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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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2503 Results

Westin Heavy Duty Drop Wheel-to-Wheel Nerf Step Bars: Ram 2500 / 3500 2011-2019
Westin Heavy Duty Drop Wheel-to-Wheel Nerf Step Bars: Ram 2500 / 3500 2011-2019

Westin Heavy Duty Drop Wheel-to-Wheel Nerf Step Bars: Ram 2500 / 3500 2011-2019

Westin

Regular price $1,403.75 $1,122.99 20% off

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Westin R5 M-Series Black Nerf Step Bars: Dodge Ram 2500 (2010-2019) / Ram 3500 (2010-2019)
Westin R5 M-Series Black Nerf Step Bars: Dodge Ram 2500 (2010-2019) / Ram 3500 (2010-2019)

Westin R5 M-Series Black Nerf Step Bars: Dodge Ram 2500 (2010-2019) / Ram 3500 (2010-2019)

Westin

Regular price $1,127.50 $901.99 20% off

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Westin Black PRO TRAXX 5 Oval W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024
Westin Black PRO TRAXX 5 Oval W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin Black PRO TRAXX 5 Oval W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin

Regular price $1,303.75 $1,042.99 20% off

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Westin Textured Black R5 M-Series Nerf Step Bars: Ram 2500 / 3500 2019-2024
Westin Textured Black R5 M-Series Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin Textured Black R5 M-Series Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin

Regular price $1,127.50 $901.99 20% off

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per 

Westin Stainless Steel PRO TRAXX 5 Oval W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024
Westin Stainless Steel PRO TRAXX 5 Oval W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin Stainless Steel PRO TRAXX 5 Oval W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin

Regular price $1,602.50 $1,281.99 20% off

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Westin SS Drop Wheel-to-Wheel Nerf Step Bars: Ram 2500 / 3500 (19-24) w/ Textured Black
Westin SS Drop Wheel-to-Wheel Nerf Step Bars: Ram 2500 / 3500 (19-24) w/ Textured Black

Westin SS Drop Wheel-to-Wheel Nerf Step Bars: Ram 2500 / 3500 (19-24) w/ Textured Black

Westin

Regular price $1,638.75 $1,310.99 20% off

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Westin Black R5 M-Series W2W Nerf Step Bars: Dodge Ram 2500 / 3500 (09-19) / Ram 1500 (14-18)
Westin Black R5 M-Series W2W Nerf Step Bars: Dodge Ram 2500 / 3500 (09-19) / Ram 1500 (14-18)

Westin Black R5 M-Series W2W Nerf Step Bars: Dodge Ram 2500 / 3500 (09-19) / Ram 1500 (14-18)

Westin

Regular price $1,127.50 $901.99 20% off

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per 

Go Rhino 4000 Series SideSteps Cab Length: Dodge Ram (94-10)
Go Rhino 4000 Series SideSteps Cab Length: Dodge Ram (94-10)
usa

Go Rhino 4000 Series SideSteps Cab Length: Dodge Ram (94-10)

Go Rhino

Regular price $344.49 $264.99 23% off

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Westin Textured Black Pro-Mod Front Bumper: Ram 2500 / 3500 2019-2024
Westin Textured Black Pro-Mod Front Bumper: Ram 2500 / 3500 2019-2024

Westin Textured Black Pro-Mod Front Bumper: Ram 2500 / 3500 2019-2024

Westin

Regular price $1,561.25 $1,248.99 20% off

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Westin R5 M-Series Wheel-to-Wheel Nerf Bars: Ram 2500 / 3500 2019-2024
Westin R5 M-Series Wheel-to-Wheel Nerf Bars: Ram 2500 / 3500 2019-2024

Westin R5 M-Series Wheel-to-Wheel Nerf Bars: Ram 2500 / 3500 2019-2024

Westin

Regular price $1,516.25 $1,212.99 20% off

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Westin SS PRO TRAXX 5 WTW Oval Nerf Step Bars: Dodge Ram 2500 / 3500 (10-19)
Westin SS PRO TRAXX 5 WTW Oval Nerf Step Bars: Dodge Ram 2500 / 3500 (10-19)

Westin SS PRO TRAXX 5 WTW Oval Nerf Step Bars: Dodge Ram 2500 / 3500 (10-19)

Westin

Regular price $1,602.50 $1,281.99 20% off

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per 

Westin Polished Stainless R5 M-Series Nerf Step Bars: Ram 2500 / 3500 2019-2024
Westin Polished Stainless R5 M-Series Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin Polished Stainless R5 M-Series Nerf Step Bars: Ram 2500 / 3500 2019-2024

Westin

Regular price $1,516.25 $1,212.99 20% off

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Go Rhino 3000 Series StepGuard Center Grille Guard: Dodge Ram 2500 / 3500 (02-18) - Black
Go Rhino 3000 Series StepGuard Center Grille Guard: Dodge Ram 2500 / 3500 (02-18) - Black
usa

Go Rhino 3000 Series StepGuard Center Grille Guard: Dodge Ram 2500 / 3500 (02-18) - Black

Go Rhino

Regular price $597.99 $459.99 23% off

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Westin R5 M-Series W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024 w/ Black Finish
Westin R5 M-Series W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024 w/ Black Finish

Westin R5 M-Series W2W Nerf Step Bars: Ram 2500 / 3500 2019-2024 w/ Black Finish

Westin

Regular price $1,127.50 $901.99 20% off

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per 

Westin Polished SS R5 M-Series Nerf Step Bars: Ram 1500 (14-18) / 2500 (09-19) / 3500 (09-19)
Westin Polished SS R5 M-Series Nerf Step Bars: Ram 1500 (14-18) / 2500 (09-19) / 3500 (09-19)

Westin Polished SS R5 M-Series Nerf Step Bars: Ram 1500 (14-18) / 2500 (09-19) / 3500 (09-19)

Westin

Regular price $1,516.25 $1,212.99 20% off

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per 

Westin Drop W2W Nerf Step Bars (SIDE): Dodge Ram 2500 / 3500 (10-19)
Westin Drop W2W Nerf Step Bars (SIDE): Dodge Ram 2500 / 3500 (10-19)

Westin Drop W2W Nerf Step Bars (SIDE): Dodge Ram 2500 / 3500 (10-19)

Westin

Regular price $1,646.25 $1,316.99 20% off

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Westin SS Nerf Step Bars (SIDE): Fits Dodge / Ram (09-26)
Westin SS Nerf Step Bars (SIDE): Fits Dodge / Ram (09-26)
Westin SS Winch Tray Face Plate: Ram 2500 / Ram 3500 (10-23)
Westin SS Winch Tray Face Plate: Ram 2500 / Ram 3500 (10-23)
Westin Pro-Mod Front Bumper (FRONT): Dodge Ram 1500 / 1500 Classic (09-24) / Ram 2500 / 3500 (21)
Westin Pro-Mod Front Bumper (FRONT): Dodge Ram 1500 / 1500 Classic (09-24) / Ram 2500 / 3500 (21)

Westin Pro-Mod Front Bumper (FRONT): Dodge Ram 1500 / 1500 Classic (09-24) / Ram 2500 / 3500 (21)

Westin

Regular price $1,561.25 $1,248.99 20% off

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per 

Westin Textured Black HDX Drop W2W Nerf Step Bars: Ram 2500 (19-24) / 3500 (19-24)
Westin Textured Black HDX Drop W2W Nerf Step Bars: Ram 2500 (19-24) / 3500 (19-24)

Westin Textured Black HDX Drop W2W Nerf Step Bars: Ram 2500 (19-24) / 3500 (19-24)

Westin

Regular price $1,286.25 $1,028.99 20% off

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Westin R5 M-Series Polished Stainless Steel Nerf Step Bars: Ram 2500 (2010-2019) / 3500 (2010-2019)
Westin R5 M-Series Polished Stainless Steel Nerf Step Bars: Ram 2500 (2010-2019) / 3500 (2010-2019)

Westin R5 M-Series Polished Stainless Steel Nerf Step Bars: Ram 2500 (2010-2019) / 3500 (2010-2019)

Westin

Regular price $1,516.25 $1,212.99 20% off

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per 

Westin Textured Black Xtreme Nerf Step Bars: Fits Dodge / Ram (09-26)
Westin Textured Black Xtreme Nerf Step Bars: Fits Dodge / Ram (09-26)

Westin Textured Black Xtreme Nerf Step Bars: Fits Dodge / Ram (09-26)

Westin

Regular price $880.00 $703.99 20% off

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Westin Outlaw Drop Running Boards Textured Black (SIDE): Fits Dodge / Ram (02-26)
Westin Outlaw Drop Running Boards Textured Black (SIDE): Fits Dodge / Ram (02-26)

Westin Outlaw Drop Running Boards Textured Black (SIDE): Fits Dodge / Ram (02-26)

Westin

Regular price $781.25 $624.99 20% off

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Method Wheels 321 / Machined - Clear Coat | 17x8.5 | 5x5.5 | 0/4.72"
Method Wheels 321 / Machined - Clear Coat | 17x8.5 | 5x5.5 | 0/4.72"
Westin HDX Winch Mount Grille Guard: Ram 2500 / 3500 2019-2023
Westin Black R5 XD Nerf Step Bars (SIDE): Fits Dodge Ram 1500 / 2500 / 3500 (09-24)
Westin Black R5 XD Nerf Step Bars (SIDE): Fits Dodge Ram 1500 / 2500 / 3500 (09-24)

Westin Black R5 XD Nerf Step Bars (SIDE): Fits Dodge Ram 1500 / 2500 / 3500 (09-24)

Westin

Regular price $868.75 $694.99 20% off

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per 

Westin Black PRO TRAXX 5 WTW Oval Nerf Step Bars: Dodge Ram 2500 / 3500 (10-19)
Westin Black PRO TRAXX 5 WTW Oval Nerf Step Bars: Dodge Ram 2500 / 3500 (10-19)

Westin Black PRO TRAXX 5 WTW Oval Nerf Step Bars: Dodge Ram 2500 / 3500 (10-19)

Westin

Regular price $1,303.75 $1,042.99 20% off

Unit price
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.

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