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Temperature Sensor 13640-32G20 – Fits Suzuki DF25A/DF30A 25–30HP
- $69.77
- $69.77
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How to Match This Part
This aftermarket engine temperature sensor replaces Suzuki Marine 13640-32G20 (also catalogued as 13640-32G20-000). It screws into the powerhead, monitors cylinder temperature for the cooling / overheat-warning circuit, and feeds the engine control system on the Suzuki four-stroke outboards listed below.
Match this part in this order:
1. Number on the sensor you remove — 13640-32G20, 13640-32G20-000, or a superseded predecessor 13640-32G00 / 13640-32G01
2. Engine model — DF25A or DF30A family at 25HP or 30HP against the compatibility table
3. Probe, lead, and connector shape — compare the product images to your original sensor
Identify the sensor by form as well as by number. The assembly has a threaded brass-toned sensing probe with hex flats for a wrench, a black braided protective lead, and a rectangular molded 2-pin electrical connector with a lock tab. If your original sensor looks different or carries an unrelated Suzuki number, do not use this part even if the horsepower overlaps.
Part Number Cross-Reference
Use these verified Suzuki catalog numbers to confirm you have the correct engine temperature sensor. Brand names and OEM numbers are for identification only.
| Type | Brand | Part Number | Notes |
|---|---|---|---|
| OEM | Suzuki Marine | 13640-32G20 | Primary SENSOR, ENGINE TEMP listing number |
| OEM | Suzuki Marine | 13640-32G20-000 | Catalog form with -000 suffix (same assembly) |
| OEM | Suzuki Marine | 13640-32G00 | Superseded predecessor (→ 13640-32G01 → 13640-32G20) |
| OEM | Suzuki Marine | 13640-32G01 | Superseded predecessor (replaced by 13640-32G20) |
This is an aftermarket part manufactured by JLM Marine. It is not sold as a genuine Suzuki Marine component.
Compatible Engine Models
Confirm your engine model and the number on the removed sensor before ordering. For Suzuki owners: Suzuki Outboard Parts Diagrams & Catalog.
| Engine Model | HP | Stroke | Notes |
|---|---|---|---|
| DF25A, DF25AR, DF25AT, DF25ATH | 25 | 4-Stroke | Confirm 13640-32G20 (or superseded 13640-32G00 / 13640-32G01) on the removed sensor |
| DF30A, DF30AQ, DF30AR, DF30AT, DF30ATH | 30 | 4-Stroke | Confirm 13640-32G20 (or superseded 13640-32G00 / 13640-32G01) on the removed sensor |
Horsepower alone is not enough — always match the OEM number and the probe / connector form shown in the product images.
Technical Specifications
| Specification | Value |
|---|---|
| Part type | Engine temperature sensor assembly |
| Primary OEM number replaced | 13640-32G20 |
| Also covers superseded numbers | 13640-32G00, 13640-32G01 |
| Engine brand | Suzuki Marine outboard |
| Rated output range | 25HP and 30HP |
| Physical configuration | Threaded sensing probe with hex flats, protected lead, molded 2-pin connector |
| Sensing role | Cylinder / engine temperature monitoring for overheat caution input |
| Condition | New unit (not remanufactured) |
Installation Guide
- 1Switch the ignition off, disconnect the negative battery cable, and allow the powerhead to cool completely before touching any cooling-system fittings.
- 2Locate the engine temperature sensor on the powerhead using your Suzuki parts diagram, release the connector lock, and unplug the harness without pulling on the wires.
- 3Use the correct wrench on the hex flats to unscrew the original sensor. Catch any coolant that escapes and keep the sensor bore clean.
- 4Compare the removed part number, probe profile, lead routing, and 2-pin connector with the replacement. Do not install if any feature differs.
- 5Start the new sensor by hand to prevent cross-threading, then tighten it only to the torque given in the applicable Suzuki service manual for your model.
- 6Reconnect the plug until the latch clicks, reconnect the battery, top up coolant if required, start the engine, and verify normal warning-system operation with no leakage at the sensor.
Note: Professional installation is recommended for engine temperature sensors on EFI four-stroke outboards.
Troubleshooting & FAQ
Important Notes
- Verify that the product images and the number on your original sensor match 13640-32G20 / 13640-32G00 / 13640-32G01, including the threaded probe, protected lead, and 2-pin connector. If anything differs, do not proceed even if your horsepower overlaps.
- This listing covers Suzuki DF25A and DF30A family applications at 25HP and 30HP that use this SENSOR, ENGINE TEMP. Confirm fitment against your engine’s parts diagram when serial-specific diagrams are available.
- This is an aftermarket replacement and is not a genuine Suzuki Marine OEM component.
- Do not invent generic torque values. Follow the service specification for your exact Suzuki model.
- Professional installation is recommended for engine temperature sensors on EFI four-stroke outboards.
Why Choose JLM MARINE?
- Precision Fit: Cross-referenced to Suzuki 13640-32G20 for the DF25A and DF30A applications listed above.
- Quality Control: Each batch is inspected for dimensional consistency and workmanship.
- Direct from Manufacturer: Aftermarket marine engine temperature sensors engineered for reliable cooling-system feedback on Suzuki four-stroke outboards.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 5 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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