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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.

SELECT YOUR VEHICLE

531 Results

Spec D Corner Lights (Chrome): Dodge Charger 2006 - 2010
Spec D Corner Lights (Chrome): Dodge Charger 2006 - 2010

Spec D Corner Lights (Chrome): Dodge Charger 2006 - 2010

Spec D

Regular price $26.00 $19.00 27% off

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Spec D Corner Lights (Chrome): Jeep Grand Cherokee 1993 - 1998
Spec D Corner Lights (Chrome): Jeep Grand Cherokee 1993 - 1998

Spec D Corner Lights (Chrome): Jeep Grand Cherokee 1993 - 1998

Spec D

Regular price $30.00 $22.00 27% off

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Spec D Crystal Head Lights (Black): Dodge Ram 2009 - 2014
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Spec D Crystal Head Lights (Black): Dodge Ram 2009 - 2014

Spec D

Regular price $295.00 $235.00 20% off

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

Spec D

Regular price $113.00 $84.00 26% off

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Spec D Crystal Headlights (Black): Dodge Neon 2003 - 2005
Spec D Crystal Headlights (Black): Dodge Neon 2003 - 2005

Spec D Crystal Headlights (Black): Dodge Neon 2003 - 2005

Spec D

Regular price $142.00 $105.00 26% off

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Spec D Crystal Headlights (Black): Jeep Grand Cherokee 1993 - 1998
Spec D Crystal Headlights (Black): Jeep Grand Cherokee 1993 - 1998

Spec D Crystal Headlights (Black): Jeep Grand Cherokee 1993 - 1998

Spec D

Regular price $146.00 $108.00 26% off

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Spec D Crystal Headlights (Black): Jeep Grand Cherokee 1999 - 2004
Spec D Crystal Headlights (Black): Jeep Grand Cherokee 1999 - 2004
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Spec D Crystal Headlights (Black): Jeep Grand Cherokee 1999 - 2004

Spec D

Regular price $108.00 $80.00 26% off

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Spec D Crystal Headlights (Black, Version 2): Jeep Grand Cherokee 1999 - 2004
Spec D Crystal Headlights (Black, Version 2): Jeep Grand Cherokee 1999 - 2004

Spec D Crystal Headlights (Black, Version 2): Jeep Grand Cherokee 1999 - 2004

Spec D

Regular price $128.00 $95.00 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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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 Crystal Headlights (Chrome): Jeep Grand Cherokee 1999 - 2004
Spec D Crystal Headlights (Chrome): Jeep Grand Cherokee 1999 - 2004

Spec D Crystal Headlights (Chrome): Jeep Grand Cherokee 1999 - 2004

Spec D

Regular price $97.00 $72.00 26% off

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Spec D Crystal Headlights (Chrome, Version 2): Jeep Grand Cherokee 1999 - 2004
Spec D Crystal Headlights (Chrome, Version 2): Jeep Grand Cherokee 1999 - 2004

Spec D Crystal Headlights (Chrome, Version 2): Jeep Grand Cherokee 1999 - 2004

Spec D

Regular price $109.00 $81.00 26% off

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Spec D Crystal Headlights (Smoke): Dodge Dakota & Durango 1997 - 2004
Spec D Crystal Headlights (Smoke): Dodge Dakota & Durango 1997 - 2004
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Spec D Crystal Headlights (Smoke): Dodge Dakota & Durango 1997 - 2004

Spec D

Regular price $155.00 $115.00 26% off

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Spec D Crystal Headlights (Smoke): Dodge Ram 1500 2006 - 2008 /  2006-2009 RAM 2500 3500
Spec D Crystal Headlights (Smoke): Dodge Ram 1500 2006 - 2008 /  2006-2009 RAM 2500 3500
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Spec D Crystal Headlights (Smoke): Dodge Ram 1500 2006 - 2008 / 2006-2009 RAM 2500 3500

Spec D

Regular price $162.00 $135.00 17% off

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Spec D Crystal Headlights (Smoke): Dodge Ram 1994 - 2002
Spec D Crystal Headlights (Smoke): Dodge Ram 1994 - 2002

Spec D Crystal Headlights (Smoke): Dodge Ram 1994 - 2002

Spec D

Regular price $122.00 $90.00 26% off

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

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

Spec D

Regular price $97.00 $72.00 26% off

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Spec D Crystal Headlights (Smoke): Jeep 1999 - 2004

Spec D

Regular price $105.00 $78.00 26% off

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Spec D Crystal Headlights (Smoke): Jeep Grand Cherokee 1993 - 1998
Spec D Crystal Headlights (Smoke): Jeep Grand Cherokee 1993 - 1998

Spec D Crystal Headlights (Smoke): Jeep Grand Cherokee 1993 - 1998

Spec D

Regular price $139.00 $103.00 26% off

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Spec D Crystal Headlights (Smoke, Version 2): Jeep 1999 - 2004

Spec D

Regular price $100.00 $74.00 26% off

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Spec D Crystal Headlights w/ LED's (Smoke): Dodge Dakota & Durango 1997 - 2004
Spec D Crystal Headlights w/ LED's (Smoke): Dodge Dakota & Durango 1997 - 2004

Spec D Crystal Headlights w/ LED's (Smoke): Dodge Dakota & Durango 1997 - 2004

Spec D

Regular price $207.00 $153.00 26% off

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

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

Spec D

Regular price $119.00 $88.00 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 Crystal LED Headlights (Chrome): Dodge 1994 - 2002

Spec D

Regular price $119.00 $88.00 26% off

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

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

Spec D

Regular price $130.00 $96.00 26% off

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

Spec D

Regular price $124.00 $92.00 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 Driver Mirror w/ Turn & Puddle Light (MANUAL-FOLD, BLACK): Ram 2500 / 3500 (19-26)
Spec D Driver Mirror w/ Turn & Puddle Light (MANUAL-FOLD, BLACK): Ram 2500 / 3500 (19-26)

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

Spec D

Regular price $220.00 $163.00 26% off

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

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

Spec D

Regular price $312.00 $231.00 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 Driver Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Black): Ram 1500 2019 - 2024
Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Black): Ram 1500 2019 - 2024

Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Black): Ram 1500 2019 - 2024

Spec D

Regular price $261.00 $193.00 26% off

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

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

Spec D

Regular price $240.00 $178.00 26% off

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Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Chrome): Ram 1500 2019 - 2024
Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Chrome): Ram 1500 2019 - 2024

Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Auto-Fold, Chrome): Ram 1500 2019 - 2024

Spec D
4.0 (1)

Regular price $219.00 $162.00 26% off

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

Spec D Driver 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 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 Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Ram 1500 2019 - 2024
Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Black): Ram 1500 2019 - 2024
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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Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Chrome): Ram 1500 2019 - 2024
Spec D Driver Mirror w/ Turn Signal Light & Puddle Light (Manual-Fold, Chrome): Ram 1500 2019 - 2024
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 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 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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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