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A21-1109111
HongPro
A21-1109111
This A21-1109111 is a premium replacement air filter engineered to deliver exceptional engine protection and performance. Crafted with a high-efficiency, multi-layer microfiber media, it is scientifically designed to achieve a particle filtration efficiency of over 98.5%, effectively trapping harmful dust, dirt, and debris. This ensures only clean air enters the engine combustion system, which is critical for maintaining optimal fuel efficiency and reducing engine wear.
The robust rubber gasket provides a perfect, leak-proof seal for reliable operation. Its rigid resin-impregnated panel resists warping and maintains structural integrity under extreme temperature variations and airflow pressures. By preventing contaminants from entering the engine, this filter directly contributes to prolonged engine life, consistent power output, and lower emissions.
It is a direct, precision-fit replacement, guaranteeing easy installation and maximum compatibility. Trust in this OEM-quality part for superior engine air filtration. Backed by rigorous laboratory testing to meet strict international quality standards (ISO/TS 16949).
This premium air filter is engineered with a high-capacity, multi-layered synthetic media. It is scientifically designed to achieve a particle filtration efficiency of over 98.5%, effectively trapping harmful dust, soot, pollen, and other abrasive contaminants. By ensuring only clean air enters the combustion chamber, it prevents premature engine wear and protects critical components. This advanced filtration technology is your first line of defense for a healthier, longer-lasting engine.
A clean and unrestricted airflow is vital for optimal engine efficiency. Our filter's low-air-resistance design ensures a consistent and high volume of air flow. This promotes a more complete fuel burn, which can lead to improved horsepower and potential fuel savings. By maintaining the ideal air-fuel ratio, the filter helps your engine run smoother and more efficiently from the first installation.
Built to last, the filter features a rigid, resin-impregnated outer frame that resists warping under extreme temperatures and pressure fluctuations. A flexible, high-grade rubber gasket guarantees a perfect, leak-proof seal within the air intake system. Every unit is manufactured in facilities certified to IATF 16949 quality standards, ensuring unparalleled reliability and a direct OEM-fit replacement you can trust.
Unlike standard filters, our advanced media is designed for extended service intervals without compromising performance. The robust construction ensures reliable operation under demanding conditions. By providing long-lasting protection, it reduces waste and the frequency of replacements, making it a more economical and environmentally conscious choice for vehicle owners.
| Technical Parameter | Specification Details |
| Part Number | A21-1109111 |
| Filter Type | Panel-Type, Dry Air Filter |
| External Dimensions (L×W×H) | 298 ± 1 mm × 198 ± 1 mm × 40 ± 1 mm |
| Pleat Height | 32 mm |
| Filter Media Material | High-Efficiency Synthetic Microfiber, Resin-Impregnated |
| Filtration Efficiency | ≥ 98.5% for ISO 12103-1 A4 Fine Test Dust (by weight) |
| Initial Restriction / Pressure Drop | ≤ 0.8 kPa at a rated airflow volume |
| Dust Holding Capacity | ≥ 25 grams |
| Gasket Material | Thermoplastic Rubber (TPR) |
| Temperature Resistance | -40°C to +80°C (Continuous Operation) |
| Frame Material | Stiffened Cardboard, Resin-Treated for Moisture Resistance |
| Quality Certification | Manufactured in an IATF 16949:2016 Certified Facility |
Here are specific application scenarios of Air filter:
Regular driving in city and suburban environments exposes your engine to a unique mix of pollutants, including brake dust, tire debris, and industrial particulates (PM2.5/PM10). Our high-efficiency filter is specifically engineered to capture these fine, abrasive particles. By providing a consistent barrier, it prevents carbon buildup on sensitive engine sensors and ensures smooth, reliable performance for your daily drives, protecting your engine's long-term health.
If your driving frequently takes you on unpaved roads, construction zones, or through agricultural areas, your engine faces a heavy influx of dust and silt. This filter's high Dust Holding Capacity of over 25 grams means it can protect your engine effectively for longer periods under such demanding conditions. The robust frame and secure gasket prevent dust from bypassing the filter media, which is critical for preventing premature engine wear in off-road and rural settings.
Engines operating in heavy, congested traffic are under significant stress, with frequent idling and acceleration demanding optimal airflow. A clogged or low-quality filter can worsen this, leading to rough idling and poor throttle response. This filter's low initial restriction design ensures the engine receives the air volume it needs for efficient combustion during acceleration, helping to maintain fuel efficiency and reduce excessive emissions in challenging stop-and-go driving conditions.
For drivers who require responsive performance during highway merging, overtaking, or carrying heavier loads, clean and unrestricted airflow is non-negotiable. The advanced synthetic media in this filter is designed to maintain structural integrity and high airflow, supporting optimal power output when the engine is under load. This ensures dependable performance and protects the engine during sustained higher-RPM operation.
Integrating this filter into your regular service schedule is a proactive measure for engine care. Replacing a worn-out filter with our OEM-quality equivalent restores proper airflow, which can help normalize fuel trim values and improve combustion efficiency. This simple swap is a cost-effective way to maintain engine performance, optimize fuel consumption, and prevent more costly repairs down the line.
To ensure optimal performance, we recommend replacing your engine air filter every 12 months or 12,000 miles, whichever comes first. For correct installation, first, ensure the vehicle is off and the engine is cool. Locate the air filter housing in the engine bay, unclip or unscrew the cover, and carefully remove the old filter. Before inserting the new A21-1109111 filter, gently clean the housing interior of any debris. Position the new filter, ensuring the rubber gasket is properly seated to create an airtight seal. Securely fasten the housing cover. This simple 5-minute maintenance task safeguards your engine and helps maintain fuel efficiency.
