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The Engine Air Filter (OEM 1001787) is an essential component of the engine air intake system used in the ROX 01 luxury SUV, also known internationally as the Polar Stone 01 or Jishi 01. This filter is designed to protect the 1.5L turbocharged range‑extender petrol engine by preventing dust, sand particles, and airborne contaminants from entering the combustion system.

The filter uses high‑efficiency composite fiber filtration media with a pleated structure, which increases filtration surface area while maintaining optimal airflow. This design allows the filter to capture up to 99.5% of fine particles including sand, pollen, and PM2.5 contaminants, ensuring clean air reaches the engine.

Vehicles operating in Qatar and GCC environments frequently encounter harsh driving conditions such as desert sand, airborne dust, and high temperatures. These conditions can quickly clog engine air filters and reduce engine efficiency. Regular replacement of the air filter helps maintain proper air‑fuel mixture, improve fuel efficiency, and extend engine life.

The air filter is typically installed inside the engine air intake housing located in the engine bay, allowing straightforward replacement during routine maintenance.

Common symptoms of a clogged air filter include:

• Reduced engine performance
• Increased fuel consumption
• Slow throttle response
• Excessive dust accumulation in the intake system

Replacing the engine air filter helps restore proper airflow and maintain optimal engine performance.

⚠️ Always verify vehicle compatibility using the VIN (Vehicle Identification Number) before purchasing to ensure correct fitment.