Solenoid Core Purchase Program

We make it fast and easy to return your solenoid cores!

  1. Collect Cores Ten or more cores is recommended.
  2. Contact Us We'll set up a Return Authorization for you.
  3. Ship Your Cores We pre-pay all shipping charges and provide labels.
  4. Get Paid! We'll send you a check in the mail.

Continental U.S. only.

Please review the following guidelines before returning solenoid cores:

  • Saving cores until you have ten or more is recommended, as this streamlines the process and expedites your return.
  • All shipments must have a Return Authorization in order to be processed. Shipping charges are paid by Sonnax.
  • Solenoids must be packaged in plastic bags before being placed in a box, to ensure any oil will not leak and create shipping issues with UPS.
  • Due to UPS shipping standards, please limit individual box weight to 75 lbs. This would be approximately 20 solenoids per box.
  • If you have a large quantity of solenoids and require more than one box, Sonnax will issue one return label for each box. If the shipment is too large for UPS, Sonnax will arrange for a common carrier to pick up.
  • Sonnax will issue a check within 60 days of the shipment being sent from your facility.
  • Unusable parts or parts not meeting the criteria will not be returned or credited.

We accept solenoid cores for the following applications:

Start the process by completing the form below.

Please fill in all fields before submitting the form.

You may also return solenoid cores by contacting us directly at (800) 843-2600, Ext. 379, Monday to Friday, 8:30 a.m to 5 p.m. ET.

Privacy Policy

Data Collection/Usage

Sonnax Transmission Company uses the personal information that it collects to provide you with information about our products and services. The Sonnax website collects the following data:

How We Get the Data What Data Why?
Automatically Data about which pages you visit on the Sonnax website and information from your browser such as your anonymized IP address. In order to analyze content performance and optimize the Sonnax online experience. This information also helps with troubleshooting errors.
User Submitted Contact Information & Consumer Communications The website allows you to request information from Sonnax. Website forms collect your information so we receive feedback and answer questions.
User Submitted Email Address and Preferences Users can opt-in to receiving email communications from Sonnax.

Sonnax takes data security seriously and maintains electronic and procedural safeguards to help protect your personal information. However, no system is 100% secure. In the event of a data breach, we will notify all those affected.

Third Party Disclosure

Sonnax does not sell, share or rent your data. We use the below third party services to store and utilize your data solely for the purposes outlined above.

Service Reason
Google Analytics To understand how users use the website. Only automatically collected data is sent.
Hotjar To understand how users use the website. Only anonymously collected data is sent.
Bronto Marketing Platform For email marketing.


Consent is required for Sonnax Transmission Company to process your personal data. By using this website you give Sonnax permission to process your personal data for the purposes outlined in this policy.

You may withdraw consent at any time by contacting Sonnax, at which time your personal information will be removed. You may ask to see what personal data we hold about you and be provided with a summary of such personal data and the details of the purpose for which it is being processed.