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5.9L / 6.7L Diesel Engine Upgrades

5.9L and 6.7L Diesel Engine Upgrades for Power and Durability The 5.9L Magnum V8 and 6.7L Cummins inline-6 are legendary diesel platforms known for their torque, towing capability, and long-lasting reliability. Whether you drive a classic Ram with the 5.9L or a modern heavy-duty Ram equipped with the 6.7L Cummins, these engines respond well to targeted upgrades that enhance performance and dependability. In this collection, you’ll find parts tailored to diesel-specific needs including intake and exhaust improvements, turbocharger enhancements, fuel system upgrades, and tuning solutions. These components help maximize torque output, improve throttle response, and boost towing power while maintaining the rugged reliability these engines are known for. Popular upgrade categories include: - Turbocharger and intercooler upgrades - High-flow intake and exhaust systems - Diesel fuel system enhancements - Performance tuning and calibration tools - Durability and reliability parts Shop 5.9L and 6.7L diesel engine upgrades at FastHemis.
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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

DiabloSport inTune i3 Platinum Programmer: Fits Dodge / Chrysler / Ram (05-14)

Diablo Sport
4.8 (8)

Regular price $535.95 $475.95 11% off

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American Brother Designs Oil Cap Cover: Chrysler / Dodge / Jeep / Ram Hemi 2005 - 2025
American Brother Designs Oil Cap Cover: Chrysler / Dodge / Jeep / Ram Hemi 2005 - 2025
usa

American Brother Designs Oil Cap Cover: Chrysler / Dodge / Jeep / Ram Hemi 2005 - 2025

American Brother Designs
4.5 (2)

Regular price $101.49 $69.00 32% off

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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

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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

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S&B Cold Air Intake: Ram 6.7L Cummins Diesel 2019 - 2024 (2500 / 3500)
S&B Cold Air Intake: Ram 6.7L Cummins Diesel 2019 - 2024 (2500 / 3500)
usa

S&B Cold Air Intake: Ram 6.7L Cummins Diesel 2019 - 2024 (2500 / 3500)

S&B Filters

Regular price $429.99 $349.00 19% off

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Bully Dog 06-21 Dodge Charger / 08-21 Dodge Challenger Thruster Throttle Booster
Bully Dog 06-21 Dodge Charger / 08-21 Dodge Challenger Thruster Throttle Booster

Bully Dog Thruster Throttle Booster: Fits Most Chrysler / Dodge / Jeep / Ram Models (2005-2022)

Bully Dog

Regular price $299.00 $157.57 47% off

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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

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AFE Cold Air Intake: Dodge Ram 5.7L Hemi 2003 - 2008 (V2)
AFE Cold Air Intake: Dodge Ram 5.7L Hemi 2003 - 2008 (V2)
usa

aFe Cold Air Intake (V2): Dodge Ram 5.7L Hemi (03-08)

aFe
5.0 (1)

from $376.00 25% off

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Gibson 98-03 Dodge Dakota R/T 5.9L 1-1/2in 16 Gauge Performance Header - Ceramic Coated
Gibson 98-03 Dodge Dakota R/T 5.9L 1-1/2in 16 Gauge Performance Header - Ceramic Coated
usa

Gibson Ceramic Coated Performance Header: Dodge Dakota (96-03) / Durango (98-03) / Ram 1500 (96-03)

Gibson

Regular price $1,704.34 $783.29 54% off

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5.9L Magnum & 6.7L Cummins Diesel Engine Upgrades for Torque and Reliability

The 5.9L Magnum V8 and 6.7L Cummins inline-6 are iconic diesel engines celebrated for their torque, towing strength, and durability. Whether you own a classic Ram with the 5.9L or a modern heavy-duty Ram powered by the 6.7L Cummins, upgrading these engines with diesel-specific performance parts can significantly enhance power delivery and dependability.

How Diesel Engine Upgrades Improve Your 5.9L and 6.7L Performance

Diesel engines like the 5.9L Magnum and 6.7L Cummins thrive on torque and efficiency. Upgrades focused on intake airflow, exhaust flow, and fuel delivery optimize combustion and turbocharger response. These improvements translate to stronger towing capability, better throttle response, and sustained power under load.

  • High-flow intake and exhaust systems reduce restrictions and improve turbo efficiency
  • Turbocharger and intercooler upgrades enhance boost control and charge air cooling
  • Fuel system enhancements ensure consistent fuel delivery for higher power demands
  • Performance tuning calibrates engine parameters for optimized power and reliability

Choosing the Right Upgrades for Your Diesel Engine Goals

When selecting upgrades for your 5.9L or 6.7L diesel, consider your primary use—whether it’s daily driving, heavy towing, or performance builds. Intake and exhaust modifications improve airflow, while turbocharger enhancements increase boost and efficiency. Fuel system upgrades become critical as power levels rise, and tuning ties all components together for smooth operation.

Maximize Your Diesel Engine’s Potential with FastHemis Upgrades

From intake manifolds and turbochargers to fuel system components and tuning tools, FastHemis offers a comprehensive selection of parts tailored to the 5.9L Magnum and 6.7L Cummins platforms. Explore our collection to find reliable, performance-driven upgrades that maintain the rugged durability these engines are known for.

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