Wedge-Shaped Plastic Transom Pad 20 mm (440 x 360 mm) for Outboard Engines

This wedge-shaped plastic transom pad (20 mm thick, 440 x 360 mm) is engineered to provide reliable support for your boat’s transom when mounting an outboard engine. Made from high-strength, UV-resistant polypropylene, it withstands prolonged exposure to sunlight and saltwater without degrading. Its textured non-slip surface prevents the engine brackets from sliding, ensuring a firm hold and safer operation of your boat even in choppy conditions.

What sets this model apart is its wedge profile – the thickness tapers from about 5 mm on one edge to 20 mm on the opposite edge. This angled design allows you to fine-tune the mounting angle of your outboard motor relative to the transom. The result is improved boat trim and optimized handling, especially on inflatable boats with vertical transoms or any vessel that needs an adjustment to the engine’s tilt angle for better performance.

By installing this pad between your engine bracket and the transom, you will:

• Protect the transom: The rigid plate spreads the clamping force of the motor across a wider area, preventing transom dents, fiberglass cracks, or wear on paint and finishes.
• Reduce vibrations: The polypropylene material absorbs some engine vibrations, which helps preserve the boat’s structure and provides a smoother, quieter ride.
• Improve mounting security: The anti-slip surface grips the motor clamps securely, minimizing any shifting or loosening of the engine even in waves or at high speeds.
• Adjust engine angle: The tapered pad offers roughly a 3–4° tilt, helping you achieve an optimal motor angle. This leads to better thrust alignment and can improve planing and fuel efficiency. It’s especially beneficial for small RIBs and motorboats (~3–5 m length) whose transoms will benefit from this trim correction for enhanced performance.

The pad is easy to install – simply place it between the outboard’s clamps and the transom when mounting the engine. The generous 440x360 mm size covers a large transom surface, suitable for boats with wide transom boards as well as providing maximum coverage on smaller craft. Note: This model comes in a white color (blending nicely with most transoms and hulls), and we also offer a black version for those who prefer to match darker transoms or a particular boat aesthetic.

Usage Recommendations: The 20 mm wedge transom pad is highly recommended for inflatable boats and RIBs where the factory transom angle is vertical – the pad’s incline gives your outboard motor a slight tilt that can improve overall performance and help the boat plane more easily. It’s also well-suited for small to mid-sized hard-hull boats (around 3 to 5.5 m in length) with outboard engines up to approximately 50–60 HP. In fact, any boat needing extra transom protection will benefit – this tough EVAL transom pad is universal and fits virtually all outboard brands and models. Installation requires no permanent modifications, giving you a quick solution to extend your transom’s life and enjoy safer, optimized boating.