CMC Outboard Motor Transom Pads/Support Plates

CMC Transom Support Plates: Precision Protection for Your Outboard Setup

When you mount a high-performance outboard motor to your boat, the transom takes on enormous stress — from hard launches and high-speed runs to constant vibration and torque. That's where CMC Marine steps in with purpose-engineered transom support plates designed to reinforce the connection between your engine and your hull.

Outboard motor transom pads and support plates may not be the most glamorous component on your boat, but they play a critical structural role. Without proper load distribution at the transom, mounting bolts can bite into the fiberglass or wood, causing long-term damage that is costly to repair. CMC addresses this directly: their machined transom washer/support plates are specifically designed to eliminate bolts "biting" into transoms and to more evenly distribute loads on high-performance engines.

What Sets CMC Transom Support Plates Apart

CMC Marine Products is proudly part of the T-H Marine family, one of the largest manufacturers of recreational boating accessories in the world. CMC is the company that originated and pioneered self-contained hydraulic jack plates, and has been leading the way with its patented Power-Lift hydraulic jack plates for more than thirty years. That same commitment to precision engineering carries directly into their transom hardware line.

CMC offers both an Upper and Lower Transom Support Plate, giving boaters the ability to fully reinforce both mounting points on the transom for a complete, matched solution. Key features of CMC's transom support plates include:

• 6061 T6 alloy aluminum construction — made of strong 6061 T6 alloy aluminum (not cast aluminum), these transom plates eliminate bolts biting into transoms and can more evenly distribute loads on high performance engines.
• Machined precision — CMC Marine utilizes only the finest machinery for greater precision and speed, allowing the company to manufacture high-quality products that provide many years of problem-free service.
• Versatile fitment — CMC's transom hardware fits all transom jacks, jack plates, outboard lifts, tilt trim units, and outboard motors with a standard B.I.A. bolt pattern.
• Thorough quality testing — CMC testing procedures are implemented on all parts in order to meet all necessary requirements before any single unit is packaged for shipping.

Why Transom Support Plates Matter for High-Performance Outboards

The forces at play when a high-horsepower outboard engine launches a boat out of the hole — or runs at wide-open throttle — are substantial. Transom support plates add strength to a boat's transom by evenly distributing forces during fast starts, high-speed runs, and demanding conditions. Using a quality machined plate like those offered by CMC is a straightforward, cost-effective way to protect one of the most important structural areas of your boat.

Whether you're upgrading an existing setup or reinforcing a fresh engine installation, CMC's transom support plates are a trusted choice among bass boaters, offshore anglers, and performance enthusiasts alike. Explore the full CMC Marine brand page to discover their complete lineup of jack plates and marine hardware, or browse all outboard motor transom pads and support plates to compare options across top manufacturers.