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5.9L / 6.7L Diesel Engine Upgrades

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674 Results

ATS Diesel Aurora 3000 Turbo Kit: Dodge Ram 2500 / Ram 3500 1998-2002
ATS Diesel Aurora 3000 Turbo Kit: Dodge Ram 2500 / Ram 3500 1998-2002
usa
ATS Diesel Turbo Kit: Dodge Ram 2500 / Ram 3500 1994-1998
ATS Diesel Turbo Kit: Dodge Ram 2500 / Ram 3500 1994-1998
usa

ATS Diesel Turbo Kit: Dodge Ram 2500 / Ram 3500 1994-1998

ATS Diesel

$1,784.99

Unit price
per 

ATS Diesel Aurora 3000 Turbo Kit: Dodge Ram 2500 / Ram 3500 2003-2007
ATS Diesel Aurora 3000 Turbo Kit: Dodge Ram 2500 / Ram 3500 2003-2007
usa
ATS Diesel 3pc Pulse Flow Manifold: Dodge Ram 2500 / Ram 3500 1998-2002
ATS Diesel 3pc Pulse Flow Manifold: Dodge Ram 2500 / Ram 3500 1998-2002
usa
Hellwig Hardware Kit: Fits Dodge / Ram (80-22)
Hellwig Hardware Kit: Fits Dodge / Ram (80-22)
usa

Hellwig Hardware Kit: Fits Most Dodge/Ram (94-25)

Hellwig

Regular price $255.55 $178.90 30% off

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per 

MBRP Aluminum Filter Back Exhaust Single Side Exit: Ram 2500 / Ram 3500 2013-2024
MBRP Aluminum Filter Back Exhaust Single Side Exit: Ram 2500 / Ram 3500 2013-2024
MBRP Aluminum CC/SB Filter Back Exhaust Single Side Exit: Ram 2500 / 3500 2013-2018
MBRP Aluminum CC/SB Filter Back Exhaust Single Side Exit: Ram 2500 / 3500 2013-2018
MBRP Aluminized 4 Down-Pipe: Dodge Ram 2500 / Ram 3500 1994-2002
MBRP Aluminized 4 Down-Pipe: Dodge Ram 2500 / Ram 3500 1994-2002

MBRP Aluminized 4 Down-Pipe: Dodge Ram 2500 / Ram 3500 1994-2002

MBRP

Regular price $228.52 $184.99 19% off

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per 

MBRP Aluminized 4 Down-Pipe: Dodge Ram 2500 / Ram 3500 2003-2004
MBRP Aluminized 4 Down-Pipe: Dodge Ram 2500 / Ram 3500 2003-2004

MBRP Aluminized 4 Down-Pipe: Dodge Ram 2500 / Ram 3500 2003-2004

MBRP

Regular price $228.52 $184.99 19% off

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per 

MBRP 4 Down-Pipe T409: Dodge Ram 2500 / Ram 3500 1994-2002
MBRP 4 Down-Pipe T409: Dodge Ram 2500 / Ram 3500 1994-2002

MBRP 4 Down-Pipe T409: Dodge Ram 2500 / Ram 3500 1994-2002

MBRP

Regular price $284.11 $229.99 19% off

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per 

MBRP 4 Down-Pipe T409: Dodge Ram 2500 / Ram 3500 2003-2004
MBRP 4 Down-Pipe T409: Dodge Ram 2500 / Ram 3500 2003-2004

MBRP 4 Down-Pipe T409: Dodge Ram 2500 / Ram 3500 2003-2004

MBRP

Regular price $253.22 $204.99 19% off

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per 

MBRP Muffler Delete Pipe: Dodge Ram 2500 (07-12) / Ram 3500 (07-12)
MBRP Muffler Delete Pipe: Dodge Ram 2500 (07-12) / Ram 3500 (07-12)

MBRP Muffler Delete Pipe: Ram 2500 / 3500 11-12 6.7L Diesel/5.7L

MBRP

Regular price $129.69 $104.99 19% off

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per 

MBRP ARMOR PRO Turbo-Back Exhaust SS 4" Single Side Exit (REAR): Dodge Ram 2500/3500 98-02 5.9L Cummins
MBRP ARMOR PRO Turbo-Back Exhaust SS 4" Single Side Exit (REAR): Dodge Ram 2500/3500 98-02 5.9L Cummins
MBRP Aluminum Exhaust System: Dodge Ram 2500 / Ram 3500 (07-10) / 2500 / 3500 (11-12)
MBRP Aluminum Exhaust System: Dodge Ram 2500 / Ram 3500 (07-10) / 2500 / 3500 (11-12)

MBRP Aluminum Exhaust System: Ram 2500 / 3500 11-12 6.7L Diesel/5.7L

MBRP

Regular price $555.87 $449.99 19% off

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per 

MBRP Black Coated Filter Back Single Side Exhaust System: Dodge Ram 2500 / Ram 3500 2007-2012
MBRP Black Coated Filter Back Single Side Exhaust System: Dodge Ram 2500 / Ram 3500 2007-2012
MagnaFlow Tail-Pipe: Dodge Ram 2500 / Ram 3500 2003-2004
MagnaFlow Tail-Pipe: Dodge Ram 2500 / Ram 3500 2003-2004
usa
MagnaFlow Tail-Pipe: Dodge Ram 2500 / Ram 3500 2004-2007
MagnaFlow Tail-Pipe: Dodge Ram 2500 / Ram 3500 2004-2007
usa
Liqui Moly Cera Tec: Fits Most Models
Liqui Moly Cera Tec: Fits Most Models

Liqui Moly Cera Tec: Fits Most Models

LIQUI MOLY

$299.70

Unit price
per 

Liqui Moly Top Tec ATF 1400: Fits Most Models
Liqui Moly Top Tec ATF 1400: Fits Most Models

Liqui Moly Top Tec ATF 1400: Fits Most Models

LIQUI MOLY

$125.70

Unit price
per 

Liqui Moly Special Tec V Motor Oil: Fits Most Models
Liqui Moly Special Tec V Motor Oil: Fits Most Models

Liqui Moly Special Tec V Motor Oil: Fits Most Models

LIQUI MOLY

$319.80

Unit price
per 

Liqui Moly Pro-Line Diesel Cleaner: Fits Most Models
Liqui Moly Pro-Line Diesel Cleaner: Fits Most Models

Liqui Moly Pro-Line Diesel Cleaner: Fits Most Models

LIQUI MOLY

$209.70

Unit price
per 

Liqui Moly Top Tec Truck 4450 Motor Oil: Fits Most Dodge / Ram Models
Liqui Moly Top Tec Truck 4450 Motor Oil: Fits Most Dodge / Ram Models

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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