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Shop 6.7L Diesel

Upgrade Your 6.7L Cummins Diesel The 6.7L Cummins Diesel is a powerhouse inline-6 turbocharged engine built for heavy-duty performance in Ram 2500 and 3500 trucks. Known for its exceptional torque and towing capability, this engine demands parts that enhance reliability and maximize power potential under demanding conditions. At FastHemis, you’ll find a wide range of performance parts tailored specifically for the 6.7L Cummins. From advanced tuning solutions and high-flow intake systems to exhaust upgrades and turbocharger enhancements, each product is designed to improve fuel efficiency, boost response, and increase overall durability. Key upgrade options for your 6.7L Cummins Diesel include: - Performance tuners and programmers for optimized power - Intake and exhaust systems to improve airflow and reduce backpressure - Turbocharger upgrades and supporting hardware - Fuel system enhancements for better delivery and efficiency - Cooling components to maintain engine temps under load Shop 6.7L Cummins Diesel upgrades at FastHemis.
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2279 Results

Spec D OEM Style Headlights w/ LED Bar (Smoke): Dodge Ram 1994 - 2002
Spec D OEM Style Headlights w/ LED Bar (Smoke): Dodge Ram 1994 - 2002

Spec D OEM Style Headlights w/ LED Bar (Smoke): Dodge Ram 1994 - 2002

Spec D

Regular price $301.00 $223.00 26% off

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Spec D Projector Halo Headlights (Smoke): Dodge Ram 2009 - 2018
Spec D Projector Halo Headlights (Smoke): Dodge Ram 2009 - 2018

Spec D Projector Halo Headlights (Smoke): Dodge Ram 2009 - 2018

Spec D

Regular price $323.00 $239.00 26% off

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Spec D Projector Halo Headlights (Black): Ram 2500 & 3500 2019 - 2024
Spec D Projector Halo Headlights (Black): Ram 2500 & 3500 2019 - 2024

Spec D Projector Halo Headlights (Black): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $880.00 $652.00 26% off

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Spec D Altezza Tail Lights (Smoke): Dodge Ram 2002 - 2006
Spec D Altezza Tail Lights (Smoke): Dodge Ram 2002 - 2006

Spec D Altezza Tail Lights (Smoke): Dodge Ram 2002 - 2006

Spec D

Regular price $95.00 $70.00 26% off

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Spec D Projector Halo Quad Headlights w/ LED Bar (Smoke): Dodge Ram 2006 - 2008
Spec D Projector Halo Quad Headlights w/ LED Bar (Smoke): Dodge Ram 2006 - 2008

Spec D Projector Halo Quad Headlights w/ LED Bar (Smoke): Dodge Ram 2006 - 2008

Spec D

Regular price $344.00 $255.00 26% off

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Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Ram 2500 & 3500 2019 - 2024
Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Ram 2500 & 3500 2019 - 2024

Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $246.00 $182.00 26% off

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Spec D Passenger Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Chrome): Ram 2013 - 2018
Spec D Passenger Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Chrome): Ram 2013 - 2018

Spec D Passenger Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Chrome): Ram 2013 - 2018

Spec D

Regular price $244.00 $181.00 26% off

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Spec D LED Tail Lights (Matte Black, G2): Dodge Ram 2002 - 2005
Spec D LED Tail Lights (Matte Black, G2): Dodge Ram 2002 - 2005

Spec D LED Tail Lights (Matte Black, G2): Dodge Ram 2002 - 2005

Spec D

Regular price $312.00 $231.00 26% off

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Spec D Projector Halo Headlights w/ LED Bar (Black): Dodge Ram 2002 - 2005
Spec D Projector Halo Headlights w/ LED Bar (Black): Dodge Ram 2002 - 2005

Spec D Projector Halo Headlights w/ LED Bar (Black): Dodge Ram 2002 - 2005

Spec D

Regular price $259.00 $192.00 26% off

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Spec D LED Tail Lights (Matte Black): Dodge Ram 2007 - 2009
Spec D LED Tail Lights (Matte Black): Dodge Ram 2007 - 2009

Spec D LED Tail Lights (Matte Black): Dodge Ram 2007 - 2009

Spec D

Regular price $251.00 $186.00 26% off

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Spec D LED Headlights (Chrome w/ LED Sequential Signal): Dodge Ram 2009 - 2018
Spec D LED Headlights (Chrome w/ LED Sequential Signal): Dodge Ram 2009 - 2018

Spec D LED Headlights (Chrome w/ LED Sequential Signal): Dodge Ram 2009 - 2018

Spec D

Regular price $748.00 $554.00 26% off

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Spec D LED Tail Lights (Black): Dodge Ram 2007 - 2009
Spec D LED Tail Lights (Black): Dodge Ram 2007 - 2009

Spec D LED Tail Lights (Black): Dodge Ram 2007 - 2009

Spec D

Regular price $167.00 $124.00 26% off

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Spec D LED Bar Tail Lights (Dark Smoke / White LED): Dodge Ram 2002 - 2006
Spec D LED Bar Tail Lights (Dark Smoke / White LED): Dodge Ram 2002 - 2006

Spec D LED Bar Tail Lights (Dark Smoke / White LED): Dodge Ram 2002 - 2006

Spec D

Regular price $274.00 $203.00 26% off

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Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Dodge Ram 2009 - 2012
Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Dodge Ram 2009 - 2012
Spec D LED Tail Lights (Red, Version 2): Dodge Ram 2002 - 2005
Spec D LED Tail Lights (Red, Version 2): Dodge Ram 2002 - 2005

Spec D LED Tail Lights (Red, Version 2): Dodge Ram 2002 - 2005

Spec D

Regular price $155.00 $115.00 26% off

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Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2009 - 2018
Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2009 - 2018

Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2009 - 2018

Spec D

Regular price $41.00 $30.00 27% off

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Spec D Left & Right Mirrors Set (Manual-Fold, Black): Dodge Ram 1998 - 2002
Spec D Left & Right Mirrors Set (Manual-Fold, Black): Dodge Ram 1998 - 2002

Spec D Left & Right Mirrors Set (Manual-Fold, Black): Dodge Ram 1998 - 2002

Spec D

Regular price $240.00 $178.00 26% off

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Spec D Passenger Mirror w/ Turn & Puddle Light (PASSENGER): Ram 2500 / 3500 (19-26) - Black
Spec D Passenger Mirror w/ Turn & Puddle Light (PASSENGER): Ram 2500 / 3500 (19-26) - Black

Spec D Passenger Mirror w/ Turn & Puddle Light (PASSENGER): Ram 2500 / 3500 (19-26) - Black

Spec D

Regular price $312.00 $231.00 26% off

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Spec D Chrome Mesh Grille (Riveted Style): Dodge Ram 2006 - 2008
Spec D Chrome Mesh Grille (Riveted Style): Dodge Ram 2006 - 2008

Spec D Chrome Mesh Grille (Riveted Style): Dodge Ram 2006 - 2008

Spec D

Regular price $297.00 $220.00 26% off

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Spec D OEM Style Fog Lights (Clear): Ram 2500 & 3500 2019 - 2024
Spec D OEM Style Fog Lights (Clear): Ram 2500 & 3500 2019 - 2024

Spec D OEM Style Fog Lights (Clear): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $559.00 $414.00 26% off

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Spec D OEM Style Headlights w/ LED Bar (Black): Dodge Ram 2006 - 2008
Spec D OEM Style Headlights w/ LED Bar (Black): Dodge Ram 2006 - 2008

Spec D OEM Style Headlights w/ LED Bar (Black): Dodge Ram 2006 - 2008

Spec D

Regular price $254.00 $188.00 26% off

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Spec D Driver Mirror w/ Turn Signal & Puddle Light (Manual-Fold, Chrome): Fits Dodge / Ram (02-18)
Spec D Driver Mirror w/ Turn Signal & Puddle Light (Manual-Fold, Chrome): Fits Dodge / Ram (02-18)
Spec D Projector Headlights w/ Light Bar (Chrome): Dodge Ram 2009 - 2018
Spec D Projector Headlights w/ Light Bar (Chrome): Dodge Ram 2009 - 2018

Spec D Projector Headlights w/ Light Bar (Chrome): Dodge Ram 2009 - 2018

Spec D

Regular price $467.00 $346.00 26% off

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Spec D OEM Style Headlights w/ DRL Light Bar (Black): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $593.00 $439.00 26% off

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per 

Spec D Mirrors SET w/ Clear LED (Manual-Fold, Black): Ram 2013 - 2018
Spec D Mirrors SET w/ Clear LED (Manual-Fold, Black): Ram 2013 - 2018

Spec D Mirrors SET w/ Clear LED (Manual-Fold, Black): Ram 2013 - 2018

Spec D

Regular price $271.00 $201.00 26% off

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Spec D LED Tail Lights (Black w/ Sequential Turn Signal): Ram 2500 & 3500 2019 - 2024
Spec D LED Tail Lights (Black w/ Sequential Turn Signal): Ram 2500 & 3500 2019 - 2024

Spec D LED Tail Lights (Black w/ Sequential Turn Signal): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $552.00 $409.00 26% off

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Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Ram 2013 - 2018
Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Ram 2013 - 2018

Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Ram 2013 - 2018

Spec D

Regular price $201.00 $149.00 26% off

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per 

Spec D LED Tail Lights (Chrome w/ White LED Bar): Dodge Ram 2009 - 2018
Spec D LED Tail Lights (Chrome w/ White LED Bar): Dodge Ram 2009 - 2018

Spec D LED Tail Lights (Chrome w/ White LED Bar): Dodge Ram 2009 - 2018

Spec D

Regular price $246.00 $182.00 26% off

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per 

Spec D Aluminum Radiator (2-Row): Dodge Ram 5.9L & 6.7L Diesel 2003 - 2009
Spec D Aluminum Radiator (2-Row): Dodge Ram 5.9L & 6.7L Diesel 2003 - 2009

Spec D Aluminum Radiator (2-Row): Dodge Ram 5.9L & 6.7L Diesel 2003 - 2009

Spec D

Regular price $394.00 $292.00 26% off

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Spec D LED Tail Lights (Red w/ White LED Bar): Dodge Ram 2009 - 2018
Spec D LED Tail Lights (Red w/ White LED Bar): Dodge Ram 2009 - 2018

Spec D LED Tail Lights (Red w/ White LED Bar): Dodge Ram 2009 - 2018

Spec D

Regular price $234.00 $173.00 26% off

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per 

Spec D Crystal LED Headlights (Chrome): Dodge 1994 - 2002

Spec D

Regular price $119.00 $88.00 26% off

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per 

Spec D Projector Halo Headlights (Black w/ Sequential LED Signal): Ram 2500 & 3500 2019 - 2024
Spec D Projector Halo Headlights (Black w/ Sequential LED Signal): Ram 2500 & 3500 2019 - 2024

Spec D Projector Halo Headlights (Black w/ Sequential LED Signal): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $828.00 $613.00 26% off

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per 

Spec D Rivet Style Stainless Steel Mesh Grille (Glossy Black Outer): Dodge Ram 2002 - 2005
Spec D Rivet Style Stainless Steel Mesh Grille (Glossy Black Outer): Dodge Ram 2002 - 2005

Spec D Rivet Style Stainless Steel Mesh Grille (Glossy Black Outer): Dodge Ram 2002 - 2005

Spec D

Regular price $223.00 $165.00 26% off

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Spec D Crystal Headlights (Chrome): Dodge 1994 - 2002

Spec D

Regular price $113.00 $84.00 26% off

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per 

Spec D DRL LED Headlights (Smoke): Ram 2500 & 3500 2019 - 2024
Spec D DRL LED Headlights (Smoke): Ram 2500 & 3500 2019 - 2024

Spec D DRL LED Headlights (Smoke): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $585.00 $433.00 26% off

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per 

Spec D Mirrors SET w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Dodge Ram 2002 - 2009
Spec D Mirrors SET w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Dodge Ram 2002 - 2009
Spec D LED Bar Tail Lights (Matte Black / Red LED): Dodge Ram 2007 - 2009
Spec D LED Bar Tail Lights (Matte Black / Red LED): Dodge Ram 2007 - 2009

Spec D LED Bar Tail Lights (Matte Black / Red LED): Dodge Ram 2007 - 2009

Spec D

Regular price $297.00 $220.00 26% off

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per 

Spec D LED Tail Lights (Dark Smoke): Dodge Ram 2007 - 2009
Spec D LED Tail Lights (Dark Smoke): Dodge Ram 2007 - 2009

Spec D LED Tail Lights (Dark Smoke): Dodge Ram 2007 - 2009

Spec D

Regular price $167.00 $124.00 26% off

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per 

Spec D LED Tail Lights (Black, Red LED w/ Sequential Turn Signal): Ram 2013 - 2018
Spec D LED Tail Lights (Black, Red LED w/ Sequential Turn Signal): Ram 2013 - 2018

Spec D LED Tail Lights (Black, Red LED w/ Sequential Turn Signal): Ram 2013 - 2018

Spec D

Regular price $400.00 $296.00 26% off

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per 

Spec D OEM Style Fog Lights (Smoke): Ram 2500 & 3500 2019 - 2024
Spec D OEM Style Fog Lights (Smoke): Ram 2500 & 3500 2019 - 2024

Spec D OEM Style Fog Lights (Smoke): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $587.00 $435.00 26% off

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per 

Performance Upgrades for Your 6.7L Cummins Diesel

The 6.7L Cummins Diesel engine is renowned for its exceptional torque and durability, powering Ram 2500 and 3500 trucks through the toughest towing and hauling tasks. To maintain and enhance this legendary performance, selecting the right upgrades tailored specifically for the 6.7L platform is essential.

How intake and exhaust upgrades improve your 6.7L Cummins performance

Optimizing airflow is critical for the 6.7L Cummins to maximize turbo efficiency and power delivery. Upgrading to high-flow intake systems reduces restriction and allows cooler air into the engine, while performance exhaust components minimize backpressure and help the turbo spool faster. Together, these upgrades improve throttle response, fuel economy, and overall engine durability.

  • High-flow air filters and intake tubes for better airflow
  • Downpipes and exhaust systems designed to reduce backpressure
  • Durable materials to withstand diesel exhaust temperatures
  • Improved turbocharger response and efficiency

Choosing the right tuning and fuel system upgrades for your Cummins

Tuning solutions and fuel system enhancements are key to unlocking the full potential of your 6.7L Cummins Diesel. Programmers optimize engine parameters for power and efficiency, while upgraded injectors and fuel pumps ensure consistent delivery under high load. Proper calibration paired with fuel upgrades supports reliable power gains without sacrificing longevity.

Find the best 6.7L Cummins Diesel parts at FastHemis

Whether you’re aiming to improve towing capability, increase horsepower, or boost reliability, FastHemis offers a comprehensive selection of performance parts designed for the 6.7L Cummins Diesel. Explore our range of tuners, intake kits, exhaust components, and turbo upgrades to build a truck that meets your toughest demands.

SELECT YOUR VEHICLE