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Bennett 6BT-50005-78-00 Hydraulic Actuator Upper Hinge with O-Ring

Manufacturer

Bennett

<h3>Bennett Marine: Six Decades of Trim Tab Innovation</h3><p><strong>Bennett Marine</strong> has been synonymous with precision boat handling since 1960, when founder Charles Bennett invented the first adjustable trim tab system and permanently changed the way recreational and performance boats operate on the water. Based in Deerfield Beach, Florida, the company has grown into the world's largest manufacturer of trim tab systems, with millions of units installed on vessels ranging from small skiffs to large offshore cruisers.</p><p>Trim tabs are mounted on a boat's transom and work by adjusting the running angle of the hull — reducing bow rise, correcting listing caused by uneven weight distribution, improving visibility, and delivering meaningful gains in fuel efficiency and ride comfort. Whether you're battling rough offshore chop or simply trying to keep your runabout on plane at moderate speeds, a properly sized and tuned trim tab system makes a measurable difference.</p><h3>A Product Lineup Built for Every Vessel</h3><p>What sets Bennett apart is the breadth and depth of its <a href="/6724-bennett-bennett-trim-tabs-accessories-201695">trim tab systems and accessories</a>. The lineup is organized around three core technologies, each suited to different boat types and operator preferences:</p><ul><li><strong>Classic Hydraulic Systems</strong> — Bennett's original hydraulic trim tabs remain the industry standard for larger boats over 25 feet. Powered by an onboard hydraulic power unit (HPU), these systems deliver robust, reliable performance and are a factory-installed choice for many of the world's top boat builders.</li><li><strong>BOLT Electric Trim Tab Systems</strong> — A modern all-electric alternative, the BOLT series uses watertight nylon actuators that require no hydraulic fluid or hoses, making installation faster and significantly cleaner. The BOLT is especially popular on boats under 25 feet where routing hydraulic lines can be challenging.</li><li><strong>Self-Leveling Trim Tabs (SLT)</strong> — A passive, non-powered solution designed for smaller vessels like RIBs, skiffs, and runabouts. SLT tabs automatically adjust to hull dynamics without any electrical or hydraulic input, offering an accessible entry point to improved performance.</li></ul><p>Rounding out the range is the <strong>AutoTrim Pro</strong>, an intelligent automatic control system that functions like cruise control for your trim tabs — continuously reading speed and sea conditions to adjust tab angle and keep the hull perfectly level. It also includes automatic tab retraction when the engine shuts off, protecting the system from accidental damage.</p><h3>Trim Controls: The Helm Side of the Equation</h3><p>A great trim tab system is only as good as its control interface. Bennett's <a href="/6724-bennett-trim-controls-202682">trim controls</a> are engineered to pair seamlessly with their hydraulic and electric actuator systems, giving operators precise, responsive command from the helm. Options range from simple rocker switches to advanced integrated helm panels with LED position indicators and NMEA 2000 network compatibility — so your trim data can be shared across your vessel's electronics suite.</p><h3>Trusted by Builders and Boaters Worldwide</h3><p>Bennett's reputation rests not just on engineering, but on longevity. It's common to find original Bennett hydraulic systems still functioning flawlessly on boats from the 1980s and 1990s — a testament to the build quality and corrosion resistance engineered into every component. That durability is backed by an industry-leading warranty and a customer support team that boat owners frequently cite as exceptional. Explore the full range of <a href="/6724-bennett-bennett-trim-tabs-accessories-200158">Bennett trim tab kits and replacement parts</a> to find the right system for your hull, engine configuration, and boating style.</p>

Part Number

6BT-50005-78-00
07/13/2036 11:20 PM
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$17.77

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Product Details

The Bennett A1103 Upper Hinge (part number 6BT-50005-78-00) is a critical replacement component designed for Bennett hydraulic trim tab actuators. This upper hinge assembly features an integrated O-ring seal and serves as a key connection point in the hydraulic actuator system.

Key Features:

  • Genuine Bennett replacement part for hydraulic actuator assemblies
  • Includes O-ring seal for proper hydraulic fluid containment
  • Internal hydraulic line design eliminates external hoses subject to damage
  • Compatible with Bennett A1101 standard length actuator assemblies
  • Hydraulic fluid flows through concealed passage in the upper hinge
  • Identified as position #18 in Bennett actuator assembly diagrams

This upper hinge is engineered specifically for Bennett's proven hydraulic trim tab systems, which are known for their durability and maintenance-free operation. The integrated fluid passage design reduces external hydraulic lines, minimizing potential leak points and protecting against damage in harsh marine environments. Essential for maintaining optimal trim tab performance and proper hydraulic system function.

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Very fast delivery of the correct product at a reasonable price. I'm happy.

I received my order in 2 days. I couldn't believe it. I would order from them again.

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Ordered Online and it showed that the product was in stock. I received an order acknowledgment then also received another email stating the product was backordered. Called CS and they assured me the product was in stock and would ship w/in 24hrs of the order date. It actually did ship the next day and I received the product 2 days later.

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