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4.7L /5.2L / 5.9L Engine Upgrades

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510 Results

American Racing Headers Long System HD 6-into-1 Header: Jeep Wrangler TJ 1998-2006 4.0L I6
Joe Approved
usa

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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per 

Ripp High Performance Coil Pack Kit with Spark Plug Wires: Jeep Wrangler TJ/LJ 1997-2006
Ripp High Performance Coil Pack Kit with Spark Plug Wires: Jeep Wrangler TJ/LJ 1997-2006
Joe Approved
MagnaFlow BRE Exhaust Kit: Jeep Grand Cherokee 1999-2004 4.7L
MagnaFlow BRE Exhaust Kit: Jeep Grand Cherokee 1999-2004 4.7L
Joe Approved
usa

MagnaFlow BRE Exhaust Kit: Jeep Grand Cherokee 03-04

Magnaflow

$253.00

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per 

Banks Power AutoMind Programmer Hand Held: Fits Dodge/Jeep 1998-2014
usa

Banks Power AutoMind Programmer Hand Held: Fits Dodge/Jeep 1998-2014

Banks Power

Regular price $487.78 $439.00 Sale

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per 

Magnaflow Universal Catalytic Converter 2.25in In/Out 3in Body
Magnaflow Universal Catalytic Converter 2.25in In/Out 3in Body
usa
American Brother Designs Custom Coolant Reservoir Cap Cover: Fits Dodge / Jeep / Ram (09-26)
American Brother Designs Custom Coolant Reservoir Cap Cover: Fits Dodge / Jeep / Ram (09-26)
cbp
usa
American Brother Designs Custom Radiator Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
cbp
usa
Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Fits most Hemi Models
Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Fits most Hemi Models

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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per 

Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Dodge / Chrysler / Jeep (02-10)
Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Dodge / Chrysler / Jeep (02-10)

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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per 

PRW Fabricated Aluminum Valve Covers (PAIR): Fits Most Hemi Models
usa
PRW Fabricated Polished Aluminum Valve Covers w/ Mounting Hardware: Fits Most Hemi Models
usa
PRW Fabricated Aluminum Valve Covers (PAIR): Fits Most Chrysler / Dodge / Jeep / Ram 5.7L-6.4L HEMI Engines - Silver
usa
PRW Platinum Series Stainless Steel Shaft-Mount Rocker Arms Kit: Fits Most Hemi Models
usa
PRW High Performance Sportsman Harmonic Damper: 5.7L Hemi / 6.1L SRT8 / 6.2L Hellcat / 6.4L 392 Engines
usa

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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per 

PRW Steel Black Oxide Rocker Arm Adjuster Screws: Fits Chrysler / Dodge / Jeep / Ram (02-26)
usa
K&N Performance Gold Oil Filter: Fits Charger / Magnum / 300 2005-2007 2.7/3.5L, 5.7/6.1L HEMI / Jeep Grand Cherokee SRT8 2006-2008 6.1L HEMI
K&N Performance Gold Oil Filter: Fits Charger / Magnum / 300 2005-2007 2.7/3.5L, 5.7/6.1L HEMI / Jeep Grand Cherokee SRT8 2006-2008 6.1L HEMI
Granatelli Motor Sports Perf Ignition Wires: Jeep Grand Cherokee 93-98
Granatelli Motor Sports Perf Ignition Wires: Jeep Grand Cherokee 93-98
usa

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)
Granatelli Motor Sports MPG Plus Ignition Wires: Jeep Grand Cherokee (93-98)
usa

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

Unit price
per 

Magnaflow Stainless Steel Front Pipe Kit: Jeep Grand Cherokee (1999-2004)
Magnaflow Stainless Steel Front Pipe Kit: Jeep Grand Cherokee (1999-2004)
usa

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.

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