Heater Relay AZ1630840321 Sinotruk

Product Introduction

This Heater Relay AZ1630840321 is an OEM electrical control component for Sinotruk heavy-duty trucks (e.g., HOWO series). It features a compact black engineering plastic housing with an integrated mounting tab and a 4-pin electrical connector for secure installation. Designed to handle the high current demands of the vehicle’s auxiliary heating system, it adheres to strict OEM quality and performance standards, ensuring reliable switching operation in high-vibration, dusty, and temperature-fluctuating heavy-duty working environments.

Core Functions

1. High-Current Switching: Acts as an electromagnetic switch to control the high-current supply to the vehicle’s auxiliary heater, protecting delicate control switches and wiring from burnout.

2. Heater System Control: Enables the activation and deactivation of the auxiliary heating system, ensuring efficient and safe operation in cold weather conditions.

3. Durable & Reliable Design: The sealed housing and heavy-duty internal contacts resist corrosion and wear, ensuring stable performance even under prolonged use and extreme temperature fluctuations.

4. Easy Installation: The integrated mounting tab and 4-pin connector allow for straightforward installation and replacement, minimizing vehicle downtime during maintenance.

5. OEM Compatibility: Precisely matches the original vehicle’s heater system wiring harness pinouts and current specifications, supporting direct plug-and-play replacement without modification.