Bennett Trim Tabs V351HPU2 Hydraulic Power Unit Review

The Honest Truth About the Bennett Trim Tabs V351HPU2 Hydraulic Power Unit

For anyone out on the water, particularly those who value optimal boat performance and handling, the ability to precisely control hull attitude is paramount. My own journey with trim tabs has been a long one, filled with tinkering and adjustments to dial in that perfect ride. The constant need for a reliable method to adjust these tabs led me to seek out a robust hydraulic power unit, and eventually, the Bennett Trim Tabs V351HPU2 Hydraulic Power Unit. This compact powerhouse is designed to be the heart of your trim tab system, generating the hydraulic pressure needed to smoothly raise and lower your tabs.

My previous system had begun to show its age, with a noticeable lag in tab response and occasional hesitation in holding position. It was during a particularly choppy passage that the need for an upgrade became undeniable; struggling with sluggish tabs while fighting a swell is a recipe for discomfort and potentially worse. This led me to research replacement power units, and while I briefly considered a more generic, off-brand option for cost savings, the reputation of Bennett Trim Tabs for marine systems kept drawing me back. The initial impression of this unit was one of solid engineering; it felt substantial, not flimsy, hinting at its capability to handle the demands of hydraulic actuation.

This unit arrived with a sense of understated competence, a far cry from the flashy marketing of some components. It was a straightforward, functional piece of equipment, and that’s precisely what I needed. The promise of a compact design that could still manage significant hydraulic pressure was particularly appealing, especially given the often-cramped spaces found in boat engine compartments.

First Use Experience

My testing ground for the Bennett Trim Tabs V351HPU2 Hydraulic Power Unit was, naturally, my own vessel. Installation involved integrating it into an existing trim tab system, and I found the process to be quite manageable. The unit itself is designed to be mounted easily with its sturdy bracket, and the connections for the hydraulic lines and electrical supply were clearly laid out.

The real test, however, came once we were underway. I took the boat out on a moderately active day, with a gentle chop and a light breeze, conditions that usually require constant trim tab adjustments. Immediately, the difference was palpable. The tabs responded with a swiftness I hadn’t experienced in years, moving up and down with smooth, decisive action.

The 24 volts power supply meant the unit operated with a reassuring steadiness, and I noted no hesitation even when making rapid adjustments. Even in slightly rougher patches, where the tabs are constantly working to counteract boat roll or porpoising, this hydraulic power unit held its ground admirably. The translucent reservoir was also a welcome addition; a quick glance allowed for an easy fluid level check, a simple but incredibly useful feature for routine maintenance.

Extended Use & Reliability

After several weeks of regular use, including longer trips and frequent adjustments for different sea conditions, the Bennett Trim Tabs V351HPU2 Hydraulic Power Unit has proven itself to be a workhorse. It has performed without a single hitch, maintaining consistent pressure and responsive actuation of the trim tabs. I’ve intentionally put it through its paces, making rapid up and down cycles to simulate aggressive trimming during maneuvers, and the unit has handled it all without complaint.

There are no visible signs of wear and tear that would concern me; no leaks around the solenoid valves, no degradation of the Lexan cover, and the pump operates just as smoothly as it did on day one. Compared to my previous unit, which developed a noticeable whine and a tendency to feel “bogged down” after a season, this Bennett unit feels significantly more robust. Maintenance has been minimal, essentially just keeping an eye on the fluid level in the reservoir and ensuring electrical connections remain clean and secure.

The automatic transmission fluid it uses is readily available, which is another practical consideration for long-term ownership. The ease of checking the fluid level at a glance, thanks to the translucent reservoir, means I can address any minor top-offs proactively, preventing potential issues before they arise. It’s this kind of thoughtful, practical design that sets reliable equipment apart.

Specifications

The Bennett Trim Tabs V351HPU2 Hydraulic Power Unit is a marvel of compact engineering, designed to deliver significant hydraulic force without taking up excessive space. Its core components include a robust pump, two precisely calibrated solenoid valves, and a built-in reservoir. The dimensions are quite manageable at 4″ x 7 1/2″ x 5 1/2″, making it suitable for a wide range of installations.

One of the key specifications is its operation on 24 volts, which is a common standard in many marine electrical systems, ensuring broad compatibility. The unit is constructed with durability in mind, featuring a protective Lexan cover that shields the electrohydraulic components from the harsh marine environment, including occasional wash downs. The translucent reservoir is a standout practical feature, allowing for immediate visual confirmation of the hydraulic fluid level.

This unit employs two solenoid valves to meticulously direct fluid flow to the trim tab actuators, ensuring precise control. These valves are engineered to lock tightly, which is crucial for holding the trim tabs securely in their deployed position, even under significant load. This strength is essential for reliably lowering and holding even the largest trim tabs in place, providing stability and control on the water.

Performance & Functionality

The primary job of the Bennett Trim Tabs V351HPU2 Hydraulic Power Unit is to generate hydraulic pressure, and it excels at this task. Its ability to consistently and efficiently move the trim tabs is exceptional. When you press the button to lower the tabs, you feel a solid engagement from the pump, and the tabs move predictably and smoothly.

The most significant strength is its responsive actuation and the security with which it holds the tabs. Unlike some systems that might creep down or require constant micro-adjustments, this unit maintains its position with impressive tenacity. This is critical for maintaining a desired running attitude, especially in variable sea conditions where quick adjustments can make the difference between a comfortable ride and a pounding one.

The unit’s performance is directly tied to the quality of its solenoid valves, which are designed to prevent fluid bypass when in the neutral or locked position. This means no hydraulic drift, a common frustration with less robust systems. The strength to lower and hold is clearly evident; it never feels strained, even when pushing larger tabs to their full deflection.

Design & Ergonomics

From a design perspective, the Bennett unit is all about function and marine-grade resilience. The black housing is understated but durable, designed to withstand the rigors of a boat environment. The Lexan cover over the electrohydraulic assembly is a smart choice, offering good protection against spray and accidental contact without obscuring critical components.

Ergonomically, the unit isn’t something you interact with directly on a daily basis, as its controls are typically found on the helm. However, the ease of installation is a significant ergonomic consideration for the installer. The compact size and straightforward mounting bracket mean it can be fitted into tight spaces without becoming an awkward obstacle.

The translucent reservoir is a masterstroke of user-friendly design. It eliminates the need for dipsticks or complex fluid level indicators; a simple visual check tells you everything you need to know. This attention to practical detail, even in a component that’s largely out of sight, speaks volumes about Bennett’s understanding of boat ownership and maintenance.

Durability & Maintenance

Based on my experience and the unit’s construction, the Bennett Trim Tabs V351HPU2 Hydraulic Power Unit is built for the long haul. The materials used, from the pump housing to the solenoid valves and the protective Lexan cover, appear to be of high quality and designed for saltwater environments. I anticipate this unit will provide reliable service for many seasons.

Maintenance is thankfully straightforward. The primary task is monitoring the hydraulic fluid level in the reservoir. The manual specifies using automatic transmission fluid, a common and easily sourced fluid. Beyond that, ensuring the electrical connections remain clean and free of corrosion is important, as is periodically checking the hydraulic lines for any signs of wear or leaks.

The solenoid valves are sealed units, meaning they are not user-serviceable in the traditional sense. However, their robust design and the protective cover suggest they are well-shielded from damage. Any potential failure points would likely stem from electrical connection issues or, less commonly, internal pump wear over extreme usage, but the build quality here inspires confidence.

Accessories and Customization Options

The Bennett Trim Tabs V351HPU2 Hydraulic Power Unit is itself a component within a larger system. As such, it doesn’t come with a wide array of standalone accessories in the way a flashlight or a multi-tool might. However, its primary function is to interface with Bennett’s trim tab actuators and control panels.

The power unit includes the pump, the two solenoid valves, the translucent reservoir, and the protective Lexan cover, along with a sturdy mounting bracket. These are the essential elements for its operation. While the unit itself is not highly customizable in terms of its internal workings, its compatibility with various Bennett trim tab sizes and helm control options offers a degree of system customization.

For users looking to enhance their trim tab experience, Bennett offers different types of helm switches, including basic rocker switches, advanced joysticks, and even automatic trim control systems. These would be considered accessories that complement this hydraulic power unit, allowing for tailored control and automation of the trim tabs. The 24 volt system also means it’s designed to integrate seamlessly with standard marine electrical setups.

Pros and Cons of Bennett Trim Tabs V351HPU2 Hydraulic Power Unit

Who Should Buy Bennett Trim Tabs V351HPU2 Hydraulic Power Unit?

This hydraulic power unit is specifically designed for boat owners who have or are installing Bennett trim tabs and require a reliable, powerful source for their hydraulic actuation. It is ideal for individuals who prioritize responsive boat handling and are looking for a dependable system that won’t let them down in challenging conditions. This unit is a perfect fit for anyone experiencing issues with older, less responsive trim tab power units or those building a new, high-quality trim tab installation.

Those who should probably skip this product are individuals with 12-volt electrical systems who are not prepared to add a voltage converter, or boaters who are looking for a complete, plug-and-play trim tab kit. If you only need to trim a very small, lightweight craft, a less powerful electric system might suffice, though for most planing hulls requiring hydraulic trim, this unit is well-suited.

To maximize the utility of this unit, ensuring you have a compatible Bennett helm control (rocker switch, joystick, or automatic controller) is essential. Additionally, having the correct lengths of hydraulic hoses and appropriate fittings for your specific boat’s layout is crucial for a seamless installation.

Conclusion on Bennett Trim Tabs V351HPU2 Hydraulic Power Unit

The Bennett Trim Tabs V351HPU2 Hydraulic Power Unit is, without question, a high-quality component that delivers on its promises. It provides the necessary hydraulic muscle to precisely control trim tabs, enhancing boat performance and ride comfort across a variety of conditions. The combination of its compact yet powerful design, durable construction, and user-friendly features like the translucent reservoir makes it an excellent choice for serious boaters.

While the price of $369.99 positions it as a premium component, the performance, reliability, and peace of mind it offers justify the investment for anyone who values optimal boat handling. I would wholeheartedly recommend this unit to anyone upgrading or building a Bennett trim tab system. It’s a critical piece of hardware that, when paired with the right tabs and controls, transforms the boating experience. If you’re looking for robust, dependable trim tab control, this hydraulic power unit is a top-tier option that’s hard to beat.