Bennett ST12 Trim Tab 12" x 12" Sport Tab System

Upgrade your performance boat with the Bennett ST12 Sport Trim Tab System, part number ST12, engineered and manufactured in Deerfield Beach, Florida.

Designed for offshore and recreational craft, these hydraulic dual‑acting trim tabs improve acceleration, hull attitude, and stability while reducing drag for better fuel efficiency.

Heavy gauge stainless steel construction resists corrosion, while fully concealed hydraulic lines protect actuators in harsh marine environments.

Compatible with a wide range of transoms, the ST12 system delivers rugged, offshore-ready attitude correction for cruising, fishing, and high-performance hulls.

Features & Benefits

• True dual‑acting hydraulic trim tab system for precise attitude control
• Heavy gauge stainless steel construction ensures strength, durability, and corrosion resistance
• Designed for performance boats and recreational craft requiring robust, high-speed attitude correction
• Sheared and bent trim tab plates eliminate weakened weld zones, preventing premature corrosion
• Hydraulic actuators feature through‑hull hydraulics to reduce external hose wear
• Hydraulic Power Unit (HPU) with water-resistant Lexan cover and visible fluid reservoir for easy inspection and increased durability

Performance Benefits

• Improves acceleration and gets your boat on plane faster with less throttle
• Maintains smoother running at intermediate speeds, reducing pounding and porpoising in chop
• Corrects listing and uneven weight distribution for safer, more stable handling
• Boosts visibility and safety by adjusting bow attitude on demand
• Optimizes hull performance for increased fuel efficiency and reduced drag

Durability & Design

• Trim tab plate size: 12" x 12"
• Fully concealed hydraulic system protects lines and actuators from marine exposure
• Compact Hydraulic Power Unit (approx. 4" x 7.5" x 5.5") runs on 12V and uses standard automatic transmission fluid
• Offshore-ready construction for harsh saltwater environments

What’s Included in the Box

• (2) Trim plane assemblies (12" x 12")
• (2–4) Hydraulic actuators (A1101ARC)
• (1) Hydraulic Power Unit (V351HPU1) with solenoid-valve control
• Hydraulic tubing and fittings
• Rocker switch control, wiring, and mounting hardware
• All installation hardware included for professional or DIY setup

Installation & Compatibility

• Field-serviceable installation compatible with a variety of transom types
• Typical installation time: 4–6 hours for a competent DIYer or professional installer
• Works with sport and performance hulls, offshore fishing boats, and recreational craft

Warranty & Support

• Bennett ST12 Trim Tabs carry a 5-year limited warranty against manufacturing and workmanship defects
• Electronics and control components carry a 3-year limited warranty
• Warranty does not cover damage from electrolysis or finish corrosion
• Expert customer support available for installation and troubleshooting

Quick Guide (pdf)
Owner's Manual (pdf)

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.