Furuno AIR-033-352 High Speed Fairing Block

The Furuno AIR-033-352 High Speed Fairing Block is a precision hydrodynamic component engineered to streamline transducer installations on vessels using Airmar B-45 housing systems. Built for anglers, commercial operators, and recreational boaters who demand clean sonar data without hull-mounted transducer drag, this fairing block reduces turbulence and flow distortion around your transducer assembly. Whether you're running shallow-water structure on inland lakes or maintaining consistent bottom readings offshore, a properly faired transducer is critical to maintaining signal integrity at cruise speeds.

This fairing block integrates with the Airmar B-45 housing to create a low-profile, hydrodynamic shape that minimizes water-flow separation and cavitation—both enemies of stable sonar performance. The streamlined design reduces the effective drag footprint of the transducer assembly while maintaining optimal acoustic window positioning. At just 2.5 pounds and measuring 4 x 4 x 15 inches, the AIR-033-352 fits within standard through-hull mounting envelopes on most fishing boats and cruisers, making it an ideal retrofit for upgrading older installations or optimizing new builds. The precision engineering ensures the transducer element remains positioned at the correct angle and depth for maximum water-column penetration and bottom definition.

Boaters stepping up to high-speed sonar systems or those experiencing signal noise and inconsistency at cruising speeds will benefit most from this fairing solution. The block is compatible with Furuno systems and other electronics paired with Airmar B-45 transducer housings, making it a direct-fit upgrade for existing installations. Professional installation is recommended to ensure proper alignment and sealing; incorrect positioning can negate the fairing benefits and introduce water intrusion risks. Once properly mounted, expect cleaner target definition, reduced bottom clutter, and more reliable fish-finding performance across your entire speed range.