Airmar 33-523-01 High Speed Fairing Block For B258

Airmar high-performance plastic fairing block designed for through-hull mounting of B258, SS258, and B271W transducers, optimizing sonar performance at high boat speeds up to 30+ knots by reducing drag and turbulence. Its cut-to-fit design aligns the transducer face parallel to the waterline for clear depth and fish detection in marine environments.

Product Overview

This fairing suits professional installations on fast fishing boats or yachts, where the B258's 1kW 50/200kHz capabilities demand streamlined hull integration to minimize cavitation during navigation or trolling. Marine technicians cut it to match hull deadrise for thru-hull setups without compromising beam patterns.

Key Specifications

• Compatibility: B258 bronze, SS258 stainless steel, B271W transducers

• Dimensions: 22" L x 5.25" W x 5" H (uncut)

• Deadrise range: 0-25° (cuttable top/bottom halves)

• Weight: 7.6 lbs (packaged)

Technical Specifications

• Supports speeds to 30+ knots with hydrodynamic shaping

• Requires M32 hull nut, marine sealant, and band saw for fitting

• Box dimensions: 6"H x 8"W x 24"L

• USA-made, corrosion-resistant plastic construction

What's in the Box

• High-speed fairing block (top and bottom sections)

• Mounting hardware (bolts, nuts, washers)

• Cutting template and installation guide