Direct answer: for boats using Bennett or similar Bennett V351HPU1 trim tab systems, a 12V hydraulic power unit (HPU) is the right upgrade or replacement, offering reliable hydraulic pressure to raise or lower tabs. The top picks below are suited for different boat sizes, maintenance needs, and installation preferences. Choose this if you want robust, direct-fit replacements; choose this if you need OEM-friendly variants; avoid this if you don’t have space for a compact unit. The table below compares five well-matched options to help you decide.
| Product | Brand | Best For | Key Benefit |
|---|---|---|---|
| Bennett V351HPU1 Hydraulic Power Unit | Bennett Marine | Owners seeking original Bennett compatibility | Compact powerhouse with two solenoid valves |
| NEW V351HPU1 Hydraulic Power Unit 12V Replacement | XunDong | Direct replacement with 2 solenoids | OEM-fit replacement with reliable fluid control |
| Lamerto V351HPU1 Marine Hydraulic Power Pump | Lamerto | Budget-friendly replacement | OE-style pump compatible with Bennett V351HPU1 |
| Neeseelily V351HPU1 12V Hydraulic Power Unit | Neeseelily | Mid-range replacement | Directly labeled as V351HPU1 compatible |
| HOLDWELL Marine 12V Power Unit V351HPU1 | HOLDWELL | Durable, water-ready unit | 11–12V system with Bennett V351HPU1 compatibility |
Bennett Marine V351HPU1 Hydraulic Power Unit

Brand: Bennett Marine. This 12-volt hydraulic power unit is described as a compact powerhouse that creates hydraulic pressure to lower and raise Bennett trim tabs. It employs two solenoid valves to direct fluid to the actuators, and the valves lock securely to maintain tab position. Best for boaters needing an original-style Bennett setup with straightforward installation, dependable hydraulic control, and secure tab locking. Caution: ensure compatibility with your specific Bennett trim tab model before purchase.
NEW V351HPU1 12V Replacement for Trim Tabs

Brand: XunDong. This replacement is designed for direct compatibility with Bennett trim tab pumps, offering seamless replacement with two solenoid valves for precise fluid control. It’s positioned for reliability across a range of marine applications and environments. Best for sailors needing an OEM-fit replacement that maintains Bennett-style operation. Limitation: verify exact mounting footprint and electrical connections match your current setup.
Lamerto V351HPU1 Hydraulic Power Pump

Brand: Lamerto. This 12V hydraulic power unit is promoted as a replacement for Bennett V351HPU1, with OE-style fit and straightforward installation. It’s best for boat owners seeking a cost-effective, compatible option that preserves standard trim tab operation. Limitation: exact performance data and warranty terms are not provided in listing details; confirm installation fit before purchasing.
Neeseelily V351HPU1 12V Hydraulic Power Unit

Brand: Neeseelily. Marketed as a V351HPU1-compatible 12V hydraulic power unit, this option provides a straightforward replacement path for yacht or small-boat trim tab systems. Best for owners who want a dedicated V351HPU1 swap with simple wiring and plug-and-play style. Caution: ensure the unit’s physical dimensions fit your chosen mounting location.
HOLDWELL Marine 12V Power Unit

Brand: HOLDWELL. This 12V pump is described as compatible with Bennett’s V351HPU1, mapping to typical marine trim tab configurations. Best for boaters who need a rugged, maintenance-friendly unit with direct application to Bennett trim tabs. Limitation: detailed specification data is limited in the listing; verify electrical and hydraulic port compatibility with your system.
Buying Guide: Key Considerations for 12V Trim Tab HPUs
What size boat and tab system do you operate? Match the unit to your trim tab pump’s voltage, mounting footprint, and actuator requirements to ensure reliable operation. Look for units advertised as V351HPU1-compatible if you own Bennett trim tabs, as this reduces the risk of fitment problems.
Do you need OEM compatibility or a budget-friendly option? OEM-compatible units tend to offer smoother integration and fewer wiring changes, while budget options can save money but may require more setup work. Consider whether a two-solenoid design is essential for precise tab control or if a single-valve configuration would suffice for your setup.
What about installation and maintenance? Choose units with clear installation guidance, robust reservoir visibility, and easy access for fluid checks. A durable cover and rugged construction help protect against washdowns in marine environments. Confirm mounting options and cable routing to minimize interference with other equipment.
Installation footprint and wiring compatibility are often overlooked. Compare dimensions, screw locations, and port types. A quick-match replacement reduces downtime, especially on vessels with tight engine rooms or deck mounts. If possible, consult your boat’s service manual or a professional to verify compatibility before ordering.
FAQ
- What is a V351HPU1?
A V351HPU1 is a 12V hydraulic power unit commonly used with Bennett trim tab systems, delivering hydraulic pressure to operate the tabs.
- Do these units require special maintenance?
Routine checks of hydraulic fluid level and reservoir condition are typical; any leaks or unusual noises warrant inspection.
- Are OEM-compatible HPUs better than generic ones?
OEM-compatible units reduce fitment risk and simplify wiring, but well-made aftermarket options can be cost-effective if they specify V351HPU1 compatibility.
- Can I install a 12V HPU in any boat?
Most boats with 12V electrical systems can accommodate these units, but confirm the mounting space, wiring, and tab actuator compatibility first.
- What should I verify before buying a replacement?
Confirm voltage, fitting compatibility with your trim tabs, solenoid valve configuration, mounting footprint, and reservoir access.