00
- Unit price
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Performance and Maintenance Upgrades for 4.7L, 5.2L, and 5.9L Mopar Engines
The 4.7L, 5.2L, and 5.9L engines form the backbone of classic Mopar trucks and SUVs, prized for their durability and torque-rich character. Whether you’re working on a 5.9L Magnum 360 or its 4.7L and 5.2L siblings, these engines offer a reliable platform for daily driving and straightforward bolt-on upgrades that enhance performance and longevity.
Keeping Your 5.9L Magnum and Related Engines Running Strong
Routine maintenance is key to preserving the reliability of these legacy Mopar engines. Focus on durable ignition components, fuel system upkeep, and quality gaskets to prevent common wear issues. Proper maintenance not only extends engine life but also ensures consistent torque delivery and throttle response.
- Replace ignition wires, coils, and spark plugs regularly for optimal combustion
- Maintain fuel injectors and fuel pumps to avoid lean conditions
- Use quality seals and gaskets to prevent leaks and maintain compression
- Inspect and replace timing components as needed to avoid performance loss
Popular Performance Upgrades for 4.7L, 5.2L, and 5.9L Engines
These Mopar small blocks respond well to bolt-on upgrades that improve airflow and ignition efficiency. Common enhancements include performance intake manifolds, exhaust headers, and upgraded ignition systems designed to boost throttle response and torque without extensive engine modifications.
Choosing the Right Upgrades for Your Classic Mopar Engine
When selecting parts for your 4.7L, 5.2L, or 5.9L engine, consider your vehicle’s application and desired performance level. Whether you’re restoring a Ram truck or upgrading a Dakota or Durango, FastHemis offers a range of components tailored to maintain reliability while unlocking additional power and drivability.