Minn Kota Ultrex QUEST 90/115 Trolling Motor 24/36V 52" w/CHIRP

The Minn Kota Ultrex QUEST 90/115 is the company's flagship cable-steer trolling motor - the QUEST-series rebuild of the iconic Ultrex platform with brushless drive, built-in Dual Spectrum CHIRP sonar, advanced GPS, and the most responsive mechanical cable steering Minn Kota has ever built. For owners who specifically want cable steering's instant agile response combined with modern GPS auto-steering capability AND integrated sonar in one bow-mount unit, this is the right call. It's the most-equipped trolling motor in the Minn Kota lineup.

Cable steer with GPS auto-steering - the unique combination. Most trolling motors with GPS auto-steering use electric steering systems where the steering is driven by an electric motor responding to GPS commands. The Ultrex is one of the only trolling motors that combines mechanical cable steering (instant, direct, agile response when you're actively driving the motor via the foot pedal) AND GPS auto-steering (Spot-Lock, AutoPilot, Drift Mode all driven through the same cable steering system). Result: cable-steer's instant response when you're fishing actively, plus GPS hands-free position holding when you want it. For tournament bass fishing where both capabilities matter, this is the unique combination.

Dual voltage 24V / 36V flexibility. The 90/115 designation means the same motor delivers 90 pounds of thrust on 24V (two batteries in series) or 115 pounds on 36V (three batteries in series). Same motor, different battery configuration. For owners running 24V systems, you get 90 lb thrust now with the option to upgrade to 36V later for more thrust without buying a new motor. For owners already running 36V, the full 115 lb thrust is available immediately.

Brushless motor design. The QUEST series uses brushless motors throughout - longer service life (no brushes to wear out), better thermal performance (the brushless motor runs cooler at the same thrust output), and meaningfully higher efficiency (more thrust per amp drawn, longer fishing time per battery charge). For owners coming from older brushed Ultrex motors, the brushless QUEST version delivers noticeable improvements in runtime and motor longevity.

52-inch shaft length. The 52-inch shaft is the mid-tier length in the Ultrex line - appropriate for boats with bow heights in the 18-22 inch range above the waterline (typical aluminum and fiberglass bass / walleye boats). For taller bow heights, the 60-inch and 72-inch Ultrex variants are available. For shorter bow heights, the 45-inch variant is correct. Match the shaft length to your specific bow height for proper prop depth (4-6 inches below the waterline when deployed).

Built-in Dual Spectrum CHIRP sonar. The signature feature of this Ultrex QUEST variant - Dual Spectrum CHIRP sonar transducer is built directly into the trolling motor's lower unit. The transducer wiring runs internally through the motor shaft and exits at the motor head for connection to a compatible fish finder. No external transducer to mount on the bow, no separate cabling on the bow, no shoot-through-hull installation - the trolling motor IS the transducer mount. CHIRP technology covers a wide frequency range for accurate detailed returns of fish, structure, and bottom vs traditional fixed-frequency sonar.

Heel-Toe Power Steering foot pedal. The Ultrex foot pedal is the only trolling motor foot pedal with Power Steering - electric assist makes the heel-toe steering input lighter and more responsive than purely mechanical cable steering. The result: all-day comfort (your foot isn't tired from working against the cable resistance) and instant responsiveness (the assist eliminates the slight lag in mechanical cable steering). Combined with the corded direct connection to the motor, the Power Steering pedal is the most refined foot-pedal control in the trolling motor market.

User-programmable foot pedal button. The foot pedal includes a user-programmable button that you assign to your most-used feature - mark a waypoint, engage AutoPilot, deploy or retract Talon / Raptor shallow water anchors. One-touch access while keeping your hands free for casting and rod work. For tournament-style active fishing where every workflow shortcut matters, the programmable button is meaningful efficiency improvement.

Advanced GPS Trolling System. Spot-Lock (motor uses GPS to hold the boat in a fixed location regardless of wind / current - press the button at a productive spot, the motor takes over and keeps you there). Spot-Lock with Jog (move the locked position 5 feet in any direction with one button press using the included heading sensor). Drift Mode (motor automatically engages speed and course control simultaneously - replaces drift socks, kicker motors, manual rudder management). AutoPilot (constant heading regardless of wind / current). Recorded Paths (record a productive trolling path and replay identically). Combined, these features turn the Ultrex into a serious tournament-class fishing platform.

Heading sensor INCLUDED. For Spot-Lock with Jog and AutoPilot heading hold, the system needs heading data. The included heading sensor in the motor head provides this - no separate purchase needed. The sensor reports the boat's heading (the direction the motor is pointed) to the GPS system, which uses that data to execute Jog commands relative to the boat's orientation rather than just compass north.

Real-time battery monitoring with Eco-mode. The motor monitors battery state in real time and displays time-until-empty on the Micro Remote and connected fish finders. At 20 percent remaining, the system prompts you to enter Eco-mode, which reduces current draw to extend the remaining run time. The eco mode trades some thrust capability for meaningfully longer runtime - useful for stretching the fishing day or getting back to the launch when batteries are running low.

Digital Maximizer. The motor's variable-speed control delivers exactly the current the prop needs at the commanded speed - vs older pulse-width-modulated trolling motors that wasted energy at lower speeds. Digital Maximizer reduces wasted energy and provides up to 5 times longer runtime per battery charge at lower speeds. For typical fishing where most of the day is spent at 1-3 mph speeds, Digital Maximizer is the feature that lets you fish all day on one battery charge.

Indestructible composite shaft. The shaft is built from Minn Kota's composite material (a glass / carbon composite) that takes hits from submerged stumps, rocks, dock pilings, and other obstacles without breaking. Minn Kota guarantees the composite shaft for life - the longest warranty term on any trolling motor shaft in the market.

One-Boat Network compatible. The Ultrex integrates with the One-Boat Network ecosystem - the connectivity standard that ties the trolling motor, compatible fish finders (sister-brand HELIX, APEX, SOLIX series), and mobile app into one integrated system. Control speed, steering, Spot-Lock, AutoPilot from your iOS or Android device via the mobile app. View motor status on the fish finder. Share waypoints between devices.

Micro Remote included. The included Micro Remote is the hand-held wireless controller for the GPS features (Anchor, Jog, Heading Lock, custom shortcuts). Compact size mounts on a lanyard around your neck or clips to your shirt - lets you control the motor from anywhere on the boat without using the foot pedal.

What's in the kit. Complete bundle includes: Ultrex 90/115 lb / 52-inch motor with built-in Dual Spectrum CHIRP, corded foot pedal (Power Steering), Micro Remote, remote lanyard, heading sensor, 30-foot Ethernet extension cable, sister-brand HELIX fish-finder adapter cable, stabilizer, hold-down strap, MKP-39 prop, and mounting hardware. Everything for a complete install in one box (battery / charging accessories sold separately).

Freshwater rated only. The Ultrex series is built for freshwater use - the motor seals and corrosion package are NOT rated for saltwater. Don't use this in saltwater - it'll corrode out within a season or two. For saltwater applications, Minn Kota's Riptide Terrova or Riptide Instinct series are the saltwater-rated equivalents.

Install. Mount the bow-side bracket to the boat's bow using the supplied hardware. Wire the trolling motor to the 24V or 36V battery bank via 6 AWG (24V) or 4 AWG (36V) marine-grade tinned cable through an appropriate circuit breaker (typically 60A breaker for the 36V / 115 lb thrust config). Connect the corded foot pedal to the motor (18-foot cord length). Pair the Micro Remote to the motor. Connect the built-in CHIRP transducer output to your compatible fish finder. If running One-Boat Network integration, connect the 30-foot Ethernet cable to your fish finder. Total install runs 4-6 hours for someone with reasonable mechanical and electrical skills.