Description:
PROMT Parts Upper Transom Backing Plate – 110-215502P Black Powder Coat (Machined Aluminum)
Precision-machined from aircraft-grade aluminum plate for exceptional strength, lightweight durability, and long-lasting performance in NZ's marine environment — outperforming weaker cast alternatives.
This single upper plate reinforces your boat's transom by spreading outboard engine weight and bolt stress across a wider area, helping prevent cracking, flexing, or damage over time. Essential for repowers, jack plate installs, high-horsepower setups, or rough-water use.
Compatible with standard BIA boat mounting patterns on most outboard motors.
Key Benefits:
• Aircraft-grade aluminum construction – strong yet lightweight
• Even load distribution beyond individual bolts/washers
• Enhanced superior corrosion resistance with tough black powder coat
• Helps preserve transom integrity and boat longevity
• Sleek, modern black finish for a premium look
Also available in standard silver/natural machined (110-215502) for a clean, factory-style appearance.
Specifications:
• Part Number: 110-215502P
• Material: Aircraft-grade aluminum plate (machined)
• Finish: Black Powder Coat
• Thickness: 3/8” (0.375”) / 9.525 mm
• Height: 2.5” / 63.5 mm
• Width: 15.25” / 387.35 mm
• Bolt hole spacing (center-to-center): 12.875” / 327.025 mm
• Installation: Simple bolt-on