COGENG 6261-81-6901 Engine Coolant Temperature Sensor Komatsu OEM

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COGENG Premium Engine Coolant Temperature Sensor (ECT) for Komatsu | Replaces 6261-81-6901 & 6261816901 | Accurate Temperature Monitoring

Name: COGENG Premium Engine Coolant Temperature Sensor (ECT) for Komatsu | Replaces 6261-81-6901 & 6261816901 | Accurate Temperature Monitoring
Brand: Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revol
Availability: InStock
Rating: 5 (1 reviews)

Product name: KOMATSU Water Temp Sensor

Part No: 6261-81-6901 6261816901

Model Number:For PC200-8 WA200-6 WA250-6 WA320-6 WA380-6 WA470-6 WA500-6

Material:Lron+Rubber

Packing:PP bag inside, carton box outside

Payment Terms:Western Union, L/C, T/T, MoneyGram, D/A, D/P

MOQ:Acceptable trial order

Shipping Mode:By air, by sea, by express(Fedex, UPS, DHL, TNT, etc.)

Place of Origin:Guangdong, China

Brand name:COGENG

CertifiCATEEion:ISO9001

Supply :500PCS

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Desciption

PRODUCT IDENTIFICATION

Parameter	Specification
COGENG Part Number	6261-81-6901 (Replacement)
OEM Equivalent	Komatsu 6261-81-6901, 6261816901
Product Type	Engine Coolant Temperature Sensor (ECT)
Sensor Type	NTC Thermistor (Negative Temperature Coefficient)
Output Type	Variable resistance (analog sender)
Application	Engine coolant temperature monitoring
Compatible Models	Multiple Komatsu excavator, bulldozer, and heavy equipment models

CROSS REFERENCE GUIDE

Brand	Part Number
COGENG	6261-81-6901, 6261816901
Komatsu	6261-81-6901, 6261816901
Interchange	6261-81-6902, 6261-81-6903, 600-825-1510, 7861-92-3380

Decompose pictures

Key Technical Features
High-Accuracy Sensing: Utilizes advanced thermistor technology to provide real-time, ±1% precision temperature readings, enabling proactive engine management.
Robust Construction: Manufactured with corrosion-resistant materials and IP67-rated sealing, ensuring durability in extreme environments (temperature range: -40°C to +130°C).
Plug-and-Play Compatibility: Direct replacement for original Komatsu components, maintaining factory calibration for seamless integration with excavators, bulld, and loaders.
Fail-Safe Diagnostics: Triggers immediate ECU alerts for abnormal temperature fluctuations, preventing catastrophic engine failures and reducing downtime.
Operational Advantages
✅ Extended Engine Lifespan: Prevents overheating damage to cylinder heads, gaskets, and pistons.
✅ Fuel Efficiency Optimization: Enables optimal combustion timing by delivering precise thermal data to the engine control unit.
✅ Maintenance Cost Reduction: Early fault detection minimizes secondary component stress and repair expenses.
✅ Vibration-Resistant Design: Maintains signal integrity even under high-impact operational conditions.
Parts list

NO	Number	Name	Qty
1	6261-81-1900	Sensor, Pressure	1
2	01252-60520	Bolt, Hexagon Socket Head	1
3	01640-20508	Washer	1
4	6275-81-9770	Bracket	1
5	01435-01020	Bolt	2
6	6754-81-2701	Sensor, Temperature	1
7	01252-60416	Bolt, Hexagon Socket Head	1
8	01640-20408	Washer	1
9	6271-81-9201	Sensor, Revolution	1
10	01435-00820	Bolt	1
11	6261-81-2902	Sensor Assembly	1
12	01435-00820	Bolt	1
13	6261-81-6901	Sensor Assembly	1
14	6271-81-1940	Switch, Pressure	1

Installation decomposition diagram

High frequency problem:

1: Can it be used for SAA6D140 engines?

❌ No, this engine must use 6261-82-1100 (thread specification M18×1.5)

2: How to detect the signal line normally?

Measurement ECU terminal:

When the key is ON: Voltage between 1#-2# ≈ 4.8~5.2V

At idling speed of 90°C: voltage ≈ 0.4~0.6V

3: Is it common to 6261-81-6900?

⚠️ No! 6900 is 2-Pin simple version (unshielded anti-interference design)

Frequently Asked Questions

A. When will get the items after I place order?

Q. Once your payment is confirmed,we will arrange the goods within 1~4 days; if not in stock, we will inform you before placing the order?

A. If I only know the excavator model, but can not offer parts No.,what should I do ?

Q. If possible, you can send us pictures of old products, nameplate or the size for reference.

A. How can you guarantee the quality??

Q. We will 100% test the goods before delivery. We also support video inspection.

A. How long will it take to delivery to my address??

Q. The normal delivery time is 3-7 days, depending on which country you are in.?

A : Which delivery method will you choose?

Q : By sea, air or express(DHL,Fedex,TNT, UPS, EMS etc.)，Sometimes we will arrange as the customer's demand.

A: What's package? Can you give me the package according my requirement??

Q. We usually packed by standard exported box or carton. And yes we can pack as per your requirement.

A: Can the price be cheaper?

Q: Of course, you will be offered a good discount for a big amount.

A: Why should I choose to buy from you?

Q:Our advantages: 100% quality assurance, develop and manufature follow original ones;Quick response within 24 hours; Small order allowed;Reasonable stock and timely delivery;Neutral packing, customized packing are allowed. Positive customer feedback from abroad market;Excellent after-sales service.

A : Which payment terms can you accept?

Q : Paypal. Western Union, Bank Transfer, T/T...

Contact COGENG

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About us: Welcome to the official website of GAOGENG(COGENG) has their own high-quality mining machinery components famous factory . We specialize in the production and distribution of top-notch products such as Excavator Solenoid Valve, Pressure Switch, Revolution Sensor, Wiring Harness, Throttle Motor, Oil Pressure Switch, and Water Temp Sensor, specifically designed for renowned brands in the mining industry:
Caterpillar®,JohnDeere®,Komatsu®,Case®,Volvo®,Hitachi®,Sumitomo®,Doosan®,Hyundai®,
Liebherr®,JCB®.

Products: Excavator Solenoid Valve; Excavator Wiring Harness; Excavator Motors; Excavator Pressure Sensor; Excavator Engine Oil Sensor; Excavator Water Temp Sensor; Excavator Control Panel; Excavator Switch Parts

Contact Us

Room B215, Building B, Yingfeng NO1192, Zhongshan Avenue Middle, Tianhe District GuangZhou

hugo@cogeng.net

+86 18529131515

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