Overview

The Simrad 000-13777-001 is an SS175M medium CHIRP through-hull transducer with a 0 degree tilted element and a stainless steel housing. It sweeps 85 to 135 kHz, is rated for 1 kW, and includes a 10 m (33 ft) cable terminated with a black 9-pin connector.

Depth and fast-response water-temperature sensing are built in. The housing measures 134 mm in diameter by 118 mm tall and weighs about 2.7 kg (6 lb), so it is worth confirming bilge access and cable routing before you commit to the cutout.

Key features

• Medium CHIRP band: 85 to 135 kHz for clear bottom detail and target separation
• 1 kW transducer rating for stronger returns in mid to deeper water
• 0 degree tilted element matched to hull deadrise from 0 to 7 degrees at the mounting location
• Stainless steel, flush through-hull style for use in all hull materials
• Depth and water-temperature sensing in the same housing
• 10 m (33 ft) cable with a black 9-pin connector
• Cutout size: 95 mm (3-3/4 in) for fiberglass or wood hulls, 105 mm (4-1/8 in) for metal hulls

Compatibility and fit

This is a tilted-element through-hull transducer. The 0 degree version is intended for boats where the deadrise at the mounting spot measures 0 to 7 degrees, so the internal element ends up level in the water.

On metal hulls, the stainless housing needs to be electrically isolated from the hull to reduce electrolytic corrosion. Do not install a metal transducer on a vessel with a positive ground electrical system.

Installation and setup

Choose a location where water flow stays smooth at speed and the transducer remains continuously immersed. Avoid mounting near intakes, discharge openings, strakes, or other hull features that introduce bubbles and turbulence.

Align the arrow on top of the transducer toward the keel or centerline, bed the housing with a below-waterline marine sealant, and check for leaks as soon as the boat is back in the water.

Electrical and system integration

The 10 m (33 ft) cable length is usually enough to reach the helm without extensions when it is routed cleanly. Keep the run away from high-current wiring and RF sources where possible, and do not pull, carry, or support the transducer by its cable.

Confirm your display or sonar module has a matching 9-pin sonar input. If your system uses a different connector style, an adapter cable is the right approach instead of cutting the factory plug.

Use on board

This transducer is a practical fit for boats that fish mixed depths and want medium-band CHIRP for readable structure and fish targets. It also works well for coastal cruising when you want steady depth tracking at speed, as long as the mounting spot has clean flow.

Maintenance and care

In saltwater, coat the exposed face with a water-based antifouling paint and renew it as needed. Avoid solvent-based cleaners and products that can damage the urethane acoustic window.

During routine maintenance, inspect the bedding area and hardware, and re-check for leaks after haul-outs or any time the transducer has been bumped or serviced.