Water Level Alarm Switch 3690010-KE300 M18×1.5 3-Pin Plastic Float Type for New Dongfeng Tianlong Heavy Trucks

Product Appearance Description

This water level alarm switch features an all-black plastic structure with an integrated float design and M18×1.5 thread, fitting the installation interface of Dongfeng New Tianlong models.

1.The probe is a black plastic long rod with a white float at the end, which can be directly inserted into the coolant expansion tank to monitor the liquid level in real time through the float’s rise and fall.

2.The middle section is a standard M18×1.5 external thread that can be directly screwed into the water tank installation position, with a built-in hexagonal fixing position for easy installation and good sealing performance.

3.The end is an integrated black plastic plug (5-pin design) that fits the original vehicle interface, ensuring stable connection, preventing loosening and providing strong protection.

Product Function Description

1.Core Function: Monitors the liquid level in the coolant expansion tank in real time through the float structure, and triggers an alarm signal when the level drops below the safe value.

2.Signal Transmission: When the liquid level is low, the switch sends an electrical signal to the vehicle ECU or instrument panel through the plug, activating the warning light or buzzer to alert the driver to add coolant in time.

3.Fault Warning: Effectively prevents engine overheating and damage caused by insufficient coolant, improving vehicle operation safety.

4.Compatibility: Designed for Dongfeng New Tianlong series models, it can directly replace the original part to solve problems such as non-functional or false liquid level alarms.

Applicable Models

Brand/Manufacturer	Model Series	Application Scenario
Dongfeng	New Tianlong Series	Heavy-duty trucks, commercial vehicles, logistics trucks

Parameter

Item	Specification/Details
Brand Name	jiechuang
Model Number	HS-3104
OEM Part Number	3690010-KE300
Product Type	Water Level Alarm Switch (3-Pin, Plastic)
Connector	3-Pin Plastic Plug Connector (Black)
Mounting Thread	M18×1.5
Housing Material	Plastic (Black) with Float Sensor
Compatible Models	New Dongfeng Tianlong Heavy Trucks
Protection Grade	IP67
Warranty Period	12 months or 100,000 km (whichever comes first)

Product Details

Product Specifications and Trade Terms

Item	Specification/Details
Warranty Period	12 months or 100,000 km (whichever comes first)
Payment Terms	T/T, PayPal, Western Union
Port of Loading	Ningbo Port or Shanghai Port
Lead Time	7-15 working days after deposit
Packing	50 pcs per carton with foam
Shipping Method	By sea / air / express (DHL/FedEx/UPS)
Sample Policy	Free samples, buyer pays freight
After-Sales Support	Itemcement for defective items

Supplementary Note

1.Made of corrosion-resistant plastic material and float structure, it has strong anti-fouling performance and is not easy to affect monitoring accuracy due to scale, with a long service life.

2.The M18×1.5 threaded mounting seat fits the water tank interface of Dongfeng New Tianlong models with a built-in sealing structure for easy installation.

3.Please check the thread specification, plug type and vehicle model before installation to ensure compatibility. After installation, perform a liquid level test to ensure the switch trigger logic is normal.

4.It is recommended to be installed by professional maintenance personnel to avoid leakage or signal abnormalities caused by improper installation.