| Parameter | Details |
|---|---|
| Product Name | Engine Coolant Temperature (Water Temp) Sensor |
| Part Number | 2852157 |
| Compatible Brands | Case |
| Compatible Equipment Models | 580M, 580N, 650K |
| Equipment Type | Backhoe Loaders / Loader Backhoes |
| Sensor Type | NTC Thermistor (Coolant Temperature Sender) |
| Material | Brass / Stainless Steel + Rubber Seal |
| Packing | PP bag inside, carton box outside |
| Payment Terms | Western Union, L/C, T/T, MoneyGram, D/A, D/P |
| MOQ | Acceptable trial order (1 piece accepted) |
| Shipping Mode | Air/Sea/Express (FedEx, UPS, DHL, TNT, etc.) |
| Place of Origin | Guangdong, China |
| Brand Name | COGENG |
| Certification | ISO9001 |
| Stock Status | ✅ In Stock |
| Warranty | 6 Months |
| Supply Capacity | 500 PCS |
The COGENG 2852157 Water Temperature Sensor is a high-precision, direct OEM replacement sensor specifically designed for Case 580M, 580N, and 650K backhoe loaders. These popular machines are widely used in construction, agriculture, landscaping, and utility work worldwide.
This sensor monitors engine coolant temperature—one of the most critical parameters for engine performance, fuel efficiency, and longevity. The sensor uses a Negative Temperature Coefficient (NTC) thermistor—as coolant temperature increases, electrical resistance decreases. The ECU (Engine Control Unit) or dashboard gauge sends a reference voltage through the sensor and measures the return signal to calculate precise coolant temperature.
Why Coolant Temperature Monitoring is Critical:
| Function | How Temperature Data is Used |
|---|---|
| Fuel Injection Timing | Adjusts timing based on engine temperature for optimal combustion |
| Cold Start Assistance | Enables glow plugs / intake heaters in cold weather |
| Cooling Fan Control | Engages the fan at high temperatures |
| Warning Systems | Triggers alarms if overheating occurs |
| Emissions Control | Optimizes combustion for reduced emissions |
| Dashboard Gauge | Displays accurate temperature to the operator |
| Engine Protection | Alerts operator to potential overheating |
Manufactured under ISO9001 certified processes, the COGENG 2852157 features a brass/stainless steel housing, premium rubber O-ring, and a precision thermistor element to ensure accurate readings across the full temperature range (-40°C to +150°C).
Why Choose COGENG 2852157?
Direct OEM Replacement: Plug-and-play for Case 580M, 580N, and 650K.
High Accuracy: Precisely calibrated to Case gauge/ECU specifications.
Durable Construction: Brass/stainless steel housing withstands vibration and corrosion.
Leak-Proof: Premium O-ring pre-installed.
In Stock: Ready for immediate shipment with fast shipping.
| Component | Quantity | Description |
|---|---|---|
| Water Temperature Sensor | 1 | Complete sensor assembly with terminal/connector |
| Rubber O-ring / Sealing Washer | 1 | Pre-installed on threaded base |
| Protective Plastic Cap | 1 | For shipping protection only |
| Installation Quick Guide | 1 | Basic instructions |
This sensor is specifically designed for the following Case equipment:
| Model | Equipment Type | Engine | Typical Year Range |
|---|---|---|---|
| Case 580M | Backhoe Loader | Case / Cummins | 1995–2005 |
| Case 580N | Backhoe Loader | Case / Cummins | 2005–2015 |
| Case 650K | Loader Backhoe | Case / Cummins | 1995–2005 |
Additional compatible models (verify before purchase):
| Model | Compatibility |
|---|---|
| Case 580L | ⚠️ Check connector type |
| Case 580SL | ⚠️ Check connector type |
| Case 580SM | ✅ Compatible |
| Case 580SN | ✅ Compatible |
| Case 580T | ⚠️ Newer model – verify |
| Case 580 Super R | ✅ Likely compatible |
| Case 580 Super L | ⚠️ Check connector type |
| Case 550K | ✅ Likely compatible |
| Case 590M | ✅ Likely compatible |
| Case 590N | ✅ Likely compatible |
| Case 570N | ✅ Likely compatible |
⚠️ Important: The 2852157 is widely used across Case 580 and 650 series backhoe loaders. It is used with Case and Cummins engines.
| Model | Engine | Displacement | Configuration |
|---|---|---|---|
| 580M | Case / Cummins 4BT | 3.9L | 4-cylinder turbo diesel |
| 580N | Case / Cummins 4BT | 3.9L | 4-cylinder turbo diesel |
| 650K | Case / Cummins 6BT | 5.9L | 6-cylinder turbo diesel |
Normal Coolant Temperature Ranges:
| Condition | Temperature | Gauge Reading | Action |
|---|---|---|---|
| Cold Start | 0-30°C (32-86°F) | Cold | Glow plugs active |
| Warmup | 30-70°C (86-158°F) | Rising | Normal |
| Normal Operating | 75-95°C (167-203°F) | Mid-range | Normal |
| High Temperature Warning | 100-105°C (212-221°F) | Red zone | Check cooling system |
| Overheat | >105°C (>221°F) | Maximum | Shut down engine |
| Brand | Part Number | Notes |
|---|---|---|
| COGENG | 2852157 | Direct replacement |
| Case (OEM) | 2852157 | Original equipment |
| Case (alternate) | J916364 | Similar (verify) |
| Cummins (OEM) | 3928991 | Similar (verify) |
| Aftermarket | 2852157A | Common cross-reference |
Note: Always match your original sensor part number. 2852157 is the Case OEM number for this sensor.
✅ Direct OEM replacement for:
Case part number: 2852157
✅ Designed For:
Case 580M backhoe loader
Case 580N backhoe loader
Case 650K loader backhoe
✅ Engine Compatibility:
Case / Cummins 4BT (3.9L, 4-cylinder)
Case / Cummins 6BT (5.9L, 6-cylinder)
Other Case / Cummins engines
✅ Electrical Specifications:
Connector: Single spade terminal or 2-pin (verify)
Output: Variable resistance (to gauge or ECU)
Operating Voltage: 12V (gauge circuit) or 5V (ECU)
✅ Mechanical Specifications:
Thread Size: 1/8-27 NPT or M10x1
Hex Size: 17mm, 19mm, or 22mm
Sealing: Rubber O-ring or copper washer
⚠️ Before purchasing, please verify:
| Check Item | Why It's Important |
|---|---|
| Machine Model | 580M, 580N, or 650K |
| Engine Type | Case / Cummins 4BT or 6BT |
| Old Part Number | 2852157 or confirm |
| Connector Type | Single spade or 2-pin (photo recommended) |
| Thread Size | 1/8-27 NPT or M10x1 |
❌ NOT Compatible With:
Case 580E, 580G, 580K (older models – verify connector)
Case 580T, 580V (newer models – verify)
Case 650K with different engine (verify)
Non-Case equipment (different gauge calibration)
Q1: What are the symptoms of a failing water temperature sensor on a Case 580M/580N?
A: Common symptoms include:
Temperature gauge reads 0°C or stays at cold (even when engine is hot).
Temperature gauge pegs at maximum (overheating warning).
Engine derates (reduced power) due to incorrect ECU readings (electronic models).
Hard starting in cold weather (no cold-start assist).
Cooling fan runs constantly or never runs.
Poor fuel economy.
Engine overheating without warning.
Q2: Is this a genuine Case OEM part?
A: No. COGENG is an aftermarket manufacturer (ISO9001) . Our parts are built to OEM specifications, offering the same fit and function at a reduced cost.
Q3: Will this sensor fit my Case 580M?
A: Yes – the 580M is one of the primary compatible models.
Q4: Will this sensor fit my Case 580N?
A: Yes – the 580N is one of the primary compatible models.
Q5: Will this sensor fit my Case 650K?
A: Yes – the 650K is one of the primary compatible models.
Q6: Will this sensor fit my Case 580L?
A: ⚠️ Possibly – the 580L is a similar model, but check the connector type before ordering.
Q7: Will this sensor fit my Case 580 Super R?
A: ✅ Likely – the 580 Super R is a similar generation and should use the same sensor.
Q8: What is the correct torque for this sensor?
A: 15–25 Nm (11–18 ft-lbs) . Do not overtighten – the brass housing can crack.
Q9: Can I install this sensor myself?
A: Yes, with basic mechanical skills (15–20 minutes). If unsure, professional installation is recommended.
Q10: Is this sensor in stock for immediate shipping?
A: Yes – COGENG maintains stock of 500+ units. Orders ship within 24–48 hours.
Q11: How long does shipping take?
A:
Express (DHL/FedEx/UPS/TNT): 3–7 business days worldwide.
Air freight: 7–12 days.
Sea freight: 20–40 days.
Q12: How do I place a trial order?
A: Contact your COGENG distributor. MOQ is 1 piece.
Q13: What is the warranty?
A: COGENG provides a 6-month warranty against manufacturing defects.
*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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