Product Overview
The SeaStar Steering Kit, No Feedback, 20' Medium Red, model CH5300P, is designed to provide reliable and smooth control for your marine vessel. This kit includes the main control unit and necessary accessories for installation. SeaStar Solutions has been a leader in marine control systems for decades, ensuring safety and performance for boaters.

Image: The SeaStar MT3 Twin Control unit with its accompanying installation hardware, including bolts, nuts, washers, and cable ends.
Important Safety Instructions
Always prioritize safety when installing, operating, or maintaining marine equipment. Failure to follow these instructions could result in serious injury or damage to your vessel.
- Ensure the engine is turned off and the battery is disconnected before performing any installation or maintenance.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection.
- Verify all connections are secure and properly tightened before operating the vessel.
- Regularly inspect control cables and connections for wear, corrosion, or damage. Replace components as needed.
- If you are unsure about any part of the installation or maintenance process, consult a qualified marine technician.
Package Contents
Verify that all components listed below are included in your SeaStar Steering Kit package:
- SeaStar MT3 Twin Control Unit
- Mounting Hardware (various bolts, nuts, washers)
- Cable End Connectors (red and black)
- Cotter Pins and Clips
- Forward/Neutral/Reverse Decals

Image: Detailed view of the various small parts and hardware included with the SeaStar control kit, essential for proper installation.
Setup and Installation
Proper installation of your SeaStar Steering Kit is crucial for safe and effective operation. This section provides guidance on key steps, including checking existing controls and measuring for new cables.
Pre-Installation Control Check
Before beginning any work, test your existing shift and throttle controls. They should move easily in both forward and reverse positions. If they feel stiff or are locked up, it indicates a potential issue with the control cables or the control unit itself. The following video provides a comprehensive guide on assessing and measuring control cables.
Video: This official SeaStar Solutions technical training video demonstrates how to measure and assess shift and throttle control cables, including identifying part numbers and proper routing.
Identifying Control Cable Part Numbers
If your control cables are stiff, you may need to replace them. Old Teleflex and new SeaStar Solutions cable part numbers typically start with "CC" or "CCX" followed by five numbers. The first three numbers indicate the cable type, and the last two indicate the length in feet. For Morse cables, the part number starts with a single letter, followed by five or six digits, a dash, one to three digits, another dash, and then the cable length in feet and inches.
Measuring Control Cable Length
If the part number is unreadable, measure the old cable from tip to tip and round up to the nearest even foot. For new installations, measure from the middle of the control unit directly to the throttle lever/transmission control, following the best path with as few and large sweeping bends as possible (minimum 8-inch radius). Add 4 feet to this measurement to create a loop in front of the outboard, allowing for engine movement without damaging cables. This process is easier with a helper.
Cable Routing Considerations
- For inboard and inboard/outboard vessels, control cables may be two different lengths.
- For outboards, control cables will typically be the same length.
- If your boat has a rigging tube, the cable loop may be below the splashwell deck, and the cable will come to the engine through that rigging tube.
Reusing Cable Ends
Most of the time, the original cable ends can be reused. However, if they appear worn or damaged, it is recommended to replace them as well to ensure optimal performance and safety.
Operation
The SeaStar MT3 Twin Control unit provides precise control over your boat's throttle and shift functions. The two levers operate independently, allowing for fine adjustments to speed and direction.
- Shift Control: Move the lever forward for forward gear, and backward for reverse gear. The neutral position is in the middle.
- Throttle Control: Once in gear, further movement of the lever in the same direction will increase engine RPM.
- Ensure smooth and deliberate movements of the levers to avoid sudden changes in speed or direction.
Maintenance and Care
Regular maintenance will extend the life and ensure the reliable operation of your SeaStar Steering Kit.
- Cleaning: Clean the exterior of the control unit with mild soap and water. Avoid abrasive cleaners or solvents.
- Inspection: Periodically inspect all visible parts of the control unit and cables for signs of wear, corrosion, or damage. Check for loose fasteners.
- Lubrication: Consult your engine and control unit manuals for specific lubrication points and recommended lubricants.
- Cable Condition: Ensure control cables are free from kinks, sharp bends, or excessive friction. Replace if movement becomes stiff or erratic.
Troubleshooting Common Issues
This table outlines common issues you might encounter with your control system and potential solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Stiff or hard-to-move control levers | Corroded or worn control cables; stiff engine/transmission linkage; worn control unit mechanism. | Disconnect cables at engine/transmission and test control. If still stiff, remove cable from control and test cable. Replace worn cables or lubricate linkages. |
| Delayed or unresponsive shifting/throttle | Excessive friction in cables; improper cable length or routing; worn cable ends. | Inspect cable routing for sharp bends. Check cable ends for wear. Replace cables if necessary. Ensure proper cable length. |
| Control levers feel loose or have excessive play | Loose mounting hardware; worn internal components of the control unit. | Check and tighten all mounting bolts. If play persists, internal components may be worn and require professional inspection or replacement. |
Product Specifications
| Specification | Detail |
|---|---|
| Item Package Dimensions (L x W x H) | 19.1 x 8 x 6.8 inches |
| Package Weight | 10.4 Pounds |
| Item Dimensions (L x W x H) | 18 x 6.5 x 8 inches |
| Brand Name | SeaStar |
| Country of Origin | United States |
| Model Name | Control, MT3 Twin w/Sw |
| Color | Red, Silver |
| Number of Items | 1 |
| Manufacturer | SEASTAR SOLUTIONS |
| Part Number | CH5300P |
| Included Components | Control, MT3 Twin w/Sw |
| Size | Medium |
Warranty Information
This SeaStar Steering Kit comes with a limited warranty. Please refer to the warranty card included in your product packaging or visit the official SeaStar Solutions website for full details regarding coverage, terms, and conditions.
Technical Support
For any technical questions, installation assistance, or troubleshooting beyond the scope of this manual, please contact SeaStar Technical Support.
Phone: 610-495-7011
(Please have your product model number and any relevant details ready when you call.)