Garmin 010-11635-20 40-75KHZ 0D Tilt Bronze B75L TH 8P

Discover Superior Underwater Clarity with the Garmin B75L Bronze Thru-Hull Transducer

Upgrade your boating experience with this high-performance bronze thru-hull transducer designed for serious anglers and mariners who demand precision sonar imaging. Engineered for boats with hull deadrises between 0° and 7°, this low-profile model mounts seamlessly through the hull, delivering crystal-clear views of the underwater world without compromising your vessel's sleek lines.

Key Performance Highlights

• Ultra-Wide Frequency Range: Operates across 40-75 kHz, providing versatile scanning for everything from shallow reefs to deep offshore structures.
• Powerful Output: 300W of RMS power ensures reliable performance even in challenging conditions like heavy currents or thermoclines.
• Optimized Beam Width: 32° at lower frequencies for broad coverage and 21° at higher frequencies for pinpoint accuracy, helping you spot fish schools and wrecks with ease.
• Impressive Depth Capability: Reach up to 800 feet, ideal for coastal cruising or bluewater adventures.
• Essential Data Outputs: Accurate depth readings and water temperature sensing to keep you informed on environmental changes.

Why Choose Bronze Thru-Hull Design?

Bronze construction stands up to the harshest saltwater environments, resisting corrosion and maintaining signal integrity over time. The thru-hull installation with 0° tilt ensures a streamlined water flow over the face, minimizing drag and air bubbles that can distort readings. Perfect for planing hulls where deadrise is minimal, this low-profile (L) version sits nearly flush, preserving your boat's hydrodynamics.

Real-World Applications for Anglers and Boaters

Whether you're chasing trophy tuna in deep water or mapping baitfish around rocky bottoms, this transducer excels at separating targets with its dual-beam capability. Pair it with your Garmin display for enhanced CHIRP-like performance, revealing fish arches, bottom hardness, and structure details that in-hull or transom mounts often miss. It's a game-changer for tournament pros who need every edge in spotting structure-oriented species like snapper or grouper.

Installation Insights for Optimal Results

Selecting the right spot on your hull is crucial—aim for a flat area forward of the propeller, away from strakes or through-hulls that create turbulence. Use marine sealant for a watertight fit, and fair the unit to match your deadrise for maximum bottom coverage. The 8-pin connector plugs directly into compatible Garmin units, simplifying setup without adapters.

Maintenance Tips to Extend Longevity

• Wipe the face clean after every trip to remove marine growth.
• Inspect cables for wear during haul-outs.
• Avoid antifouling paints on the active ceramic to prevent signal loss.
• Store your boat out of water when possible to reduce biofouling.

Proven Reliability in Diverse Conditions

Users rave about its stability at speed, holding bottom lock even at 30+ knots on planing hulls. In murky bays or clear offshore waters, the wide-to-narrow beam transition adapts seamlessly, giving you confidence from trolling to drifting.