Detroit Diesel Engines & Parts

Kustom Truck Parts specializes in factory remanufactured Detroit Series 60 engines and dedicated parts for heavy-duty truck conversions, repowers, or replacements—delivering reliable, emissions-compliant performance in Kenworth, Peterbilt, Freightliner, and Western Star chassis.

Our inventory centers on the proven Series 60 platform (12.7L and 14.0L) with DDEC3, DDEC4, and DDEC5 electronics:

  • Genuine Detroit Factory Reman Engines — Sold outright with no core return required. Each complete base engine includes:
  • Turbo group with manifold
  • ECM
  • Jake brakes
  • Air compressor
  • Thermostats
  • Fuel pump and transfer pump
  • Water pump
  • Oil cooler
  • Supporting Detroit-Specific Parts — Engine harnesses, throttle pedal kits, fuel line plumbing, harness repair kits, and more to ensure full integration from ECM to drivetrain.

These reman engines offer OEM-spec rebuilds, long-term durability, and cost-effective power for demanding applications—ideal for conversions or upgrading tired originals.

Browse below for your DDEC version, displacement, and related parts. Need help matching to your chassis or confirming compatibility? Contact our team for expert guidance on your Detroit Series 60 build.

Frequently Asked Questions

Which Detroit Diesel engine series are available?

We specialize in the Detroit Series 60 DDEC3, DDEC4, and DDEC5 engines, with parts, assembly kits and factory reman engines to support rebuilds, conversions and diagnostics.

What modifications are required when performing a Detroit engine retrofit or conversion?

Common upgrades include new mounts, wiring harnesses, and ECM configurations. Kustom Truck Parts offers complete kits and support to ensure the conversion is smooth and compatible with your truck’s systems.

Does Kustom Truck Parts provide complete conversion kits for Detroit engines?

Yes. We offer comprehensive kits that include electronic interface, brackets, piping kits and engine upfit for a complete installation—reducing guesswork and installation time.

Are parts for older Detroit engines still available?

Yes, we support the Series 60 DDEC3 and newer platforms. Our sourcing network ensures genuine OEM Detroit parts.
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