# Z motor and wiring harness part no **URL:** \ **Category:** 📛 Others\ **Created:** [April 16, 2025, 12:31am UTC](https://forum.sienci.com/t/z-motor-and-wiring-harness-part-no/16919 "2025-04-16T00:31:28Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Megistus](https://forum.sienci.com/user_avatar/forum.sienci.com/megistus/32/1592_2.png) [@Megistus](https://forum.sienci.com/u/Megistus)\ **Post date:** [April 16, 2025, 12:31am UTC](https://forum.sienci.com/t/z-motor-and-wiring-harness-part-no/16919/1 "2025-04-16T00:31:28Z")
I need a replacement Z motor and wiring harness for a 2019 MK1 Longmill, as mine has a burned-out harness. Please direct me to the proper parts for 1 Z motor and 1 Z wiring harness. Also, I reversed the side on which the X drive is located, and I need the proper setting in the firmware to change. Your assistance would be very much appreciated. ---
**Author:** ![Spamming\_Eddie](https://forum.sienci.com/user_avatar/forum.sienci.com/spamming_eddie/32/7296_2.png) [@Spamming\_Eddie](https://forum.sienci.com/u/Spamming_Eddie)\ **Post date:** [April 16, 2025, 5:44am UTC](https://forum.sienci.com/t/z-motor-and-wiring-harness-part-no/16919/2 "2025-04-16T05:44:24Z")
Hey Wayne, You might not realize this, but we here at the forum are not sienci people. We are cnc owners, paying out of our own pocket to break stuff. You know, just like you. So, unless someone has spare parts lying around that fit your machine, we are not going to be able to offer much assistance. To get these components you must contact sienci somehow. I think opening a ticket and restate your quiry will get ya going. Here the contact page to do that. > **[Contact Us | Sienci Labs](https://sienci.com/contact-us/)** > > Hours and Location Our address is Unit 1D - 120 Randall Drive, Waterloo ON. N2V 1C6 Our regular business hours for calls and local pickup are: 9:30am – 4:30pm Eastern Time (ET) Monday to Friday. We are closed on all statutory holidays. Shop tours are... Ifmyou want to source the parts from a third party, you need to locate the correct part in the bom and find a provider that can deliver the same. Bom on every longmill version here: > **[Open source Hardware BOMs (Sienci Labs)](https://docs.google.com/spreadsheets/u/0/d/1MqOwPg3VSUTMtn3ff6rXjfvliAWnFqg8ez2eZasJLCE/htmlview?pli=1#)** ---
**Author:** ![Megistus](https://forum.sienci.com/user_avatar/forum.sienci.com/megistus/32/1592_2.png) [@Megistus](https://forum.sienci.com/u/Megistus)\ **Post date:** [April 16, 2025, 11:52am UTC](https://forum.sienci.com/t/z-motor-and-wiring-harness-part-no/16919/3 "2025-04-16T11:52:47Z")
Thank you for all the information. I will try the Contact Form again today. I hope Sienci gets it working. They told me by phone yesterday that the form wouldn’t accept pictures, but if you don’t add a picture, the form will not permit you to submit the request. Everybody have a great day. ---
**Author:** ![Spamming\_Eddie](https://forum.sienci.com/user_avatar/forum.sienci.com/spamming_eddie/32/7296_2.png) [@Spamming\_Eddie](https://forum.sienci.com/u/Spamming_Eddie)\ **Post date:** [April 16, 2025, 12:08pm UTC](https://forum.sienci.com/t/z-motor-and-wiring-harness-part-no/16919/4 "2025-04-16T12:08:41Z")
Hey Wayne, If contact form does not allow pictures/photos, maybe you can try email at [hi@sienci.com](mailto:hi@sienci.com) Or maybe the form works with another browser like chrome or firefox? Hope you can get trough. ---
**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\ **Post date:** [April 16, 2025, 12:20pm UTC](https://forum.sienci.com/t/z-motor-and-wiring-harness-part-no/16919/5 "2025-04-16T12:20:10Z")
@Megistus There are motors and cables on the Sienci store page. > **[NEMA 23 Motors and Cable for LongMill MK2 Sets | Sienci Labs](https://sienci.com/product/nema-23-motors-and-cable-for-longmill-mk2/)** > > These powerful NEMA 23 motors are used in the LongMill to provide precise movement on all axis. Each order comes with four motors with 5mm unthreaded mounting holes. There are four motors in total. For exact specifications, please look at the... You may not have seen them as they are on the Mk2 page. You can verify with Sienci, but I believe that they are the same as the Mk1 motors. ---
**Author:** ![Megistus](https://forum.sienci.com/user_avatar/forum.sienci.com/megistus/32/1592_2.png) [@Megistus](https://forum.sienci.com/u/Megistus)\ **Post date:** [April 16, 2025, 12:25pm UTC](https://forum.sienci.com/t/z-motor-and-wiring-harness-part-no/16919/6 "2025-04-16T12:25:06Z")
True enough, I also need the related wiring harness for the Z motor shipped, and its somewhat unclear if its included.