About 1DMI - Electrical Surplus

Who we are

1DMI - Electrical Surplus is the online store of 1DMI LLC, a Wyoming limited liability company based in Sheridan, Wyoming. We are motor-control specialists: we stock and ship the replacement parts that keep industrial motor control, HVAC, and chiller equipment running. Everything we sell is listed with a real photo, a real part number, and a price you can buy online or by phone.

What we sell

• Contact kits — aftermarket replacement kits, plus genuine OEM (new surplus) where available.
• Coils, contactors, armatures and magnets for motor starters and contactors.
• Trane chiller rebuild kits — the complete contact kit, coil, armature and magnet bundle to rebuild a chattering contactor in one teardown.
• MCC buckets — professionally reconditioned and new-surplus units.
• Dry-type transformers — reconditioned and surplus, freight included.

How we work

We are an independent surplus and aftermarket supplier. We source, recondition, and stock parts so they are on the shelf when your equipment is down, not on a multi-week factory lead time. Aftermarket parts are built to meet or exceed OEM specifications; reconditioned parts are cleaned, rebuilt, and bench-tested before they ship.

• In stock and shipped fast — most contact kits ship the same business day when ordered before 1:00 PM ET.
• Guaranteed to fit — verify your part number with us and we will confirm fit before you order.
• Backed by warranty — a 1-year warranty on aftermarket and reconditioned parts.
• Quotes in 1 hour or less — call or email and we will get you a price and lead time.

Independence & trademarks

1DMI LLC is not affiliated with, and is not an authorized distributor of, Eaton, Cutler-Hammer, Trane, Square D, or any other manufacturer listed on this site. We offer third-party, aftermarket, and reconditioned solutions. Manufacturer names, model numbers, and part numbers are used for identification and cross-reference only, and all trademarks are the property of their respective owners.

Contact us

Prefer to talk it through? Visit our contact page and we will help you find the right part.