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Product Details
Product Overview
This high-quality Water Temperature Sensor, part number 4954905, is specifically designed for the Cummins QSB6.7 diesel engine platform. As a critical component in the engine’s cooling system, this sensor provides accurate temperature readings to the Engine Control Module (ECM), ensuring optimal combustion, fuel efficiency, and protection against overheating.
Manufactured to OEM specifications, this sensor is a direct replacement for the original 4954905 part. It is commonly used in a wide range of heavy equipment applications where the QSB6.7 engine is installed, including excavators, wheel loaders, generators, and agricultural machinery. This sensor ensures reliable performance in demanding construction, industrial, and marine environments.
Key Features & Benefits
OEM Specification Compliance: Manufactured to match the exact dimensions, thread pitch, and electrical resistance of the original Cummins 4954905 sensor, guaranteeing a direct plug-and-play installation.
High-Temperature Resistance: Built with durable materials and sealed electronics to withstand the extreme heat and vibration found in heavy-duty diesel engine compartments.
Precise Temperature Monitoring: Provides accurate and rapid response to coolant temperature changes, allowing the ECM to adjust fuel injection timing and cooling fan operation for peak engine efficiency.
Overheat Protection: Reliable signal transmission helps prevent engine overheating, reducing the risk of severe internal damage, head gasket failure, and costly downtime.
Broad Application Suitability: Ideal for various industrial sectors including construction, agriculture, material handling, and power generation, offering a versatile solution for fleet maintenance.
Cost-Effective Replacement: A premium aftermarket alternative to the dealer part, providing significant cost savings without compromising on fitment or operational reliability.
Technical Specifications
Specification
Detail
Part Number
4954905
Engine Model
Cummins QSB6.7
Type
Water Temperature Sensor (Coolant Temperature Sensor)
Material
Brass / High-Temperature Plastic
Connector Type
2-Pin / OEM Standard
Thread Size
OEM Standard (Typically 3/8″ NPT or M16)
Weight
1 kg (approx. 2.2 lbs)
Place of Origin
Guangdong, China
Warranty
6 Months
OEM Cross-Reference
This sensor is a direct cross-reference for the following OEM part numbers:
Cummins: 4954905
Replaces: 4954905
Note: Always verify the physical connector shape, thread size, and electrical resistance against your original sensor to ensure correct compatibility for your specific engine configuration.
Compatibility
This water temperature sensor is commonly used for the following engine and equipment applications:
Asia-Pacific: Singapore, Shanghai, Tokyo, Busan, Sydney
Middle East & Africa: Dubai, Jebel Ali, Jeddah, Durban, Lagos
South America: Santos, Buenos Aires, Callao, Cartagena
We maintain strong export experience, handling all necessary customs documentation and international trade compliance. Bulk orders are packed securely in cartons and pallets to ensure safe transit to your warehouse or job site.
Quality Assurance
Manufacturing Standards: Produced in ISO 9001:2015 certified facilities, ensuring consistent quality control and traceability.
Testing: Each sensor undergoes outgoing inspection, including electrical resistance testing and physical dimension verification against OEM blueprints. A machinery test report and video inspection are available upon request.
Warranty: Backed by a 6-month warranty against manufacturing defects. After-warranty online technical support is available to assist with any installation or performance inquiries.
FAQ
Q1: How do I verify this 4954905 sensor fits my specific engine?
First, confirm your engine is a Cummins QSB6.7. Visually compare the sensor’s connector (2-pin shape) and thread size to your original part. If you have the old sensor, measure the thread diameter and pitch. Our part is built to OEM dimensions, but variations exist in some early or modified engine builds. Contact us with your engine serial number for a definitive fitment check.
Q2: What are common symptoms of a failing water temperature sensor?
Common signs include: erratic temperature gauge readings (spiking or dropping), hard starting (especially in cold weather), poor fuel economy, black smoke from the exhaust, the engine cooling fan running constantly, or an illuminated Check Engine Light with codes related to coolant temperature. Replacing a faulty sensor promptly prevents the ECM from using incorrect fueling maps.
Q3: Is installation difficult, and what tools are required?
Installation is a straightforward DIY task for a qualified mechanic. You will typically need a deep socket or wrench matching the sensor’s hex size (often 19mm or 21mm). Always install the sensor with a small amount of thread sealant (e.g., Teflon tape or liquid sealant) to prevent coolant leaks. Do not overtighten, as this can damage the brass housing. After installation, run the engine to operating temperature and check for leaks at the sensor base and connector.
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