| Part Number | 179730-0040 |
| Type | Engine Coolant Temperature Sensor (NTC Thermistor) |
| Application | Sumitomo SH200A3, SH240A3 |
| Housing | Brass / Stainless Steel |
| Sealing | Pre-installed Rubber O-ring |
| Electrical | 2-pin / Single Spade (Match Original) |
| Thread | 1/8-27 NPT or M10x1 |
| Operating Temp | -40°C to +150°C |
| Certification | ISO9001 |
| Warranty | 6 Months |
| Stock | ✅ In Stock |
The COGENG 179730-0040 is a direct OEM replacement water temperature sensor built for the Sumitomo SH200A3 and SH240A3 hydraulic excavators.
This component continuously monitors engine coolant temperature and feeds real-time data to the dashboard gauge and ECU. Accurate temperature readings are essential for proper fuel injection timing, cold-start glow plug activation, fan control, and overheat protection.
Built to meet or exceed original equipment specifications, this sensor delivers reliable performance in the toughest working conditions—extreme heat, vibration, mud, and moisture.
| Benefit | Description |
|---|---|
| Direct Fit | No modifications — plug-and-play installation |
| OEM Spec | Factory-matched resistance curve for accurate gauge readings |
| Durable | Brass/steel housing resists corrosion and cracking |
| Leak-proof | Pre-installed O-ring ensures a tight seal |
| In Stock | Ready for immediate dispatch |
| Cost-effective | OEM quality at a fraction of the price |
| Item | Qty |
|---|---|
| Temperature Sensor Assembly | 1 |
| Rubber O-ring (Pre-installed) | 1 |
| Protective Shipping Cap | 1 |
| Quick Installation Guide | 1 |
| Model | Engine | Compatibility |
|---|---|---|
| SH200A3 | Mitsubishi / Isuzu | ✅ Direct Fit |
| SH240A3 | Mitsubishi / Isuzu | ✅ Direct Fit |
Also fits other Sumitomo A3-series excavators — verify with original part number.
| Temperature | Resistance (Typical) | Gauge Reading |
|---|---|---|
| 0°C (32°F) | ~30,000 Ω | Cold |
| 25°C (77°F) | ~10,000 Ω | Rising |
| 80°C (176°F) | ~2,000 Ω | Normal (Mid) |
| 100°C (212°F) | ~1,000 Ω | Hot Warning |
| 120°C (248°F) | ~500 Ω | Overheat / Red Zone |
| Tool | Purpose |
|---|---|
| 19mm / 22mm Wrench | Sensor removal & installation |
| Torque Wrench (optional) | Precise tightening |
| Clean Rag | Clean mounting area |
| Flashlight | Locate sensor |
Q: Is this a genuine Sumitomo part?
A: No — this is a high-quality COGENG aftermarket replacement built to OEM specifications.
Q: Will this fit my SH200A3?
A: Yes, it is specifically designed for the SH200A3 and SH240A3.
Q: Do I need sealant?
A: No — the pre-installed rubber O-ring provides a complete seal.
Q: My gauge reads wrong after installation — what should I do?
A: Check the wire connection, ensure the sensor is fully seated, and verify the thread is not leaking.
Q: Is it in stock?
A: ✅ Yes — ready to ship immediately.
| Order Detail | Information |
|---|---|
| MOQ | 1 piece |
| Shipping | DHL / FedEx / UPS / TNT — 3~7 Days |
| Payment | T/T, Western Union, L/C, etc. |
| Warranty | 6 Months |
| Origin | Guangdong, China |
*shipping Details Return Sales*
Sales price:
Please contact COGENG sales customer service for specific prices.
Shipping method:
The specific arrangement will be based on the cargo situation.
Estimated delivery time:
It is based on the shipping time of the logistics company, and the arrival time shown shall prevail.
Contact details are at the bottom.
MerchantReturnPolicy:
The products shipped are not returnable or exchangeable.
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