Custom Cable Harness Services


High-Tech Excellence custom cable harness designed to improve our customer’s bottom line

SDI is the premier manufacturer of custom cable harnesses for the construction, agricultural, trucking, electronic, research, recreational, marine and auto racing industries

We build to our customer’s specifications, including using UL and RoHS compliant components. Additionally, Sheyenne Dakota Inc. electronically tests and visually inspects every single harness manufactured and we are proud of our reputation of making on-time deliveries of fault-free assemblies.

  • As a member of the Wire Harness Manufacturers Association, SDI follows the IPC/WHMA-A-620 Requirements and Acceptance for custom cable harness assemblies standards.
  • State-of-the-art wire processing equipment insures durability and longevity of our custom cable harness assemblies.
  • Specialized engineering software for complex custom cable harness systems.

However, the heart and soul of SDI is our PEOPLE. They are highly trained, experienced, and possess an exceptionally strong work ethic. It’s this combination of gifted and talented people with innovative production techniques that makes SDI a true industry leader.


Part Quantaties Produced: We can produce a wide range of production quantities to fulfill your requirements.
Part Dimensions (min/max): Cable harnesses ranging from inches to hundreds of feet.
Acceptable Drawing File Formats: PDF, JPG, JPEG, BMP, TIF, TIFF, DXF, DWG, GIF, PCX, WPG
Tolerances Achieved: Our state of the art equipment can maintain strict tolerances.
Quality Control: Sheyenne Dakota has an exceptional testing procedure.  In addition to checking the harnesses against both the customer’s and Sheyenne Dakota’s engineering drawings, the harnesses are inspected through out production then tested on Dynalab NX Testing equipment ONLY AFTER the harness has been completed.  Each harness is then visually inspected to ensure it is in compliance.

  • Our commitment to quality:  We’ve worked hard to achieve our reputation for delivering cost-efficient, fault-free assemblies and have received numerous Quality Awards.  However, our most important award is the loyalty and trust of our clients.
  • Our commitment to technology:  From advanced, computerized order processing to state-of-the-art assembly automation, SDI offers you the most advanced cable and wire harness products available.
  • Our commitment to you:  We will meet any and all production requirements with guaranteed customer satisfaction, on-time delivery and on-budget.
Professional Associations: WHMA®  The Wiring Harness Manufacturer’s Association®
WHMA Custom Cable Harness

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