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5.9L / 6.7L Diesel Engine Upgrades

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674 Results

Earl's Performance Aluminum Oil Filter Block-Off: Fits Most Chrysler / Dodge / Jeep / Ram Models (2008-2020) - Black Anodized

Earl's Perf Aluminum Oil Filter Block-Off: Fits Chrysler / Dodge / Jeep / Ram (08-20) - Black

Earl's Performance

Regular price $37.67 $34.82 8% off

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Earl's Performance Aluminum Oil Filter Relocation Kit: Fits Most Chrysler / Dodge / Jeep / Ram 2008-2020

Earl's Perf Aluminum Oil Filter Relocation Kit: Fits Chrysler / Dodge / Jeep / Ram (08-20)

Earl's Performance

Regular price $230.95 $212.95 8% off

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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 3% off

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Flowmaster FloxFX Exhaust System (Dual Side Exit): Dodge Ram 3.9L, 5.2L & 5.9L 1994 - 2001 (1500 / 2500 / 3500)
Flowmaster FloxFX Exhaust System (Dual Side Exit): Dodge Ram 3.9L, 5.2L & 5.9L 1994 - 2001 (1500 / 2500 / 3500)
usa
Liqui Moly Hybrid Additive: Fits Most Models
Liqui Moly Hybrid Additive: Fits Most Models

Liqui Moly Hybrid Additive: Fits Most Models

LIQUI MOLY

$107.70

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Mishimoto Silicone Intake Hose Black (FRONT): Dodge Ram 2500/3500/4500 03-07 5.9L Cummins
Mishimoto Silicone Intake Hose Black (FRONT): Dodge Ram 2500/3500/4500 03-07 5.9L Cummins

Mishimoto Black Silicone Air Intake Hose Kit: Dodge Ram 1500/2500/3500 2003-2007 5.9L Diesel

Mishimoto

Regular price $174.00 $157.95 9% off

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Banks Power Boost Tube Kit 3.5in (F&R): RAM 2500/3500 2019-2026 6.7L Cummins Red
Banks Power Boost Tube Kit 3.5in (F&R): RAM 2500/3500 2019-2026 6.7L Cummins Red
usa

Banks Power Boost Tube Kit 3.5in (F&R): Ram 2500 / 3500 19-24 6.7L Diesel

Banks Power

Regular price $550.00 $495.00 10% off

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Mishimoto Intercooler Pipe & Boot Kit (F&R): Dodge Ram 2500/3500 2003-2007 5.9L Cummins
Mishimoto Intercooler Pipe & Boot Kit (F&R): Dodge Ram 2500/3500 2003-2007 5.9L Cummins

Mishimoto Intercooler Pipe & Boot Kit 3.5": Dodge Ram 2500 / 3500 5.9L Diesel 2003-2007

Mishimoto

Regular price $495.00 $449.95 9% off

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Mishimoto Intercooler Black (F&R): Dodge/RAM 2500/3500 03-09 5.9/6.7L Cummins
Mishimoto Intercooler Black (F&R): Dodge/RAM 2500/3500 03-09 5.9/6.7L Cummins
Banks Power Intercooler Upgrade Kit Raw (F&R): 13-18 RAM 2500/3500 6.7L Cummins
Banks Power Intercooler Upgrade Kit Raw (F&R): 13-18 RAM 2500/3500 6.7L Cummins
usa

Banks Power Intercooler Upgrade Kit Raw (F&R): Ram 2500 / 3500 13-18 6.7L Diesel

Banks Power

Regular price $2,021.11 $1,819.00 10% off

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Banks Intercooler Upgrade Red (FRONT): RAM 2500/3500 2013-2018 6.7L Cummins
Banks Intercooler Upgrade Red (FRONT): RAM 2500/3500 2013-2018 6.7L Cummins
usa

Banks Intercooler Upgrade Red (FRONT): Ram 2500 / 3500 13-18 6.7L Diesel

Banks Power

Regular price $2,032.22 $1,829.00 10% off

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Banks Boost Tube Upgrade Kit Cold Side (3.5in) (DRIVER): Dodge Ram 2500/3500 6.7L Cummins 2007-2009
Banks Boost Tube Upgrade Kit Cold Side (3.5in) (DRIVER): Dodge Ram 2500/3500 6.7L Cummins 2007-2009
usa
Banks Power Boost Tube Upgrade Kit 3.5in Red Left Cold Side (FRONT): 13-18 RAM 2500/3500 6.7L Cummins
Banks Power Boost Tube Upgrade Kit 3.5in Red Left Cold Side (FRONT): 13-18 RAM 2500/3500 6.7L Cummins
usa

Banks Power Boost Tube Upgrade Kit 3.5in Red Left Cold Side (FRONT): Ram 2500 / 3500 13-18 6.7L Diesel

Banks Power

Regular price $265.56 $239.00 10% off

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Mishimoto Intercooler Kit Silver (F&R): Dodge Ram 2500/3500 2003-2007 5.9L Cummins
Mishimoto Intercooler Kit Silver (F&R): Dodge Ram 2500/3500 2003-2007 5.9L Cummins

Mishimoto Silver Intercooler Kit w/ Pipes: Dodge Ram 2500 / 3500 5.9L Diesel 2003-2007

Mishimoto

Regular price $1,679.00 $1,525.95 9% 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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