Minn Kota Ulterra 112 72″ BT MEGA SI Sonar i-Pilot Link

The Minn Kota Ulterra 112 72″ BT MEGA SI Sonar i-Pilot Link is a premium freshwater bow-mount trolling motor designed for anglers who need maximum trolling power, an extra-long shaft, integrated Humminbird sonar and advanced GPS boat control. Combining 112 lb thrust, 36V operation, a 72-inch shaft, Built-In MEGA Side Imaging, Bluetooth i-Pilot Link, Spot-Lock, Auto Stow/Deploy and Power Trim, this Ulterra configuration provides a highly integrated fishing platform.

The extra-long 72-inch shaft makes the motor particularly suitable for compatible boats with higher bows or applications where additional shaft depth is needed to keep the propeller properly submerged.

For manufacturer information, see the official Minn Kota Ulterra product information.

Minn Kota Ulterra 112 72″ Specifications

Brand: Minn Kota
Series: Ulterra
Product Type: Freshwater bow-mount trolling motor
Maximum Thrust: 112 lb
Shaft Length: 72 inches
Voltage: 36V
Steering: Electric steer
Speed Control: Variable
Digital Maximizer: Yes
Built-In Sonar: MEGA Side Imaging
Side Imaging: Yes
Down Imaging: Yes, through compatible MEGA SI sonar functionality
2D Sonar: Supported through applicable integrated sonar system
Bluetooth: Yes on BT generation
i-Pilot Link: Yes
GPS Navigation: Yes
Spot-Lock: Yes
AutoPilot: Yes
Auto Stow/Deploy: Yes
Power Trim: Yes
Wireless Remote: Yes
Foot Pedal: Electric foot pedal
Mounting Position: Bow
Water Type: Freshwater

For compatible electronics and accessories, explore trolling motors and marine electronics at Precision Marine Outdoors.

Powerful 112 LB Thrust

The Minn Kota Ulterra 112 72″ BT MEGA SI Sonar i-Pilot Link delivers 112 pounds of maximum thrust and operates from a properly configured 36V trolling-motor battery system.

This high-thrust configuration is designed for compatible larger freshwater fishing boats that require more propulsion than an 80 lb trolling motor can provide.

Variable-speed control allows anglers to precisely adjust motor output for changing conditions. Minn Kota’s Digital Maximizer manages power delivery according to the selected speed, helping conserve battery capacity when maximum thrust isn’t required.

For general information about this type of marine propulsion, see the Wikipedia guide to trolling motors.

Built-In MEGA Side Imaging Sonar

A major advantage of this configuration is Built-In MEGA Side Imaging (MEGA SI).

Instead of mounting an external imaging transducer and routing its cable along the trolling-motor shaft, the sonar system is integrated into the lower unit. This produces a cleaner installation while reducing exposed sonar wiring around the trolling motor.

When connected to a compatible Humminbird fish finder, MEGA Side Imaging can provide detailed sonar coverage to the sides of the boat, helping anglers identify fish, structure, vegetation, drop-offs and other underwater features.

The applicable MEGA SI system can also support complementary sonar views through compatible Humminbird equipment, making this configuration particularly attractive for anglers building a Humminbird-based electronics network.

Check your exact fish finder before installation using Minn Kota’s official Built-In MEGA Imaging compatibility information.

MEGA SI vs. MEGA DI

The key difference between this model and the MEGA DI version is sonar capability.

MEGA DI focuses primarily on high-detail imaging beneath the trolling motor. MEGA SI adds imaging coverage to the sides, providing anglers with a wider view of surrounding underwater structure.

For anglers who want to search a larger area around the bow using compatible Humminbird electronics, the Minn Kota Ulterra 112 72″ BT MEGA SI Sonar i-Pilot Link offers the more comprehensive imaging configuration.

Bluetooth i-Pilot Link

The Bluetooth-enabled i-Pilot Link system integrates Minn Kota GPS trolling-motor control with compatible Humminbird fish finders and mapping.

This integration allows supported navigation and motor-control functions to work together through the Minn Kota/Humminbird ecosystem.

Spot-Lock uses GPS to help maintain the boat near a selected position. AutoPilot can assist with maintaining direction, while compatible Humminbird mapping can provide additional integrated navigation capabilities.

For compatibility information, see Minn Kota’s official i-Pilot Link compatibility guide.

Auto Stow/Deploy

One of Ulterra’s signature features is Auto Stow/Deploy. Instead of manually lowering and raising the trolling motor, the system can electronically deploy or stow the motor through supported controls.

This feature can be particularly convenient on larger boats where repeatedly reaching the bow to handle a 72-inch trolling motor may be less practical.

Power Trim

Power Trim allows anglers to electronically adjust the trolling motor’s operating depth.

The feature is especially valuable with the 72-inch shaft because anglers can adjust motor depth as conditions change without manually repositioning such a long shaft.

Together, Auto Stow/Deploy and Power Trim are two of the biggest differences between Ulterra and more conventional bow-mount trolling motors.

Extra-Long 72-Inch Shaft

The 72-inch shaft provides additional reach for boats with higher bow-to-waterline measurements and for situations where bow movement in waves can cause shorter trolling motors to approach the surface.

Correct shaft selection depends on boat dimensions, mounting location, loading and typical fishing conditions.

For additional boat electronics, explore fish finders, trolling motors and marine accessories at Precision Marine Outdoors.

How to Use the Minn Kota Ulterra 112 72″

Securely install the trolling motor on a compatible bow mounting surface according to the instructions for its exact model number. The 112 lb motor requires the manufacturer-specified 36V electrical system, marine-grade wiring and appropriate circuit protection.

Once powered, use the wireless remote or another supported control to activate Auto Stow/Deploy. Adjust the motor to an appropriate operating depth using Power Trim.

Use the remote or electric foot pedal to control direction and variable speed. Spot-Lock can be activated when GPS-assisted position holding is needed.

Connect the Built-In MEGA SI sonar to a compatible Humminbird fish finder using the correct manufacturer-specified sonar connection hardware.

For detailed setup, consult the official Minn Kota Ulterra manuals and installation guides.

Frequently Asked Questions

How much thrust does the Ulterra 112 provide?

The Ulterra 112 delivers 112 pounds of maximum thrust.

What voltage does the motor require?

The 112 lb configuration requires a 36V trolling-motor electrical system.

How long is the shaft?

This model uses an extra-long 72-inch shaft.

What does MEGA SI mean?

MEGA SI means MEGA Side Imaging, Humminbird sonar technology designed to provide detailed imaging to the sides of the boat through compatible equipment.

Does MEGA SI also provide Down Imaging?

Compatible Humminbird MEGA Side Imaging systems generally incorporate additional sonar capabilities, but exact available views depend on the specific trolling-motor transducer, fish finder and generation. Check the compatibility chart for the exact combination.

What does BT mean?

BT identifies the Bluetooth-enabled generation of Minn Kota’s trolling-motor control system.

Does it have Spot-Lock?

Yes. The applicable i-Pilot Link system includes GPS Spot-Lock.

What is i-Pilot Link?

i-Pilot Link integrates compatible Minn Kota GPS trolling-motor functions with compatible Humminbird fish finders and mapping.

Does this Ulterra automatically deploy?

Yes. Ulterra features Auto Stow/Deploy for electronically deploying and stowing the motor.

Does it have Power Trim?

Yes. Power Trim electronically adjusts trolling-motor depth.

Is the Ulterra 112 72″ MEGA SI designed for saltwater?

No. Ulterra is designed for freshwater applications. Minn Kota’s Riptide trolling-motor families are designed for saltwater environments.