Bennett 12x9 BOLT System w/Adjustable Upper Hinge

The 12x9 BOLT System with Adjustable Upper Hinge by Bennett Marine is designed to enhance your boat's performance by optimizing the running angle. Engineered with precision, this trim tab system helps your vessel get on plane faster, correct listing, improve visibility, and boost overall efficiency and control.

Key Features

• Achieve rapid planing to enhance bow visibility
• Boost vessel performance and fuel efficiency
• Stabilize and correct listing (roll) for a smoother ride
• Adjust boat attitude seamlessly in response to speed changes, sea conditions, and shifting loads
• Eliminate porpoising (rhythmic bouncing) for enhanced stability
• Compatible controls sold separately

Choosing the Right Trim Tab Size

Selecting the appropriate trim tab size is crucial for maximizing performance. Generally, the widest span tabs that fit on your transom will provide the most effective lift due to increased surface area. While a 9” chord tab is typically recommended, adjustments may be necessary based on your transom space. Options include shorter or longer chord tabs, or specially shaped tabs with upfins or dropfins to suit specific boat configurations.

As a general guideline:

Boat Maximum Speed	Recommended Trim Tab Span per Side
Up to 40 MPH	At least 1 inch per foot of boat length
Over 40 MPH	Consider our Performance or Premier Line high-performance systems

For example, a 22′ boat would utilize a 24”x9” trim tab system.

Specifications

Specification	Details
Construction	Stainless Steel
Actuator Type	Electro-Mechanical
Box Dimensions	6" H x 14" W x 15" L
Weight	19.85 lbs

Product Videos

Return Policy

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.