A boat lift motor replaces the hand wheel on a vertical or cantilever lift so the boat goes up and down at the push of a button. It's one of the most popular upgrades a lift owner can make, and the choice comes down to four things: the type of drive, how you'll power it, your lift's capacity and the install kit for your lift brand and winch shaft.
Most of what we carry here is from Boat Lift Boss, one of the best-selling lift motor brands, along with the remotes, winch boxes and install kits that go with it.
Direct-drive motor or integrated winch?
Direct-drive systems (Boat Lift Boss Generation 5 and Generation 6) mount to your existing winch shaft and turn it directly. You keep your lift's winch and just add power. They're the most common upgrade and the most affordable route, and they're sold with or without remotes and Bluetooth control depending on the model.
Integrated winches replace the entire winch with one that has the motor built in. They're the choice when your old winch is worn out or when you want a single matched unit, and they're rated by capacity (for example 5,000 or 7,500 lb).
Replacement winch boxes (Lorenz-style, in 3,500, 4,000 and 7,000 lb ratings) are for lifts where the gearbox itself is the problem. Pair one with a direct-drive motor for a full refresh.
12/24V solar or 120V AC?
| 12/24V DC | 120V AC | |
|---|---|---|
| Power | Deep-cycle battery, kept charged by a small solar panel | Shore power outlet on the dock |
| Best for | Docks with no electricity, or where running a cord is a pain | Docks that already have a GFCI outlet |
| Watch for | Battery health; size the panel and battery for how often you lift | GFCI protection and keeping connections dry |
On a DC system, a solar charging station keeps the battery topped up between trips so you never walk down to a dead lift. Many owners run 24V (two batteries) for faster, stronger lifting on heavier boats.
Sizing: capacity and the right install kit
Capacity: your lift, winch and motor should all be rated above the boat's real weight: hull, engine, fuel (gasoline is about 6 lb per gallon), batteries and gear. A common rule of thumb is to leave 20 to 25% headroom over that loaded weight.
Install kit: direct-drive motors attach to the winch shaft, and shafts differ by lift brand and thread. Boat Lift Boss install kits are matched to specific lifts, for example ShoreStation (narrow or wide winch), Shoreline vertical lifts, Hewitt, Dockrite and Dutton, and to shaft sizes such as 5/8 inch 11 pitch or 7/8 inch 9 pitch. Check your lift's brand and measure the shaft before you order. It's the number-one reason installs stall.
Generation matters: kits, remotes and replacement electronics are made for specific Boat Lift Boss generations (legacy Gen 2/24, Gen 5, Gen 6), so match parts to the unit you own.
Controls and upkeep
- Key turn or membrane switch at the dock: simple and reliable.
- Wireless key fob: raise and lower from the boat. Great for solo launching.
- Corded pendant: a 15 ft wired controller when you want control from a distance without batteries.
- Bluetooth (Gen 6): control from your phone.
For upkeep, keep battery terminals clean, check the solar panel angle each season, and on 120V units replace motor brushes when performance drops. Canopy LED light kits that run off the remote are a popular add-on for night use.
