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4.7L /5.2L / 5.9L Engine Upgrades

4.7L, 5.2L, and 5.9L engines represent the heart of classic Mopar trucks and SUVs, known for their durability and torque. Whether you’re working on a 5.9L Magnum 360 or its 4.7L and 5.2L counterparts, these engines provide a solid foundation for reliable daily driving and bolt-on performance upgrades. At FastHemis, you’ll find a selection of parts designed to maintain and enhance these legacy powerplants. From ignition and fuel system upgrades to bolt-on performance components, our parts help improve throttle response, increase torque, and extend engine life. These upgrades are ideal for Ram trucks, Dakotas, and Durangos that demand dependable power and classic Mopar character. Popular upgrades for 4.7L / 5.2L / 5.9L engines include: - Ignition and fuel delivery enhancements - Performance intake and exhaust components - Durable maintenance parts for long-term reliability - Torque-focused bolt-on upgrades Shop 4.7L / 5.2L / 5.9L engine upgrades at FastHemis.
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808 Results

DiabloSport inTune i3 Platinum Programmer: 300 / Challenger / Charger / Magnum / Ram / Durango 2005 - 2014

DiabloSport inTune i3 Platinum Programmer: 300 / Challenger / Charger / Magnum / Ram / Durango 2005 - 2014

Diablo Sport
4.8 (8)

Regular price $535.95 $475.95 11% off

Unit price
per 

Cometic MLS Head Gaskets (3.950" Bore): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025
Cometic MLS Head Gaskets (3.950" Bore): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025
usa

Cometic MLS Head Gaskets (3.950" Bore): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025

Cometic Gasket
5.0 (1)

Regular price from $96.54 Up to 10% off

Unit price
per 

American Brother Designs Oil Cap Cover: Chrysler / Dodge / Jeep / Ram Hemi 2005 - 2024
American Brother Designs Oil Cap Cover: Chrysler / Dodge / Jeep / Ram Hemi 2005 - 2024
usa

American Brother Designs Oil Cap Cover: Chrysler / Dodge / Jeep / Ram Hemi 2005 - 2024

American Brother Designs
4.5 (2)

Regular price $101.49 $69.00 32% off

Unit price
per 

Cometic Timing Cover Gasket Set: Chrysler / Dodge / Jeep / Ram 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L Hellcat & Trackhawk 2003 - 2025
Cometic Timing Cover Gasket Set: Chrysler / Dodge / Jeep / Ram 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L Hellcat & Trackhawk 2003 - 2025
usa
DiabloSport Trinity 2 (T2 EX) Platinum Programmer / Monitor: Chrysler / Dodge / Ram 2005 - 2014
DiabloSport Trinity 2 (T2 EX) Platinum Programmer / Monitor: Chrysler / Dodge / Ram 2005 - 2014

DiabloSport Trinity 2 (T2 EX) Platinum Programmer / Monitor: Chrysler / Dodge 2005 - 2014

Diablo Sport
5.0 (3)

Regular price $818.95 $727.95 11% off

Unit price
per 

Cometic Intake Manifold Gaskets (O-Ring/Set): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025
Cometic Intake Manifold Gaskets (O-Ring/Set): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025
usa

Cometic Intake Manifold Gaskets (O-Ring/Set): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2023

Cometic Gasket
5.0 (1)

Regular price $24.01 $21.61 10% off

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per 

Vibrant O2 Sensor Restrictor Fitting (STRAIGHT) w/ Adjustable Jets (CEL Eliminator)
Vibrant O2 Sensor Restrictor Fitting (STRAIGHT) w/ Adjustable Jets (CEL Eliminator)

Vibrant O2 Sensor Restrictor Fitting (STRAIGHT) w/ Adjustable Jets (CEL Eliminator)

Vibrant
5.0 (1)

Regular price from $22.99 25% off

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per 

Cometic Thermostat Gasket: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 2003 - 2025
Cometic Thermostat Gasket: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 2003 - 2025
usa

Cometic Thermostat Gasket: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392

Cometic Gasket
5.0 (2)

Regular price $4.05 $3.64 10% off

Unit price
per 

DiabloSport inTune i3 Platinum Programmer: Jeep Grand Cherokee / Wrangler / Commander 2005 - 2014

DiabloSport inTune i3 Platinum Programmer: Jeep Grand Cherokee / Wrangler / Commander 2005 - 2014

Diablo Sport
4.5 (2)

Regular price $535.95 $475.95 11% off

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per 

American Brother Designs Washer Fluid Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs Washer Fluid Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
usa

American Brother Designs Washer Fluid Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025

American Brother Designs

Regular price $109.00 $59.00 46% off

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per 

DiabloSport inTune i3 Programmer: 300 / Challenger / Charger / Magnum / Ram / Durango 2005 - 2014
DiabloSport inTune i3 Programmer: 300 / Challenger / Charger / Magnum / Ram / Durango 2005 - 2014

DiabloSport inTune i3 Programmer: 300 / Challenger / Charger / Magnum / Ram / Durango 2005 - 2014

Diablo Sport
5.0 (2)

Regular price $535.95 $475.95 11% off

Unit price
per 

Cometic MLS Exhaust Manifold / Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008
Cometic MLS Exhaust Manifold / Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008
usa

Cometic MLS Exhaust Manifold / Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008

Cometic Gasket

Regular price $44.19 $39.77 10% off

Unit price
per 

American Brother Designs Radiator Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs Radiator Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
usa

American Brother Designs Radiator Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025

American Brother Designs
5.0 (1)

Regular price $109.00 $59.00 46% off

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per 

American Brother Designs Engine Bay Tag: Chrysler / Dodge / Jeep / Ram
American Brother Designs Engine Bay Tag: Chrysler / Dodge / Jeep / Ram
usa

American Brother Designs Engine Bay Tag: Chrysler / Dodge / Jeep / Ram

American Brother Designs
5.0 (1)

Regular price $76.00 $56.00 26% off

Unit price
per 

Cometic Oil Pan Gasket w/ Windage Tray: Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2023
Cometic Oil Pan Gasket w/ Windage Tray: Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2023
usa

Cometic Oil Pan Gasket w/ Windage Tray: Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2023

Cometic Gasket
5.0 (1)

Regular price $82.26 $74.04 10% off

Unit price
per 

AFE Throttle Body Spacer: Dodge Ram, Ram 5.7L Hemi 2009 - 2022
AFE Throttle Body Spacer: Dodge Ram, Ram 5.7L Hemi 2009 - 2022
usa

aFe Throttle Body Spacer: Dodge Ram 5.7L (09-22)

aFe

$139.00

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per 

Cometic Rear Main Seal Set: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat
Cometic Rear Main Seal Set: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat
usa

Cometic Rear Main Seal Set: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat

Cometic Gasket
5.0 (1)

Regular price $46.62 $41.96 10% off

Unit price
per 

American Brother Designs Coolant Reservoir Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs Coolant Reservoir Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
usa

American Brother Designs Coolant Reservoir Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025

American Brother Designs

Regular price $109.00 $59.00 46% off

Unit price
per 

Granatelli 95mm Throttle Body Black: Fits HEMI 2013-2024 5.7/6.1/6.4L
Granatelli 95mm Throttle Body Black: Fits HEMI 2013-2024 5.7/6.1/6.4L
usa

Granatelli 95mm Throttle Body Black: Fits HEMI 2013-2024 5.7/6.1/6.4L

Granatelli Motor Sports

Regular price $682.50 $648.38 5% off

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per 

Fast Hemis One-Click Stage 1 Kit: 2006-2010 Dodge Charger 3.5L V6 (+39HP)
Fast Hemis One-Click Stage 1 Kit: 2006-2010 Dodge Charger 3.5L V6 (+39HP)

Ripp Hi-Perf Coil Packs: Fits Dodge / Chrysler / Jeep V8 (02-26)

Ripp

from $489.46

Unit price
per 

6 colors
  • HEMI Orange
  • Plum Crazy
  • Sublime Green
  • Steel Gray
  • Mopar Blue
  • +1 more
DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge  / Ram 2005 - 2014
DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge  / Ram 2005 - 2014

DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge 2005 - 2014

Diablo Sport

Regular price $818.95 $727.95 11% off

Unit price
per 

Pedal Commander Bluetooth Throttle Response Controller: 300 / Challenger / Charger / Magnum 2007 - 2024 (All Models)
Pedal Commander Bluetooth Throttle Response Controller: 300 / Challenger / Charger / Magnum 2007 - 2024 (All Models)
Flowtech Shorty Headers (Black Painted): Dodge Dakota / Durango 4.7L V8 2000 - 2003

Flowtech Shorty Headers (Black Painted): Dodge Dakota / Durango 4.7L V8 2000 - 2003

Flowtech

Regular price $519.95 $324.95 38% off

Unit price
per 

Flowmaster FloxFX Exhaust System: Jeep Grand Cherokee 4.0L / 4.7L 1999 - 2004
Flowmaster FloxFX Exhaust System: Jeep Grand Cherokee 4.0L / 4.7L 1999 - 2004
usa

Flowmaster FloxFX Exhaust System: Jeep Grand Cherokee 4.0L / 4.7L 1999 - 2004

Flowmaster
5.0 (2)

Regular price $393.95 $314.95 20% off

Unit price
per 

Stainless Works Long Tube Headers and Mid Pipes: Dodge Ram 1500 / Ram 1500 / Ram 2500 / Ram 3500
Stainless Works Long Tube Headers and Mid Pipes: Dodge Ram 1500 / Ram 1500 / Ram 2500 / Ram 3500
usa

Stainless Works Long Tube Headers & Mid Pipes: Dodge Ram 5.7L Hemi 1500 2009 - 2018 (1500)

Stainless Works
5.0 (1)

Regular price from $2,560.25 Up to 5% off

Unit price
per 

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.

SELECT YOUR VEHICLE