Miscellaneous

Engine conversions often require small but critical supporting parts that don't fit neatly into major categories—adapters, fittings, brackets, hardware, and accessories that bridge mismatches between your new Caterpillar, Cummins, or Detroit Diesel powerplant and the existing chassis. Kustom Truck Parts' miscellaneous conversion parts category stocks these essential items to help you complete the build seamlessly in Kenworth, Peterbilt, Freightliner, and Western Star trucks.

We specialize in solving these conversion challenges with parts tailored for heavy-duty applications. If it's not listed, browse our full assembly and conversion catalog or reach out—our team can recommend the right solution for your specific engine/chassis combo.

Browse below for miscellaneous conversion parts that make your project road-ready. Pair with our engine harnesses, mounting brackets, or fuel plumbing for a complete setup. Need help finding a hard-to-source adapter or confirming fitment? Contact us—we're here to help.