This page showcases the OTC DAIHEN K5374P / K5374P00 circuit board, a genuine spare part used in the XD500 welding machine. This board handles critical control functions, ensuring stable performance and reliable operation. Below you will find photos, specifications, and ordering information.


The K5374P (K5374P00) is a genuine OTC DAIHEN control circuit board designed for the XD500 welding machine. It manages power regulation, signal processing, and communication within the welder, ensuring consistent arc performance and reliable operation. Manufactured to OEM specifications, this board guarantees long‑term durability and exact replacement.
Part Numbers: K5374P / K5374P00
Description: Control circuit board for welding machine
Applicable Welder: OTC DAIHEN XD500
Origin: Japan – genuine OTC DAIHEN production
Using authentic OTC DAIHEN K5374P circuit boards ensures correct component ratings, reliable operation, and long‑term durability. Non‑OEM boards may cause erratic behavior or premature failure. As an authorized OTC DAIHEN distributor, we supply only 100% original, factory‑sealed parts.
We offer a full range of OTC DAIHEN equipment, original spare parts, and consumables. Contact us for welding machine boards, cables, controllers, and more.
For pricing, stock availability, or technical inquiries regarding the OTC DAIHEN K5374P circuit board, please contact us.
Phone / WhatsApp: +86-180-9663-1656
Email: ahojotc@gmail.com (preferred for detailed inquiries)
You are also welcome to connect on WhatsApp for technical discussions and knowledge sharing about OTC DAIHEN welding machines and robotic systems.
* For fastest response, please email ahojotc@gmail.com directly. Thank you.
Company: COMPANY:Authorized Distributor of OTC Daihen
Contact person: Contact:Mr.Fang
Mobile phone: Phone:+86-18096631656
Email address: Email:15305667776@163.com
Address: Add:Room 11-704, K Xijia, No. 502, Wangjiang West Road, Hefei, Anhui, China