Water Level Alarm Switch 4H7CL38D33X0A-3825010A 2-Pin Plastic for Chenglong H7H5 Heavy Trucks

Product Appearance Description

This water level alarm switch is made of black engineering plastic, with an installation arrow mark on the probe body and an L-shaped waterproof 2-pin connector at the end, matching the original vehicle interface.

1.The cylindrical probe is designed to be inserted directly into the coolant expansion tank to monitor the liquid level in real time.

2.The connector is integrally injection-molded with excellent waterproof and dustproof performance, adapting to the complex engine compartment environment.

3.The compact design fits the original installation position perfectly, requiring no additional modification.

Product Function Description

1.Core Function: Monitors the liquid level in the coolant expansion tank in real time 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, 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 Chenglong L17H 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
Chenglong	L17H Series	Heavy-duty trucks, commercial vehicles, logistics trucks

Parameter

Item	Specification/Details
Brand Name	Jiechuang
Model Number	HS-3121
OEM Part Number	4H7CL38D33X0A-3825010A
Product Type	Water Level Alarm Switch (2-Pin, Plastic)
Connector	2-Pin Right-Angle Plastic Plug Connector
Mounting Thread	N/A (clip-in mounting)
Housing Material	Engineering Plastic
Compatible Models	Chenglong H7/H5 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 probe, it can work stably in coolant for a long time, is not easy to scale or damage, and has a long service life.

2.The integrated waterproof connector has a high protection level, which can effectively prevent moisture from entering and avoid signal short circuit or failure.

3.Please check the part number, plug type and vehicle model before installation to ensure compatibility. After installation, check if the liquid level alarm function works properly.

4.It is recommended to be installed by professional maintenance personnel. After installation, a liquid level test is required to ensure the switch trigger logic is normal.