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5.9L / 6.7L Diesel Engine Upgrades

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670 Results

BD Diesel Premium Perf Injector: Ram 2500 / 3500 2013-2018 6.7L Diesel
Fleece Performance Stage 2 3/8in Pushrods: Dodge Ram 1998-2018 5.9L/6.7L Diesel
usa
CSF OEM Intercooler: Ram 2500 / 3500 2013-2018 6.7L Diesel

CSF OEM Intercooler: Ram 2500 / 3500 2013-2018 6.7L Diesel

CSF

Regular price $849.00 $799.00 6% off

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per 

Snow Performance Stage 3 Boost Cooler Water Injection Kit (W/O Tank): Dodge Ram 2007-2017 5.9L/6.7L Diesel

Snow Performance Stage 3 Boost Cooler Water Injection Kit (W/O Tank): Dodge Ram 2007-2017 5.9L/6.7L Diesel

Snow Performance

Regular price $1,458.35 $1,041.68 29% off

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per 

Mahle OE Piston Set: Fits Dodge Ram 6.7L Diesel 2007-2018

Mahle OE Piston Set: Fits Dodge Ram 6.7L Diesel 2007-2018

Mahle OE

$1,846.09

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per 

BD Diesel High Output Injector: Ram 2500 / 3500 2022-2024 6.7L Diesel
Snow Performance Stg 3 Boost Cooler Water Inj. Kit SS Braided Line (W/O Tank): Dodge Ram 2007-2017 5.9L/6.7L Diesel

Snow Performance Stg 3 Boost Cooler Water Inj. Kit SS Braided Line (W/O Tank): Dodge Ram 2007-2017 5.9L/6.7L Diesel

Snow Performance

Regular price $1,750.02 $1,250.02 29% off

Unit price
per 

Diamond Eye KIT 5in DPF Single SS: Dodge Ram 2500 / 3500 2007-12 Diesel

Diamond Eye KIT 5in DPF Single SS: Dodge Ram 2500 / 3500 2007-12 Diesel

Diamond Eye Performance

$902.74

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per 

Titan Fuel Tanks 50 Gal XXL Mid-Ship Fuel Tank: Fits Ram 2500/3500 2013-2025 6.7L Diesel
usa

Titan Fuel Tanks 50 Gal XXL Mid-Ship Fuel Tank: Fits Ram 2500/3500 2013-2025 6.7L Diesel

Titan Fuel Tanks

Regular price $1,459.00 $1,386.05 5% off

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per 

Fleece Perf PowerFlo Lift Pump Assembly: Ram 2500/3500 6.7L Diesel 2020-2024
usa
Fleece Performance Dual Pump Hardware Kit: Ram 2500 / 3500 2013-2018 6.7L Diesel
usa

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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