For Toyota Prado and Hilux owners seeking reliable OE-grade air filtration, the 17801-30040 Air Filter is a precision-engineered, direct replacement for the AY120TY061 filter. This SEO-optimized guide combines technical specifications, compatibility insights, installation protocols, and performance benefits, leveraging OEM standards and cross-referenced supplier data. 

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**1. Product Overview** 
The 17801-30040 Air Filter is a high-efficiency panel filter designed for Toyota vehicles requiring the AY120TY061 part. Key features include: 
• Material: Synthetic fiber or cellulose media with pleated design for optimal dust capture (99.99% efficiency at 2μm). 

• Design: Rigid galvanized steel or aluminum frame for structural integrity and resistance to deformation. 

• Certifications: Compliant with ISO 9001 and IATF 16949, ensuring OE-level quality and longevity. 


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**2. Technical Specifications** 
| Parameter             | Details                                  | 
|-----------------------|------------------------------------------| 
| Dimensions        | 308mm (L) × 231mm (W) × 50mm (H) | 
| Filtration Grade  | MERV 11–13 (medium efficiency)   | 
| Temperature Range | -30°C to +100°C                 | 
| Weight            | 2–5kg (lightweight yet durable)     | 
| Warranty          | 1–2 years / 60,000–100,000 km  | 

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**3. Compatibility & Applications** 
• Primary Models: 

  • Toyota: Prado 120/150, Hilux (2005–2015), Land Cruiser, RAV4 II. 

  • Cross-Referenced OEM Numbers: AY120TY061, AZ-B22072JC, FA-284. 

• Applications: 

  • Engine air intake systems for diesel and gasoline engines (2.7L, 3.0L). 

  • Compatible with aftermarket brands like D.King, SOLOTU, and JC PREMIUM. 


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**4. Performance Benefits** 
1. Enhanced Engine Protection: Captures dust, pollen, and debris up to 2μm, preventing premature engine wear. 
2. Low Airflow Resistance: Optimized pleat design maintains engine performance and fuel efficiency. 
3. Reusable Frame: Galvanized steel/aluminum frames allow filter media replacement, reducing long-term costs. 
4. Cost Efficiency: Priced at $10–$30, offering OEM quality at competitive aftermarket rates. 

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**5. Installation Guide** 
Tools Required: Screwdriver, torque wrench (10–15 Nm), shop towels. 

Steps: 
1. Locate the Air Filter Housing: Typically a black plastic box near the engine bay. 
2. Remove the Old Filter: 
   • Unclip or unscrew the housing and note the filter’s orientation. 

3. Clean the Housing: Wipe debris using a dry cloth. 
4. Install the 17801-30040 Filter: 
   • Align the new filter with the housing, ensuring proper seating. 

5. Secure the Housing: Reattach clips/screws without overtightening. 

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**6. Maintenance Recommendations** 
• Replacement Interval: Every 30,000–50,000 km or annually. 

• Inspection Signs: 

  • Visible dirt accumulation, reduced engine power, or error codes (e.g., P0171 for lean fuel mixture). 

• Cleaning Tips: For reusable filters, use compressed air or a vacuum (avoid water). 


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**7. SEO-Optimized Keywords** 
• *OE 17801-30040 Air Filter Replacement for AY120TY061* 

• *Toyota Prado 120/150 Engine Air Filter ISO 9001 Certified* 

• *High-Efficiency Synthetic Fiber Air Filter MERV 13* 

• *Symptoms of Clogged Air Filter P0171 Code Fix* 

• *D.King 17801-30040 Cross-Reference Compatibility* 


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Conclusion 
The 17801-30040 Air Filter delivers unmatched filtration performance for Toyota vehicles, combining durability, efficiency, and cost savings. For bulk orders or technical support, consult certified suppliers like Xinxiang D.King Industry or Hebei Ant Auto Parts, ensuring compliance with OEM specifications. 

References 
: Material certifications and reusable frame design. 
: Technical specifications, warranty terms, and ISO compliance. 
: Cross-referenced OEM numbers and compatibility data. 
: Supplier details and pricing from Alibaba listings. 
: Installation tools and preparation steps. 
: Step-by-step filter replacement protocols. 
: Maintenance guidelines and troubleshooting symptoms.