USE COUPON CODE "SUMMER26"

Your cart

Your cart is empty

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.
SELECT YOUR VEHICLE

2279 Results

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

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

Spec D

Regular price $82.00 $61.00 26% off

Unit price
per 

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

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

Spec D

Regular price $142.00 $105.00 26% off

Unit price
per 

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

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

Spec D

Regular price $147.00 $109.00 26% off

Unit price
per 

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 $161.00 $119.00 26% off

Unit price
per 

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

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

Spec D

Regular price $448.00 $332.00 26% off

Unit price
per 

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

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

Spec D

Regular price $288.00 $213.00 26% off

Unit price
per 

Hawk Talon D&S Brake Rotor Set (FRONT): Dodge Ram 1500 / 2500 / 3500 (03-08)
Hawk Talon D&S Brake Rotor Set (FRONT): Dodge Ram 1500 / 2500 / 3500 (03-08)
usa

Hawk Talon D&S Brake Rotor Set (FRONT): Dodge Ram 1500 / 2500 / 3500 (03-08)

Hawk Performance

Regular price $520.99 $416.79 20% off

Unit price
per 

Stopping Power
Performance Over Stock
Hawk Talon D&S Rear Brake Rotor Set: Dodge Ram 1500 / 2500 / 3500 (03-08)
Hawk Talon D&S Rear Brake Rotor Set: Dodge Ram 1500 / 2500 / 3500 (03-08)
usa

Hawk Talon D&S Rear Brake Rotor Set: Dodge Ram 1500 / 2500 / 3500 (03-08)

Hawk Performance

Regular price $542.99 $434.39 20% off

Unit price
per 

Stopping Power
Performance Over Stock
Method Wheels 701 /  Machined - Clear Coat | 17x8.5 | 8x6.5 | 0/4.75"
Method Wheels 701 /  Machined - Clear Coat | 17x8.5 | 8x6.5 | 0/4.75"
Liqui Moly Speed Tec Gasoline: Fits Most Models
Liqui Moly Speed Tec Gasoline: Fits Most Models

Liqui Moly Speed Tec Gasoline: Fits Most Models

LIQUI MOLY

$101.70

Unit price
per 

Eibach Pro-Truck Suspension Lift Kit (FRONT AND REAR): Ram 2500 2014-2021
Eibach Pro-Truck Suspension Lift Kit (FRONT AND REAR): Ram 2500 2014-2021

Eibach Pro-Truck Suspension Lift Kit (FRONT AND REAR): Ram 2500 2014-2021

Eibach

Regular price $1,305.56 $1,175.00 10% off

Unit price
per 

Bilstein B6 4600 Front Shock: Ram 2500 2WD 2014 - 2025 (w/OUT Air Leveling Suspension)
Bilstein B6 4600 Front Shock: Ram 2500 2WD 2014 - 2025 (w/OUT Air Leveling Suspension)

Bilstein B6 4600 Front Shock: Ram 2500 2WD 2014 - 2025 (w/OUT Air Leveling Suspension)

Bilstein

Regular price $154.85 $104.00 33% off

Unit price
per 

Go Rhino RB20 Running Boards Complete Kit w/ Brackets: Fits Dodge / Ram 1500 / 2500 / 3500 (02-26)
Go Rhino RB20 Running Boards Complete Kit w/ Brackets: Fits Dodge / Ram 1500 / 2500 / 3500 (02-26)
usa

Go Rhino RB20 Running Boards Complete Kit w/ Brackets: Fits Dodge / Ram 1500 / 2500 / 3500 (02-26)

Go Rhino

Regular price $747.48 $574.98 23% off

Unit price
per 

Bilstein B8 5100 Rear Shock: Ram 2500 2014 - 2018 (For OEM Ride Height WITH Air Leveling Suspension)
Bilstein B8 5100 Rear Shock: Ram 2500 2014 - 2018 (For OEM Ride Height WITH Air Leveling Suspension)

Bilstein B8 5100 Rear Shock: Ram 2500 2014 - 2018 (For OEM Ride Height WITH Air Leveling Suspension)

Bilstein

Regular price $171.85 $123.00 28% off

Unit price
per 

Hawk Performance Slotted-Only Rear Brake Rotor Set (REAR): Dodge Ram 2500 / Ram 3500 (09-10)
Hawk Performance Slotted-Only Rear Brake Rotor Set (REAR): Dodge Ram 2500 / Ram 3500 (09-10)
usa

Hawk Performance Slotted-Only Rear Brake Rotor Set (REAR): Dodge Ram 2500 / Ram 3500 (09-10)

Hawk Performance

Regular price $608.99 $487.19 20% off

Unit price
per 

Stopping Power
Performance Over Stock
Nitrous Express 90mm Hemi Plate System (50-400hp) w/12lb Bottle
Nitrous Express 90mm Hemi Plate System (50-400hp) w/12lb Bottle

Nitrous Express 90mm Hemi Plate System (50-400hp) w/12lb Bottle

Nitrous Express

$1,816.05

Unit price
per 

PowerStop Z36 Truck & Tow Brake Kit (REAR): Dodge Ram 1500 / 2500 / 3500 (02-18)
PowerStop Z36 Truck & Tow Brake Kit (REAR): Dodge Ram 1500 / 2500 / 3500 (02-18)

PowerStop Z36 Truck & Tow Brake Kit (REAR): Dodge Ram 1500 / 2500 / 3500 (02-18)

PowerStop

$521.37

Unit price
per 

Stopping Power
Noise Level
Performance Over Stock
Dust Levels
Edge EvoHT2 Handheld Tuner: Fits Most GM / Ford / Dodge RAM Trucks

Edge EvoHT2 Handheld Tuner: Fits Most GM / Ford / Dodge RAM Trucks

Edge

Regular price $518.95 $349.95 33% off

Unit price
per 

Holley Replacement Water Neck Seal: Fits Most Dodge / Jeep / Ram Models (2003-2023)

Holley Replacement Water Neck Seal: Fits Most Dodge / Jeep / Ram Models (2003-2023)

Holley

Regular price $4.57 $3.65 20% off

Unit price
per 

EBC S15 Brake Pads & Rotors Kit (REAR): Ram 2500 & 3500 2019 - 2025
EBC S15 Brake Pads & Rotors Kit (REAR): Ram 2500 & 3500 2019 - 2025

EBC S15 Brake Pads & Rotors Kit (REAR): Ram 2500 & 3500 2019 - 2025

EBC

Regular price $775.18 $736.42 5% off

Unit price
per 

Stopping Power
Noise Level
Performance Over Stock
Dust Levels
EBC S8 Brake Pads & Rotors Kit (REAR): Ram 2500 & 3500 2019 - 2025
EBC S8 Brake Pads & Rotors Kit (REAR): Ram 2500 & 3500 2019 - 2025

EBC S8 Brake Pads & Rotors Kit (REAR): Ram 2500 & 3500 2019 - 2025

EBC

Regular price $775.18 $736.42 5% off

Unit price
per 

Stopping Power
Noise Level
Performance Over Stock
Dust Levels

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