Garmin transducer technical fitment
Garmin GT51M-TM Transom Mount DownVü/SideVü 500W, Traditional 600W Transducer Mid-Band CHIRP w/Temp – 12-Pin
This traditional CHIRP and CHIRP DownVü/SideVü transducer is optimized for depth performance and rough condidtions.
| Model | GT51M-TM |
|---|---|
| Mount Style | Transom mount |
| Material | Not specified |
| Connector | 12-pin |
| Power | 500W |
| Frequency / CHIRP | 260/455 kHz, 80-160 kHz |
| MPN | 010-01966-00 |
Technical specifications
| Power | 500W |
|---|---|
| Frequency | 260/455 kHz, 80-160 kHz |
| Mount Style | Transom mount |
| Connector | 12-pin |
| Temperature | Yes |
| Speed Included | No |
| Connector Pins | 12 |
| Imaging | Standard/Down/Side |
| CHIRP | Medium/Non Traditional |
| Mounting Style | Transom |
| Cable Length | 30′ |
| Box Dimensions | 5″H x 6″W x 12″L WT: 3.5 lbs |
| UPC | 753759152918 |
| MPN | 010-01966-00 |
| UPC / GTIN | 753759152918 |
Fitment guidance
- Transom-mount transducers are typically the simplest retrofit option, but placement still matters for clean water flow and reliable readings at speed.
- Scanning sonar models should be matched to the display’s supported sonar type and installed with a clear view below and beside the boat.
- This listing is built around the 12-pin connector style shown in the product data. Confirm adapter needs if your Garmin unit uses a different sonar port.
Before you buy
Confirm the display model, sonar port, connector, hull material, mounting style, deadrise angle, and cable route before ordering. Some installs require adapters, fairing blocks, sealant, or professional installation.
What to match
Match the transducer to the sonar technology you need: traditional CHIRP, ClearVü, SideVü, Ultra High-Definition scanning, or specialized high-power offshore CHIRP.
Compare similar Garmin transducers
Use this section to compare the closest Garmin transducer options by mount style, material, connector, sonar power, and frequency range.Garmin GT51M-TM Transom Mount DownVü/SideVü 500W, Traditional 600W Transducer Mid-Band CHIRP w/Temp – 12-Pin CurrentTransom mount · 12-pin · 500W · 260/455 kHz, 80-160 kHzGarmin GT51M-TH SS TH DownVü/SideVü 500W (CHIRP 260/455 kHz) Traditional 600W (Mid-Band CHIRP 80-160) Transducer – 12-PinThru-hull · Stainless steel · 12-pin · 500W · 260/455 kHz, 80-160 kHz · 5°Garmin GT51M-THP SS TH Pair DownVü/SideVü 500W (CHIRP 260/455kHz) Trad. 600W (Mid CHIRP 80-160) Transducers – 12-PinThru-hull · Stainless steel · 12-pin · 500W · 260/455kHz, 260/455 kHz, 80-160 kHz · 25°Garmin GT34UHD-TH Ultra HD Thru-Hull TransducerTransom mount · 12-pin · 500W · 800 kHz, 200 kHz, 760-880 kHz
Common questions
Will this work with every Garmin unit?
No. Compatibility depends on your Garmin display, sonar port, connector, and supported sonar type.How do I choose the right tilt or deadrise?
For tilted-element thru-hull models, match the transducer angle to your hull deadrise so the sonar beam points correctly in the water.Should I confirm before ordering?
Yes. Transducers are highly installation-specific, especially thru-hull, in-hull, pocket-mount, and high-power CHIRP models.MPN: 010-01966-00 · UPC/GTIN: 753759152918View AllClose
