USE COUPON CODE "SUMMER26"

Your cart

Your cart is empty

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 Heavy-Duty Steel Rear Bumper: Dodge Ram 2500 & 3500 2010 - 2018
Spec D Heavy-Duty Steel Rear Bumper: Dodge Ram 2500 & 3500 2010 - 2018

Spec D Heavy-Duty Steel Rear Bumper: Dodge Ram 2500 & 3500 2010 - 2018

Spec D

Regular price $766.00 $567.00 26% off

Unit price
per 

Spec D Hellcat Style Rear Spoiler (Gloss Black): Dodge Charger 2015 - 2023
Spec D Hellcat Style Rear Spoiler (Gloss Black): Dodge Charger 2015 - 2023
Sold out

Spec D Hellcat Style Rear Spoiler (Gloss Black): Dodge Charger 2015 - 2023

Spec D

Regular price $142.00 $105.00 26% off

Unit price
per 

Spec D Hellcat Style Rear Spoiler (Matte Black): Dodge Challenger 2008 - 2023
Spec D Hellcat Style Rear Spoiler (Matte Black): Dodge Challenger 2008 - 2023
Sold out

Spec D Hellcat Style Rear Spoiler (Matte Black): Dodge Challenger 2008 - 2023

Spec D

Regular price $77.00 $57.00 26% off

Unit price
per 

Spec D LED 3rd Brake Light (Chrome): Dodge Ram 1994 - 2002
Spec D LED 3rd Brake Light (Chrome): Dodge Ram 1994 - 2002
Sold out

Spec D LED 3rd Brake Light (Chrome): Dodge Ram 1994 - 2002

Spec D

Regular price $31.00 $23.00 26% off

Unit price
per 

Spec D LED 3rd Brake Light (Chrome): Dodge Ram 2002 - 2009
Spec D LED 3rd Brake Light (Chrome): Dodge Ram 2002 - 2009
Sold out

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

Spec D

Regular price $46.00 $34.00 26% off

Unit price
per 

Spec D LED 3rd Brake Light (Clear): Dodge Ram 2009 - 2018
Spec D LED 3rd Brake Light (Clear): Dodge Ram 2009 - 2018
Sold out

Spec D LED 3rd Brake Light (Clear): Dodge Ram 2009 - 2018

Spec D

Regular price $41.00 $30.00 27% off

Unit price
per 

Spec D LED 3rd Brake Light (Smoke): Dodge Ram 1994 - 2001
Spec D LED 3rd Brake Light (Smoke): Dodge Ram 1994 - 2001
Sold out

Spec D LED 3rd Brake Light (Smoke): Dodge Ram 1994 - 2001

Spec D

Regular price $32.00 $24.00 25% off

Unit price
per 

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

Unit price
per 

Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2009 - 2018
Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2009 - 2018

Spec D LED 3rd Brake Light (Smoke): Dodge Ram 2009 - 2018

Spec D

Regular price $41.00 $30.00 27% off

Unit price
per 

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

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

Spec D

Regular price $274.00 $203.00 26% off

Unit price
per 

Spec D LED Bar Tail Lights (Dark Smoke / White LED): Dodge Ram 2007 - 2009
Spec D LED Bar Tail Lights (Dark Smoke / White LED): Dodge Ram 2007 - 2009
Sold out

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

Spec D

Regular price $279.00 $207.00 26% off

Unit price
per 

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

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

Spec D

Regular price $271.00 $201.00 26% off

Unit price
per 

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

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

Spec D

Regular price $297.00 $220.00 26% off

Unit price
per 

Spec D LED Bar Tail Lights (Matte Black / White LED): Dodge Ram 2002 - 2006
Spec D LED Bar Tail Lights (Matte Black / White LED): Dodge Ram 2002 - 2006

Spec D LED Bar Tail Lights (Matte Black / White LED): Dodge Ram 2002 - 2006

Spec D

Regular price $279.00 $207.00 26% off

Unit price
per 

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

Unit price
per 

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

Unit price
per 

Spec D LED Bar Tail Lights (Smoke / Red LED): Dodge Ram 2007 - 2009
Spec D LED Bar Tail Lights (Smoke / Red LED): Dodge Ram 2007 - 2009
Sold out

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

Spec D

Regular price $290.00 $215.00 26% off

Unit price
per 

Spec D LED Fog Lights (Clear): Ram 1500 2019 - 2024
Spec D LED Fog Lights (Clear): Ram 1500 2019 - 2024
Sold out

Spec D LED Fog Lights (Clear): Ram 1500 2019 - 2024

Spec D

Regular price $130.00 $97.00 25% off

Unit price
per 

Spec D LED Fog Lights (Clear): Ram 2500 & 3500 2019 - 2024
Spec D LED Fog Lights (Clear): Ram 2500 & 3500 2019 - 2024
Sold out

Spec D LED Fog Lights (Clear): Ram 2500 & 3500 2019 - 2024

Spec D

Regular price $150.00 $111.00 26% off

Unit price
per 

Spec D LED Fog Lights (Smoke): Ram 1500 2019 - 2024
Spec D LED Fog Lights (Smoke): Ram 1500 2019 - 2024
Sold out

Spec D LED Fog Lights (Smoke): Ram 1500 2019 - 2024

Spec D

Regular price $153.00 $113.00 26% off

Unit price
per 

Spec D LED Fog Lights: Dodge Ram & Durango 2002 - 2009
Spec D LED Fog Lights: Dodge Ram & Durango 2002 - 2009
Sold out

Spec D LED Fog Lights: Dodge Ram & Durango 2002 - 2009

Spec D

Regular price $84.00 $75.00 11% off

Unit price
per 

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

Unit price
per 

Spec D LED Headlights (Black): Chrysler 300C 2005 - 2010
Spec D LED Headlights (Black): Chrysler 300C 2005 - 2010
Sold out

Spec D LED Headlights (Black): Chrysler 300C 2005 - 2010

Spec D

Regular price $410.00 $304.00 26% off

Unit price
per 

Spec D LED Headlights (Black): Dodge Charger 2005 - 2010
Spec D LED Headlights (Black): Dodge Charger 2005 - 2010

Spec D LED Headlights (Black): Dodge Charger 2005 - 2010

Spec D

Regular price $208.00 $154.00 26% off

Unit price
per 

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

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

Spec D

Regular price $225.00 $167.00 26% off

Unit price
per 

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

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

Spec D

Regular price $262.00 $194.00 26% off

Unit price
per 

Spec D LED Headlights (Black): Dodge Ram 2002 - 2005
Spec D LED Headlights (Black): Dodge Ram 2002 - 2005
Sold out

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

Spec D

Regular price $230.00 $170.00 26% off

Unit price
per 

Spec D LED Headlights (Black): Jeep Grand Cherokee 1999 - 2004
Spec D LED Headlights (Black): Jeep Grand Cherokee 1999 - 2004
Sold out

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

Spec D

Regular price $209.00 $155.00 26% off

Unit price
per 

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

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

Spec D

Regular price $748.00 $554.00 26% off

Unit price
per 

Spec D LED Headlights (Chrome): Chrysler 300C 2005 - 2010
Spec D LED Headlights (Chrome): Chrysler 300C 2005 - 2010
Sold out

Spec D LED Headlights (Chrome): Chrysler 300C 2005 - 2010

Spec D

Regular price $410.00 $304.00 26% off

Unit price
per 

Spec D LED Headlights (Chrome): Dodge Charger 2005 - 2010
Spec D LED Headlights (Chrome): Dodge Charger 2005 - 2010

Spec D LED Headlights (Chrome): Dodge Charger 2005 - 2010

Spec D

Regular price $162.00 $150.00 7% off

Unit price
per 

Spec D LED Headlights (Chrome): Jeep Grand Cherokee 1999 - 2004
Spec D LED Headlights (Chrome): Jeep Grand Cherokee 1999 - 2004
Sold out

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

Spec D

Regular price $188.00 $139.00 26% off

Unit price
per 

Spec D LED Headlights (Smoke): Chrysler 300 2005 - 2010
Spec D LED Headlights (Smoke): Chrysler 300 2005 - 2010

Spec D LED Headlights (Smoke): Chrysler 300 2005 - 2010

Spec D

Regular price $213.00 $158.00 26% off

Unit price
per 

Spec D LED Headlights (Smoke): Dodge Charger 2006 - 2010

Spec D

Regular price $203.00 $150.00 26% off

Unit price
per 

Spec D LED Headlights (Smoke): Jeep Grand Cherokee 1999 - 2004
Spec D LED Headlights (Smoke): Jeep Grand Cherokee 1999 - 2004

Spec D LED Headlights (Smoke): Jeep Grand Cherokee 1999 - 2004

Spec D

Regular price $219.00 $162.00 26% off

Unit price
per 

Spec D LED Headlights (Smoke, Version 2): Chrysler 300 2005 - 2010
Spec D LED Headlights (Smoke, Version 2): Chrysler 300 2005 - 2010
Sold out

Spec D LED Headlights (Smoke, Version 2): Chrysler 300 2005 - 2010

Spec D

Regular price $347.00 $257.00 26% off

Unit price
per 

Spec D LED License Plate Lamp (Clear): Dodge Ram 2003 - 2018
Spec D LED License Plate Lamp (Clear): Dodge Ram 2003 - 2018
Sold out

Spec D LED License Plate Lamp (Clear): Dodge Ram 2003 - 2018

Spec D

Regular price $27.00 $20.00 26% off

Unit price
per 

Spec D LED License Plate Lamp (Smoke): Dodge Ram 2003 - 2018
Spec D LED License Plate Lamp (Smoke): Dodge Ram 2003 - 2018
Sold out

Spec D LED License Plate Lamp (Smoke): Dodge Ram 2003 - 2018

Spec D

Regular price $30.00 $22.00 27% off

Unit price
per 

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

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

Spec D

Regular price $902.00 $668.00 26% off

Unit price
per 

Spec D LED Projector HeadLights (Black): Dodge Dakota / Durango 1997 - 2004
Spec D LED Projector HeadLights (Black): Dodge Dakota / Durango 1997 - 2004
Sold out

Spec D LED Projector HeadLights (Black): Dodge Dakota / Durango 1997 - 2004

Spec D
5.0 (4)

Regular price $224.00 $166.00 26% off

Unit price
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