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Industry-Only Lifetime Warranty  

10% Discount for Military & First Responders

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Duramax Harnesses and PCMs
Ovid, MI

Shipping Available Worldwide  

Industry-Only Lifetime Warranty  

10% Discount for Military & First Responders

Hours:

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Hero Request Form

Precision-Built Duramax Harnesses and PCMs for Custom Builds

Planning a Duramax swap means you need harnesses and PCMs that work perfectly from day one. Swap Specialties in Ovid, MI creates custom diesel wiring solutions designed for your specific build, with shipping available worldwide. We've built over 15,000 harnesses and tuned more than 1.35 million horsepower across 36 different platforms. Our products include:

  • Custom Duramax engine harnesses
  • Programmed PCMs ready to install
  • Complete wiring kits for diesel swaps
  • Standalone harness options
  • Plug-and-play solutions

Swapping a Duramax into a truck, SUV, or custom build requires the right wiring setup. Reach out to us and let's get your project wired right.

Your Duramax Swap Deserves Reliable Wiring
Diesel swaps come with unique challenges, and the wiring is often the most critical component. If you're in Ovid, MI and surrounding areas, you know that a Duramax engine needs precise electronic communication between the PCM and every sensor, injector, and system component. Here's why proper harnesses and PCMs matter for your build:
  • Eliminates unnecessary wiring and modules
  • Ensures proper fuel injection timing
  • Maintains diagnostic capabilities
  • Prevents check engine lights and performance issues
  • Allows for custom tuning options

Every Duramax swap is different, which is why we offer custom solutions rather than generic products. Our harnesses simplify your installation while maintaining full functionality.
Why Choose Swap Specialties
With 25 years of experience and operations since 2016, Swap Specialties stands behind every harness and PCM we build. We're the only company offering truly custom wiring solutions for Duramax swaps, and we back it up with benefits you won't find anywhere else. All our products are made right here in the USA with components you can trust:
  • Industry-only lifetime warranty on all harnesses
  • 10% discount for military personnel and first responders
  • Store credit available for exchanges
  • Out-of-stock items available by special order
  • Worldwide shipping available

We've supported 36 different platforms including HEMI, LT Gen V, LS Gen 3 & 4, Ecotec, 3800, and Coyote builds. When you choose us, you're choosing proven reliability backed by real-world results.
Contact Us

Ready to get your Duramax swap project moving forward? Our team in Ovid, MI has the knowledge and experience to guide you through the process and ensure you get exactly what your build requires. We'll work with you to understand your specific application and create a solution that fits perfectly. Contact us today and let's discuss your Duramax wiring needs.

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