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Spec D

Built for your Spec D platform, this collection offers a range of high-quality aftermarket parts and upgrades designed to enhance your vehicle’s performance and reliability. Whether you’re looking to improve power delivery, throttle response, or overall durability, these components are engineered to meet the demands of serious enthusiasts.

Inside this category, you’ll find everything from performance engine parts to supporting upgrades that help optimize your build. Each product is selected with fitment and function in mind, ensuring compatibility and maximum impact on your Spec D setup.

  • Engine internals for strength and reliability
  • Performance upgrades for power and response
  • Supporting mods to enhance overall drivability
  • Durable components built for long-term use

Shop Spec D aftermarket upgrades for your vehicle at FastHemis.

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531 Results

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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Spec D DRL LED Projector Headlights (White w/ Switchback Sequential Signal): Ram 1500 2019 - 2024
Spec D DRL LED Projector Headlights (White w/ Switchback Sequential Signal): Ram 1500 2019 - 2024

Spec D DRL LED Projector Headlights (White w/ Switchback Sequential Signal): Ram 1500 2019 - 2024

Spec D

Regular price $750.00 $554.00 26% off

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Spec D Dual Snorkel Grille (Black): Dodge Charger 2015 - 2023
Spec D Dual Snorkel Grille (Black): Dodge Charger 2015 - 2023
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Spec D Dual Snorkel Grille (Black): Dodge Charger 2015 - 2023

Spec D

Regular price $77.00 $57.00 26% off

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Spec D Euro 3D Tail Lights (Chrome): Dodge Ram 2002 - 2006
Spec D Euro 3D Tail Lights (Chrome): Dodge Ram 2002 - 2006

Spec D Euro 3D Tail Lights (Chrome): Dodge Ram 2002 - 2006

Spec D

Regular price $73.00 $54.00 26% off

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Spec D Euro 3D Tail Lights(Black): Dodge Ram 2002 - 2006
Spec D Euro 3D Tail Lights(Black): Dodge Ram 2002 - 2006

Spec D Euro 3D Tail Lights(Black): Dodge Ram 2002 - 2006

Spec D

Regular price $85.00 $63.00 26% off

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Spec D Euro Head Lights (Black): Dodge Dakota / Durango 1997 - 2004
Spec D Euro Head Lights (Black): Dodge Dakota / Durango 1997 - 2004

Spec D Euro Head Lights (Black): Dodge Dakota / Durango 1997 - 2004

Spec D
5.0 (1)

Regular price $124.00 $92.00 26% off

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Spec D Euro Head Lights (Black): Dodge Neon 2003 - 2005

Spec D Euro Head Lights (Black): Dodge Neon 2003 - 2005

Spec D

Regular price $228.00 $169.00 26% off

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Spec D Euro Head Lights (Black): Dodge Ram 1994 - 2001
Spec D Euro Head Lights (Black): Dodge Ram 1994 - 2001
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Spec D Euro Head Lights (Black): Dodge Ram 1994 - 2001

Spec D
5.0 (1)

Regular price $113.00 $84.00 26% off

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Spec D Euro Head Lights (Black): Dodge Ram 1994 - 2001

Spec D Euro Head Lights (Black): Dodge Ram 1994 - 2001

Spec D

Regular price $255.00 $189.00 26% off

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Spec D Euro Head Lights (Black): Dodge Ram 2002 - 2005
Spec D Euro Head Lights (Black): Dodge Ram 2002 - 2005

Spec D Euro Head Lights (Black): Dodge Ram 2002 - 2005

Spec D

Regular price $105.00 $78.00 26% off

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Spec D Euro Head Lights (Black): Dodge Ram 2006 - 2008
Spec D Euro Head Lights (Black): Dodge Ram 2006 - 2008

Spec D Euro Head Lights (Black): Dodge Ram 2006 - 2008

Spec D

Regular price $158.00 $117.00 26% off

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Spec D Euro Head Lights (Chrome): Dodge Dakota / Durango 1997 - 2004
Spec D Euro Head Lights (Chrome): Dodge Dakota / Durango 1997 - 2004

Spec D Euro Head Lights (Chrome): Dodge Dakota / Durango 1997 - 2004

Spec D

Regular price $116.00 $86.00 26% off

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Spec D Euro Head Lights (Chrome): Dodge Ram 1994 - 2001

Spec D Euro Head Lights (Chrome): Dodge Ram 1994 - 2001

Spec D

Regular price $255.00 $189.00 26% off

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per 

Spec D Euro Head Lights (Chrome): Dodge Ram 1994 - 2001
Spec D Euro Head Lights (Chrome): Dodge Ram 1994 - 2001

Spec D Euro Head Lights (Chrome): Dodge Ram 1994 - 2001

Spec D

Regular price $113.00 $84.00 26% off

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Spec D Euro Headlights (Black): Dodge Charger 2006 - 2010
Spec D Euro Headlights (Black): Dodge Charger 2006 - 2010

Spec D Euro Headlights (Black): Dodge Charger 2006 - 2010

Spec D

Regular price $155.00 $115.00 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 Euro Headlights (Chrome): Dodge Charger 2006 - 2010
Spec D Euro Headlights (Chrome): Dodge Charger 2006 - 2010

Spec D Euro Headlights (Chrome): Dodge Charger 2006 - 2010

Spec D

Regular price $144.00 $107.00 26% off

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Spec D Euro Headlights (Chrome): Dodge Ram 2006 - 2009
Spec D Euro Headlights (Chrome): Dodge Ram 2006 - 2009
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Spec D Euro Headlights (Chrome): Dodge Ram 2006 - 2009

Spec D

Regular price $146.00 $108.00 26% off

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Spec D Euro Headlights (Chrome): Dodge Ram 2009 - 2016
Spec D Euro Headlights (Chrome): Dodge Ram 2009 - 2016
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Spec D Euro Headlights (Chrome): Dodge Ram 2009 - 2016

Spec D

Regular price $167.00 $124.00 26% off

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Spec D Euro Headlights (Smoke): Dodge Ram 2006 - 2009
Spec D Euro Headlights (Smoke): Dodge Ram 2006 - 2009

Spec D Euro Headlights (Smoke): Dodge Ram 2006 - 2009

Spec D

Regular price $182.00 $135.00 26% off

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

Spec D

Regular price $177.00 $131.00 26% off

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Spec D Euro Headlights Black: Dodge Charger 2006 - 2010
Spec D Euro Headlights Black: Dodge Charger 2006 - 2010
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Spec D Euro Headlights Black: Dodge Charger 2006 - 2010

Spec D

Regular price $155.00 $115.00 26% off

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Spec D Euro Headlights Chrome: Dodge Charger 2006 - 2010
Spec D Euro Headlights Chrome: Dodge Charger 2006 - 2010
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Spec D Euro Headlights Chrome: Dodge Charger 2006 - 2010

Spec D

Regular price $144.00 $107.00 26% off

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Spec D Euro Headlights w/ Corner Lights (Black): Dodge Charger 2006 - 2010
Spec D Euro Headlights w/ Corner Lights (Black): Dodge Charger 2006 - 2010
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Spec D Euro Headlights w/ Corner Lights (Black): Dodge Charger 2006 - 2010

Spec D

Regular price $155.00 $115.00 26% off

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Spec D Euro LED Head Lights (Black): Dodge Dakota / Durango 1997 - 2004
Spec D Euro LED Head Lights (Black): Dodge Dakota / Durango 1997 - 2004

Spec D Euro LED Head Lights (Black): Dodge Dakota / Durango 1997 - 2004

Spec D

Regular price $157.00 $116.00 26% off

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Spec D Euro LED Head Lights (Black): Dodge Ram 1994 - 2001
Spec D Euro LED Head Lights (Black): Dodge Ram 1994 - 2001

Spec D Euro LED Head Lights (Black): Dodge Ram 1994 - 2001

Spec D

Regular price $111.00 $82.00 26% off

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Spec D Euro LED Head Lights (Chrome): Dodge Dakota / Durango 1997 - 2004
Spec D Euro LED Head Lights (Chrome): Dodge Dakota / Durango 1997 - 2004
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Spec D Euro LED Head Lights (Chrome): Dodge Dakota / Durango 1997 - 2004

Spec D

Regular price $139.00 $103.00 26% off

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Spec D Euro Tail Lights (Black): Dodge Dakota 1997 - 2004

Spec D Euro Tail Lights (Black): Dodge Dakota 1997 - 2004 (LT-DAK97JM-KS)

Spec D

Regular price $120.00 $89.00 26% off

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Spec D Euro Tail Lights (Black): Dodge Dakota 1997 - 2004
Spec D Euro Tail Lights (Black): Dodge Dakota 1997 - 2004

Spec D Euro Tail Lights (Black): Dodge Dakota 1997 - 2004 (LT-DAK97JM-TM)

Spec D

Regular price $122.00 $90.00 26% off

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Spec D Euro Tail Lights (Black): Dodge Magnum 2005 - 2008
Spec D Euro Tail Lights (Black): Dodge Magnum 2005 - 2008

Spec D Euro Tail Lights (Black): Dodge Magnum 2005 - 2008

Spec D

Regular price $131.00 $97.00 26% off

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Spec D Euro Tail Lights (Black): Dodge Ram 1994 - 2001
Spec D Euro Tail Lights (Black): Dodge Ram 1994 - 2001
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Spec D Euro Tail Lights (Black): Dodge Ram 1994 - 2001

Spec D

Regular price $84.00 $62.00 26% off

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Spec D Euro Tail Lights (Black): Dodge Ram 2002 - 2006
Spec D Euro Tail Lights (Black): Dodge Ram 2002 - 2006
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Spec D Euro Tail Lights (Black): Dodge Ram 2002 - 2006

Spec D

Regular price $88.00 $65.00 26% off

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Spec D Euro Tail Lights (Chrome): Dodge Dakota 1997 - 2004
Spec D Euro Tail Lights (Chrome): Dodge Dakota 1997 - 2004
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Spec D Euro Tail Lights (Chrome): Dodge Dakota 1997 - 2004

Spec D

Regular price $100.00 $74.00 26% off

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Spec D Euro Tail Lights (Chrome): Dodge Dakota 1997 - 2004
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Spec D Euro Tail Lights (Chrome): Dodge Dakota 1997 - 2004

Spec D

Regular price $109.00 $81.00 26% off

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Spec D Euro Tail Lights (Chrome): Dodge Magnum 2005 - 2008
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Spec D Euro Tail Lights (Chrome): Dodge Magnum 2005 - 2008

Spec D

Regular price $136.00 $112.00 18% off

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Spec D Euro Tail Lights (Chrome): Dodge Ram 1994 - 2001
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Spec D Euro Tail Lights (Chrome): Dodge Ram 1994 - 2001

Spec D

Regular price $109.00 $81.00 26% off

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Spec D Euro Tail Lights (Chrome): Dodge Ram 2002 - 2006

Spec D Euro Tail Lights (Chrome): Dodge Ram 2002 - 2006 (LT-RAM02-KS)

Spec D

Regular price $109.00 $81.00 26% off

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Spec D Euro Tail Lights (Chrome): Dodge Ram 2002 - 2006
Spec D Euro Tail Lights (Chrome): Dodge Ram 2002 - 2006

Spec D Euro Tail Lights (Chrome): Dodge Ram 2002 - 2006 (LT-RAM02-TM)

Spec D

Regular price $80.00 $59.00 26% off

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

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

Spec D

Regular price $84.00 $62.00 26% off

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Spec D Extended Fender Flares (Textured Black, 6pc): Jeep Wrangler TJ 1997 - 2006
Spec D Extended Fender Flares (Textured Black, 6pc): Jeep Wrangler TJ 1997 - 2006
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Spec D Extended Fender Flares (Textured Black, 6pc): Jeep Wrangler TJ 1997 - 2006

Spec D

Regular price $131.00 $97.00 26% off

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per 

Enhance Your Spec D Platform with Performance Engine Internals and Upgrades

Optimizing your Spec D vehicle requires parts that deliver both strength and precision. This collection focuses on high-quality aftermarket components engineered to improve power delivery, throttle response, and overall durability. Whether you’re building for daily reliability or track-ready performance, these upgrades are designed to fit and function seamlessly on your Spec D setup.

Why upgrade your engine internals on a Spec D platform?

Upgrading engine internals is essential for enhancing the strength and reliability of your Spec D vehicle, especially if you’re pushing power limits or running forced induction. Stronger pistons, rods, and other components help your engine withstand increased stress and heat, reducing the risk of failure and extending engine life. These upgrades also improve throttle response and power consistency under demanding conditions.

  • Increase durability for high-performance builds
  • Improve power delivery and throttle response
  • Ensure compatibility with supporting performance mods
  • Maintain long-term reliability during aggressive driving

What supporting modifications should I consider for my Spec D build?

To maximize the benefits of your Spec D engine internals, consider complementary upgrades that enhance overall drivability and performance. Supporting mods like upgraded fuel systems, cooling components, and exhaust improvements help maintain engine health and optimize power output. Proper tuning is also critical to ensure all parts work together efficiently and safely.

How to choose the right Spec D aftermarket parts for your vehicle?

Selecting the right parts for your Spec D platform means focusing on fitment, function, and your specific performance goals. Whether you need engine internals built for strength or performance upgrades that sharpen response, prioritize components designed to integrate smoothly with your existing setup. Shop the full Spec D collection at FastHemis to find parts tailored to your build and driving style.

SELECT YOUR VEHICLE