Simrad Robertson J300x-40 22081954 Autopilot Course Computer

$399.99

This item is pre-owned and may exhibit signs of cosmetic wear, including scratches or scuffs; however, it is fully functional and operates as intended. Please note, it may not include all components originally provided by the manufacturer. The images displayed show everything included with this purchase.
SKU: 760261
In stock (1 available)
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    Free Shipping Lower 48

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    30-Day Returns

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    90-Day Warranty

Manufacturer: Simrad

Model Number: J300x-40

MPN: 22081954

Listed Item Condition: Used

Additional Notes:

This J300x-40 course computer is in great used working condition.

This unit was removed from a vessel being refit with new electronics.

DOES NOT INCLUDE A DISPLAY! It HAS been fully bench tested for Both NMEA Inputs, Both NMEA Outputs, rudder input, heading input, controller communication, and motor outputs. The software version is displayed on the screenshot, the autopilot display is not included. The autopilot screen (also not included) shows AP engaged, the Standby screen shows rudder and compass functionality, and the pictures are of the unit – every picture here is of this unit running. We don’t believe in stock pictures. We did test NMEA0183 comms are shown on both ports with a Furuno VX2.

This is not a complete autopilot, you will need several other components, this is just a replacement J300X-40 course computer for the systems below.

This is compatible with AP20, AP21, and AP22 control heads, as well as the AP3000x and AP11 systems.

If you’ve got a downed J300x-40 computer and need to get back up and running, look no further!

Thanks for looking!

What’s Included:

  • Simrad J300X-40 Autopilot Computer

Compatible Parts:

This is compatible with AP20, AP21, and AP22 control heads, as well as the AP3000x and AP11 systems.

Dimensions (L x W x H): 10 x 9 x 3 in, Weight: 8 lbs

Shipping Info: Free shipping applies to items being delivered within the contiguous United States (lower 48). HI, AK, PR, and all other US Territories, and International locations will have shipping calculated during checkout. Please be advised if the item is large or is a multi-piece shipment, shipping quotes may be inaccurate due to restrictions outside of our control, in those instances you will be contacted promptly.

Return Info: 30-Day Returns

Warranty Info: 90-Day Warranty

Terms:

All items sold at Max Marine Electronics come as you see in the pictures provided, with only the parts and accessories stated in the description section named “What’s Included”. IF YOU DO NOT SEE SOMETHING YOU EXPECT TO BE INCLUDED IN THE DESCRIPTION WE PROVIDE, IT WILL NOT BE INCLUDED. Read all descriptions thoroughly. There are times when a display is used only to show the item being sold is functional and working properly. In this case, these displays are not included. If you have any questions feel free to send a message or call Max Marine Electronics Inc, Pompano Beach, Florida. We always want to be transparent with our customers and fully disclose any information regarding the products we sell.

***PLEASE NOTE***Buyers outside the contiguous United States:
We strive to provide accurate shipping quotes at checkout. However, for satellites, radars, large items, or multi-piece shipments, system and carrier limitations may sometimes result in incorrect estimates. If this happens with your order, our team will reach out to you right away to ensure you receive the best possible shipping solution. Your satisfaction is our priority!

Additional information

Weight 8 lbs
Dimensions 10 × 9 × 3 in
Categories Autopilot » Course Computers & ECUs
QTY Available 1
Date Added Nov 19, 2025
Location

2002100

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