Product Overview
The innovative Attwood Heavy Duty Transom Saver helps lessen stress on a boat’s transom when a boat with an outboard motor is being transported on a trailer. This Heavy Duty Transom Saver offers reliable support for the cantilevered engine and comes with a choice of mounts for the end attached to the trailer. The heavy duty head securely holds the engine, while you can use your choice of the roller bracket or trailer mount bracket at the trailer end. The Transom Saver is adjustable from 24 to 36 inches for the best fit and fullest support. This Transom Saver features durable, rugged construction, and the rubber pads on the heavy duty head are replaceable.
Key Features:
- Innovative Transom Saver helps lessen stress on a boat’s transom when boat with an outboard motor is being trailered.
- Reliably supports the cantilevered engine during transport.
- Comes with a choice of mounts for the end attached to the trailer: roller bracket or trailer mount bracket.
- Heavy duty head securely holds the engine.

Figure 1: Attwood SP-4000-ADJ-RB Heavy Duty Transom Saver showing the main adjustable bar, heavy-duty head, roller bracket, trailer mount bracket, pin, and rubber strap.
Components and Adjustability
The Transom Saver is designed for versatility, featuring an adjustable length to accommodate various boat and motor configurations. It includes two primary mounting options for the trailer end: a roller bracket and a trailer mount bracket.

Figure 2: Different head and bracket types available for Attwood Transom Savers. This model includes the Heavy-Duty Head and both Roller and Trailer Mount brackets.

Figure 3: The adjustable bar features multiple pre-drilled holes, allowing for precise length adjustment to ensure optimal support for your outboard motor.

Figure 4: Guide for measuring the appropriate length for your transom saver, ensuring proper fit and function.
Setup and Installation
- Select the Appropriate Mount: Determine whether to use the roller bracket or the trailer mount bracket based on your trailer's design. The roller bracket is suitable for trailers with a rear roller, while the trailer mount bracket attaches directly to the trailer frame.
- Adjust Length: Position the transom saver between the outboard motor's lower unit and the selected trailer mount point. Adjust the length of the transom saver using the adjustment holes and securing pin until it provides firm, stable support for the motor. The adjustable range is 24 to 36 inches.
- Secure the Head: Place the heavy-duty head securely around the lower unit of the outboard motor. Ensure the rubber pads make full contact to prevent scratching and provide a non-slip grip.
- Attach to Trailer: Secure the chosen bracket to your trailer. For the roller bracket, ensure it rests firmly on the roller. For the trailer mount bracket, bolt it securely to the trailer frame as per the instructions provided with your trailer.
- Final Check: Before transport, verify that the transom saver is firmly in place, the motor is stable, and there is no excessive movement.

Figure 5: The Attwood Transom Saver fully assembled, demonstrating its robust construction and readiness for installation.

Figure 6: Detail of the heavy-duty head, highlighting the durable rubber pads designed to protect the outboard motor's finish and provide secure grip.
Operating Instructions
The Attwood Heavy Duty Transom Saver is designed to be used during the transport of your boat on a trailer. Its primary function is to absorb road shock and vibrations, preventing undue stress and potential damage to your boat's transom and outboard motor.
- Always ensure the transom saver is properly installed and securely fastened before beginning any travel.
- Regularly check the adjustment and connections during long trips to ensure continued stability.
- Remove the transom saver before launching or retrieving your boat from the water.
Maintenance
To ensure the longevity and effective performance of your Attwood Transom Saver, follow these maintenance guidelines:
- Cleaning: After each use, especially in saltwater environments, rinse the transom saver with fresh water to remove salt, dirt, and debris. Dry thoroughly to prevent corrosion.
- Inspection: Periodically inspect all components for signs of wear, damage, or corrosion. Pay close attention to the heavy-duty head, rubber pads, adjustment holes, and mounting brackets.
- Rubber Pads: The rubber pads on the heavy-duty head are replaceable. If they show signs of significant wear, cracking, or loss of grip, replace them promptly to maintain optimal protection for your motor.
- Fasteners: Check that all bolts, nuts, and pins are tight and secure. Tighten any loose fasteners as needed.
- Storage: When not in use, store the transom saver in a clean, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your Attwood Transom Saver, consider the following common troubleshooting steps:
- Motor Still Moves During Transport:
- Ensure the transom saver is adjusted to the correct length for a snug fit.
- Verify that the heavy-duty head is properly seated on the outboard motor's lower unit.
- Check if the rubber pads are worn and need replacement.
- Confirm that the trailer mount bracket or roller bracket is securely attached to the trailer.
- Difficulty Attaching/Detaching:
- Ensure the motor is trimmed to the correct height for easy installation/removal.
- Check for any obstructions or debris preventing smooth attachment.
- Corrosion or Rust:
- Ensure proper cleaning and drying after each use, especially in marine environments.
- Apply a marine-grade protective spray to metal components if operating in corrosive conditions.
If problems persist, contact Attwood customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | Attwood |
| Model Name | Attwood Boating Tools |
| Part Number | SP-4000-ADJ-RB |
| Style | Heavy Duty 24"-36" |
| Adjustable Length | 24 to 36 inches |
| Head Type | Heavy Duty Head (with replaceable rubber pads) |
| Mounts Included | Roller Bracket, Trailer Mount Bracket |
| Material | Heavy-strength aluminum (as per description) |
| Item Weight | 1 Kilograms |
| Item Dimensions L x W x H | 36.22 x 6.3 x 0.98 inches |
| UPC | 014599435693 |
Warranty and Support
Warranty: Please contact us if you experience any issues within 30 days of receipt.
For further assistance, technical support, or to inquire about replacement parts, please visit the official Attwood website or contact their customer service department. Always refer to the latest product information and safety guidelines provided by the manufacturer.

Figure 7: Product packaging for the Attwood Heavy Duty Transom Saver, displaying key features and product information.





