Garmin AIRMAR B75M 20° Tilt Bronze Thru-Hull Transducer (010-11636-22)

Introduction

The Garmin AIRMAR B75M 20° Tilt Bronze Thru-Hull Transducer is designed for anglers and boaters who require accurate sonar performance on vessels with steeper hull angles. Its durable bronze flush-mount housing features a 20° internally tilted element that keeps the sonar beam properly aligned with the water, eliminating the need for an external fairing block.

Operating at a medium frequency range of 80–130 kHz, the B75M provides an ideal combination of target detail and depth penetration. When paired with compatible Garmin sonar modules, such as the GSD 26, it supports both traditional sonar and spread spectrum scanning for enhanced fish detection, bottom tracking, and underwater clarity.

Key Features

Medium-Frequency Sonar Performance

• 600 W sonar power output.
• Medium-frequency operation from 80–130 kHz.
• Excellent balance of target detail and depth penetration.
• Suitable for coastal and offshore fishing.

Traditional & Spread Spectrum Sonar

• Supports traditional sonar operation.
• Compatible with spread spectrum scanning.
• Improved fish and structure identification.
• Delivers detailed underwater imaging.

Optimized Hull Installation

• Designed with a 20° tilted internal element.
• Suitable for hull deadrise between 16° and 24°.
• Flush thru-hull mounting minimizes drag.
• Eliminates the need for an external fairing.

Reliable Depth Performance

• Maximum depth capability up to 900 ft.
• Consistent bottom tracking.
• Accurate sonar readings in changing water conditions.
• Excellent target separation.

Wide Sonar Coverage

• Beamwidth of 24° to 16°.
• Broad scanning coverage beneath the vessel.
• Improved fish and structure detection.
• Reliable performance across varying depths.

Garmin Compatibility

• Compatible with Garmin sonar systems.
• Works with Garmin GSD 26 and selected sonar modules.
• 8-pin connector for secure installation.
• Seamless integration with compatible Garmin electronics.

Sonar Performance

The Garmin AIRMAR B75M 20° Tilt Transducer delivers dependable medium-frequency sonar performance for vessels with steeper hull deadrise. Its 80–130 kHz operating range provides the ideal balance between underwater detail and depth capability, making it suitable for recreational and offshore fishing.

When connected to compatible Garmin sonar equipment, the transducer supports both traditional sonar and spread spectrum scanning, allowing anglers to identify fish, bottom structures, and underwater terrain with enhanced clarity and confidence.

Usage Instructions

Install the Garmin AIRMAR B75M 20° Tilt Transducer according to the included installation instructions. It is specifically designed for vessels with a hull deadrise between 16° and 24° to ensure the sonar beam remains vertically aligned for optimal performance.

Connect the 8-pin transducer to a compatible Garmin sonar module or chartplotter, then configure the sonar settings based on your boating and fishing needs. Careful installation helps maximize sonar performance while protecting your vessel during the installation process.

Design & Build

The Garmin AIRMAR B75M features a rugged bronze thru-hull housing built to withstand harsh marine environments. Its flush-mounted design reduces drag while the internally tilted 20° element delivers accurate sonar performance without requiring an external fairing block, ensuring a clean installation and dependable long-term operation.

Design Highlights

• Bronze thru-hull construction
• 600 W sonar output
• Medium-frequency operation (80–130 kHz)
• Traditional sonar support
• Spread spectrum scanning compatibility
• Flush-mounted installation
• Internal 20° tilted element
• Suitable for 16°–24° hull deadrise
• Maximum depth up to 900 ft
• 24°–16° beamwidth
• 8-pin connector
• Compatible with Garmin sonar systems
• Reliable bottom tracking
• Enhanced fish and structure detection
• Includes installation instructions

Final Verdict

The Garmin AIRMAR B75M 20° Tilt Bronze Thru-Hull Transducer is an excellent choice for boaters with steeper hull deadrise who need dependable medium-frequency sonar performance. Its combination of traditional sonar, spread spectrum scanning compatibility, and accurate bottom tracking provides clear underwater visibility for navigation and fishing.

With durable bronze construction, optimized installation for 16° to 24° hull deadrise vessels, and seamless compatibility with Garmin sonar systems, the B75M delivers reliable sonar performance and long-lasting value for every adventure on the water.