Garmin Airmar B164-20 Tilted Element Thru-Hull Transducer, 20 Degree Tilt, 1kW, 50/200 kHz, Depth/Temp, Bronze Housing, 6-Pin Connector
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Overview
The Garmin 010-11010-00 is a 1 kW, 50/200 kHz thru-hull transducer with a fixed 20° tilted element and a 6-pin connector for traditional sonar depth and water temperature. It is built around a low-profile bronze housing that extends less than 6.35 mm (0.25 in) below the hull, which helps it stay out of harm’s way on trailer bunks and rollers.
The 20° internal tilt is meant to match hull deadrise angles from 16° to 24° at the mounting location, so the sonar beam points straight down when the boat is on plane. At 50 kHz it uses a wide beam (22°) for deeper water tracking, and at 200 kHz it uses a narrow beam (6°) for better bottom detail and target separation.
This is a bronze-housed thru-hull style that suits fiberglass or wood hulls and is not a fit for aluminum hulls. Depth performance is rated to 549 m (1,800 ft) at 50 kHz and 244 m (800 ft) at 200 kHz, depending on water conditions, bottom type, installation quality, and sounder settings.
Key features
- Traditional dual-frequency sonar at 50/200 kHz with 1 kW RMS power
- Fixed 20° tilted element for hull deadrise angles from 16° to 24° at the install point
- Depth and fast-response water temperature sensing (no speed function)
- Low-profile bronze thru-hull housing that extends less than 6.35 mm (0.25 in) below the hull
- Beam coverage: 22° at 50 kHz for wider deep-water coverage, 6° at 200 kHz for tighter detail
- Thru-hull cutout size of 95 mm (3-3/4 in) for typical fiberglass or wood installations
- 6-pin connector for systems that use the Garmin 6-pin transducer port
Compatibility and fit
Confirm three things before ordering: your hull material, the deadrise where you plan to install, and the connector style at the sounder or sonar module. The 20° tilt is intended for 16° to 24° deadrise at the mounting location, and the bronze housing is intended for fiberglass or wood hulls.
Your sonar must support 50/200 kHz traditional sonar and a 1 kW transducer. If your Garmin device uses a different transducer port style than 6-pin, plan on using the correct adapter so the transducer can be connected without modifying the cable.
Installation and setup
This is a thru-hull install that requires drilling a 95 mm (3-3/4 in) hole and bedding the housing with marine sealant. The arrow on the top of the transducer should be aligned toward the keel or centerline so the internal element angle matches the hull’s deadrise.
After launching, check for leaks right away and keep an eye on the install during the first hours in the water. Avoid pulling or carrying the transducer by the cable, and route the cable where it will not chafe or get pinched by panels, hatches, or rigging tubes.
On-water use notes
The 50 kHz channel is the go-to when you are pushing deeper water and want bottom tracking farther down, while 200 kHz tightens the beam for cleaner definition in shallower depths and around structure. Because the housing sits close to flush, it is a common choice for boats that run on plane and trailer often, where a larger fairing block would be vulnerable.
Maintenance and care
Keep the face clean of growth and rinse it after saltwater use, especially if the boat sits in the water for extended periods. When cleaning around the transducer, stick with mild detergent and avoid solvent-based cleaners that can damage the transducer’s face and seals.
Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.
Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.
Delivery and tracking
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Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.
Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.
Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.
To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.
We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.