As engineers working on projects involving Sumitomo connectors, we found that little information was available and pricing was hard to come by in quantities below 100,000 pieces.  For that reason, Ballenger Motorsports, Inc. created the sourcing website

At, we specialize in locating difficult to find connectors, terminals and seals for a variety of applications. is NOT affiliated with Sumitomo Wiring Systems, Ltd in Japan or Sumitomo Wiring Systems Inc. in the USA .  If you would like to contact Sumitomo directly, please visit .

We stock many connectors and may be able to help you with the typical problem of manufacturers demanding unreasonable minimums for small projects.

Our sales staff is standing by to help you with any questions. Call us at (804) 915-7201 or email us at sales@bmotorsports.comWe also offer a purchasing interface online for select items.