Contact Us

How to Find a Part

If you know the part number you are looking for, please try the Search function first before contacting us! Everything we list on this site is usually in stock.

Contact Form

Contact us here for technical advice, or to inquire about the status of an order or return.

Please note that we do not offer sales support or technical support by phone. We do not publish a phone number, to help keep our costs down. All contact is through this form or by email. If you have an inquiry, make your message to us as specific and detailed as possible. If you are asking about an order, always give the order number.

If you have registered with us you can Login to view the status of current and past orders.

If you have a question about parts for a transducer, please find the white plastic label on the transducer cable and include the information from that label in your message. The most important items of information on the label are the the transducer model and the part number (PN).

Examples of transducer labels

Label for a model P79 transducer with PN 31-247-1-01. This transducer operates at 235kHz and was made in August 2014 (08/14). It was made for Faria equipment and the Faria part number is P79-235-FARIA.

Label for a model P32 transducer with PN 31-333-2-41. This transducer operates at 200kHz and was made in June 2015 (06/15). It was made for VDO equipment and the VDO part number is P32/200-VDO.

Reverse of label showing item serial number.


The number 20-399-01 on the top of this transducer is the part number of the top cap only and is NOT a valid transducer part number. It does not help identify the transducer.