Raymarine Airmar ST300 “Shorty” Speed/Temp Replacement Insert for ST40 ST60 Etc

$79.99

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: 753836
In stock (2 available)
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    90-Day Warranty

Manufacturer: Raymarine / Airmar

Model Number: ST300

Series: Paddlewheel

Listed Item Condition: Used

Additional Notes: We are selling 2 ST300 inserts that came with a lot of boatbuilder’s overstock. These had a short length of cable (~3′) and proprietary molex connections and were presumably used for a particular brand of boat with a pre-made wire harness that this would mate up to. In order to test them for functionality, we cut these connections off and wired direct to an ST60 Speed Display. They’re fully functional. They don’t appear to have ever been on the water, but they have dust/dirt and silicone grease on the o-rings so we’re selling as used out of an abundance of caution.

This would be excellent for someone with a fouled up ST300 that wants to just yank the old out, install this, and splice into their existing hardness with watertight butt connectors or similar.

What’s Included:

  • ST300 Replacement Insert with 3′ Cable Attached – Tested/Working – Excellent Cond

Compatible Parts: ST-300 Speed/Temp Housings

Dimensions (L x W x H): 8 x 4 x 3 in, Weight: .9 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 .9 lbs
Dimensions 8 × 4 × 3 in
Categories Transducers & Sensors » Speed and Temp Sensors » Paddlewheel Transducers
QTY Available 2
Date Added Oct 31, 2025

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