Expansion Tank Level Sensor Assembly 812W06125-0012 Sinotruk Sitrak

Product Introduction

This Expansion Tank Level Sensor Assembly 812W06125-0012 is an OEM coolant level monitoring component for Sinotruk heavy-duty trucks. It is designed for SITRAK C7H, G7S, C9H, HOWO T5G, TX7 models. The assembly features a robust black plastic housing, a precision float-type sensing element, a sealed waterproof electrical connector, and a secure mounting flange for direct installation on the coolant expansion tank. Manufactured to strict Sinotruk OEM standards, it provides reliable coolant level detection in high-vibration, high-temperature commercial vehicle operating environments.

Core Functions

1. Coolant Level Monitoring: Continuously detects the coolant level in the expansion tank using a float-type sensor, transmitting real-time level signals to the vehicle’s instrument cluster.

2. Low Level Warning: Triggers a dashboard warning light when the coolant level drops below the safe threshold, alerting the driver to add coolant and prevent engine overheating.

3. Engine Protection: Integrates with the vehicle’s ECU to potentially limit engine power or trigger a safe shutdown in severe low-coolant conditions, safeguarding the engine from damage.

4. Durable & Sealed Design: IP67-rated waterproof and dustproof construction, with high-temperature-resistant materials to withstand coolant exposure and harsh operating conditions.

5. OEM Compatibility: Direct plug-and-play replacement, matching original mounting dimensions, connector pinout, and signal specifications for seamless installation.