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

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

Spec D

Regular price $412.00 $305.00 26% off

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

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

Spec D

Regular price $207.00 $153.00 26% off

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

Spec D

Regular price $111.00 $82.00 26% off

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Spec D Rebel Grille w/ LED's (Matte Black): Dodge Ram 2500 / 3500 2010 - 2018
Spec D Rebel Grille w/ LED's (Matte Black): Dodge Ram 2500 / 3500 2010 - 2018

Spec D Rebel Grille w/ LED's (Matte Black): Dodge Ram 2500 / 3500 2010 - 2018

Spec D

Regular price $270.00 $200.00 26% off

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

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

Spec D

Regular price $552.00 $409.00 26% off

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

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

Spec D

Regular price $493.00 $439.00 11% off

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

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

Spec D

Regular price $873.00 $647.00 26% off

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Spec D LED Tail Lights (Black): Dodge Ram 2009 - 2018

Spec D

Regular price $397.00 $294.00 26% off

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Spec D LED Projector Headlights (Chrome): Dodge Ram 2006 - 2008
Spec D LED Projector Headlights (Chrome): Dodge Ram 2006 - 2008

Spec D LED Projector Headlights (Chrome): Dodge Ram 2006 - 2008

Spec D

Regular price $427.00 $316.00 26% off

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

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

Spec D

Regular price $598.00 $443.00 26% off

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Spec D Riveted Style Fender Flares (Texture Black, 4pc): Dodge Ram 1500 2009 - 2018
Spec D Riveted Style Fender Flares (Texture Black, 4pc): Dodge Ram 1500 2009 - 2018

Spec D Riveted Style Fender Flares (Texture Black, 4pc): Dodge Ram 1500 2009 - 2018

Spec D

Regular price $207.00 $153.00 26% off

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Spec D Crystal Headlights (Chrome): Dodge Ram 2002 - 2005
Spec D Crystal Headlights (Chrome): Dodge Ram 2002 - 2005

Spec D Crystal Headlights (Chrome): Dodge Ram 2002 - 2005

Spec D

Regular price $105.00 $78.00 26% off

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

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

Spec D

Regular price $219.00 $162.00 26% off

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

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

Spec D

Regular price $809.00 $599.00 26% off

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

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

Spec D

Regular price $537.00 $398.00 26% off

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Spec D Driver Mirror w/ Turn & Puddle Light (AUTO-FOLD, Chrome): Ram 2500 / 3500 (19-26)
Spec D Driver Mirror w/ Turn & Puddle Light (AUTO-FOLD, Chrome): Ram 2500 / 3500 (19-26)

Spec D Driver Mirror w/ Turn & Puddle Light (AUTO-FOLD, Chrome): Ram 2500 / 3500 (19-26)

Spec D

Regular price $321.00 $238.00 26% off

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

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

Spec D

Regular price $292.00 $216.00 26% off

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Spec D Projector Halo Headlights (Glossy Black): Dodge Ram 2006 - 2008
Spec D Projector Halo Headlights (Glossy Black): Dodge Ram 2006 - 2008

Spec D Projector Halo Headlights (Glossy Black): Dodge Ram 2006 - 2008

Spec D

Regular price $282.00 $209.00 26% off

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Spec D LED Projector Headlights (Glossy Black): Dodge Ram 2006 - 2008
Spec D LED Projector Headlights (Glossy Black): Dodge Ram 2006 - 2008

Spec D LED Projector Headlights (Glossy Black): Dodge Ram 2006 - 2008

Spec D

Regular price $481.00 $356.00 26% off

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

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

Spec D

Regular price $188.00 $139.00 26% off

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Spec D Factory Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2500 & 3500 2010 - 2018
Spec D Factory Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2500 & 3500 2010 - 2018

Spec D Factory Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2500 & 3500 2010 - 2018

Spec D

Regular price $136.00 $101.00 26% off

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Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2002 - 2009
Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2002 - 2009

Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2002 - 2009

Spec D

Regular price $142.00 $105.00 26% off

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

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

Spec D

Regular price $554.00 $410.00 26% off

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Spec D Factory Style Fender Flares (Texture Black, 4pc): Dodge Ram 1994 - 2002
Spec D Factory Style Fender Flares (Texture Black, 4pc): Dodge Ram 1994 - 2002

Spec D Factory Style Fender Flares (Texture Black, 4pc): Dodge Ram 1994 - 2002

Spec D

Regular price $124.00 $92.00 26% off

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Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2002 - 2009
Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2002 - 2009

Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2002 - 2009

Spec D

Regular price $46.00 $34.00 26% off

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Spec D Projector Halo Headlights (Glossy Black): Dodge Ram 2002 - 2005
Spec D Projector Halo Headlights (Glossy Black): Dodge Ram 2002 - 2005

Spec D Projector Halo Headlights (Glossy Black): Dodge Ram 2002 - 2005

Spec D

Regular price $224.00 $166.00 26% off

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Spec D Euro Headlights (Black): Dodge Ram 2009 - 2018
Spec D Euro Headlights (Black): Dodge Ram 2009 - 2018

Spec D Euro Headlights (Black): Dodge Ram 2009 - 2018

Spec D

Regular price $153.00 $113.00 26% off

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Spec D OEM Style Headlights & Corner Lights (Chrome): Dodge Ram 1998 - 2002
Spec D OEM Style Headlights & Corner Lights (Chrome): Dodge Ram 1998 - 2002

Spec D OEM Style Headlights & Corner Lights (Chrome): Dodge Ram 1998 - 2002

Spec D

Regular price $92.00 $68.00 26% off

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

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

Spec D

Regular price $286.00 $212.00 26% off

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Spec D Fog Lights (Smoke): Dodge Ram 2002 - 2005
Spec D Fog Lights (Smoke): Dodge Ram 2002 - 2005

Spec D Fog Lights (Smoke): Dodge Ram 2002 - 2005

Spec D

Regular price $77.00 $57.00 26% off

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per 

Spec D Projector Halo Headlights (Dark Smoke): Dodge Ram 1994 - 2002
Spec D Projector Halo Headlights (Dark Smoke): Dodge Ram 1994 - 2002

Spec D Projector Halo Headlights (Dark Smoke): Dodge Ram 1994 - 2002

Spec D

Regular price $193.00 $143.00 26% off

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

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

Spec D

Regular price $194.00 $144.00 26% off

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Spec D Passenger Mirror (Manual-Fold, Black): Dodge Ram 1500 2009 - 2018
Spec D Passenger Mirror (Manual-Fold, Black): Dodge Ram 1500 2009 - 2018

Spec D Passenger Mirror (Manual-Fold, Black): Dodge Ram 1500 2009 - 2018

Spec D

Regular price $119.00 $88.00 26% off

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Spec D LED Tail Lights (Dark Smoke, G2): Dodge Ram 2007 - 2009
Spec D LED Tail Lights (Dark Smoke, G2): Dodge Ram 2007 - 2009

Spec D LED Tail Lights (Dark Smoke, G2): Dodge Ram 2007 - 2009

Spec D

Regular price $213.00 $158.00 26% off

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per 

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

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

Spec D

Regular price $552.00 $409.00 26% off

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per 

Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2500 / 3500 2010 - 2018
Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2500 / 3500 2010 - 2018

Spec D Riveted Style Fender Flares (Smooth Black, 4pc): Dodge Ram 2500 / 3500 2010 - 2018

Spec D

Regular price $192.00 $142.00 26% off

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Spec D LED Tail Lights (Smoke w/ White LED Bar): Dodge Ram 2009 - 2018 (LT-RAM09GLED-G2-TM)
Spec D LED Tail Lights (Smoke w/ White LED Bar): Dodge Ram 2009 - 2018 (LT-RAM09GLED-G2-TM)

Spec D LED Tail Lights (Smoke w/ White LED Bar): Dodge Ram 2009 - 2018 (LT-RAM09GLED-G2-TM)

Spec D

Regular price $259.00 $192.00 26% off

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Spec D Tailgate Cap Cover (Black): Dodge Ram 2006 - 2009
Spec D Tailgate Cap Cover (Black): Dodge Ram 2006 - 2009

Spec D Tailgate Cap Cover (Black): Dodge Ram 2006 - 2009

Spec D

Regular price $108.00 $80.00 26% off

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Spec D Tailgate Cap Cover (Black): Dodge Ram 2002 - 2009
Spec D Tailgate Cap Cover (Black): Dodge Ram 2002 - 2009

Spec D Tailgate Cap Cover (Black): Dodge Ram 2002 - 2009

Spec D

Regular price $105.00 $78.00 26% off

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per 

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

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

Spec D

Regular price $880.00 $652.00 26% off

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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.

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