The DENSO 447220-4771 is a high-quality automotive air conditioning (AC) compressor that plays a vital role in keeping your vehicle cool and comfortable. As one of the most trusted names in the auto parts industry, DENSO delivers OEM-level performance, reliability, and durability in all its components, and the 447220-4771 is no exception. If your AC system is failing or not delivering the cold air you expect, replacing the compressor with this model could be the solution.

What Is the DENSO 447220-4771?

The DENSO 447220-4771 is an AC compressor unit used in a variety of vehicles—especially popular among Japanese and Korean models such as Toyota, Honda, Nissan, and others. This part number refers to a specific type of rotary compressor that is engineered for high efficiency and long service life. Whether you’re replacing a worn-out unit or upgrading your current system, this model ensures optimal refrigerant compression and flow.

Why Is the AC Compressor Important?

The AC compressor acts as the heart of your vehicle’s air conditioning system. It compresses and circulates the refrigerant gas, allowing it to cool down and flow through the system. A failing compressor can cause:

• Warm air from AC vents

• Strange noises when the AC is on

• Fluid leaks

• Complete system failure

If you experience any of these issues, the DENSO 447220-4771 could be a direct-fit replacement to restore cooling performance.

Key Features of the DENSO 447220-4771

• OEM-Grade Quality: DENSO is known for producing original equipment for global vehicle manufacturers. You can expect factory-level performance and fitment.

• High Durability: Designed to handle high pressure and temperature fluctuations, making it ideal for long-term use.

• Quiet Operation: Thanks to precision engineering, the 447220-4771 minimizes noise and vibrations.

• Energy Efficient: Helps improve fuel efficiency by reducing the load on the engine.

• Pre-Oiled and Ready for Installation: Some units come pre-filled with the correct type of oil, but always double-check compatibility and levels before installation.

Compatible Vehicles

The DENSO 447220-4771 is compatible with several makes and models. While commonly used in vehicles from Toyota, Honda, Lexus, Nissan, and Mazda, it’s essential to verify the part’s compatibility using your vehicle’s VIN or by consulting a trusted parts dealer.

Installation & Maintenance Tips

Proper installation and maintenance are crucial for performance and lifespan:

1. Flush the System: Before installing a new compressor, flush the entire system to remove debris and contaminants.

2. Replace Other Components: Consider replacing the receiver-drier or accumulator and expansion valve for optimal performance.

3. Check Oil Levels: Add the correct amount and type of refrigerant oil (usually PAG oil).

4. Vacuum the System: Use a vacuum pump to remove air and moisture before charging with refrigerant.

5. Leak Test: Ensure there are no leaks in the system after installation.

If you’re not experienced in AC repair, it’s recommended to have a certified technician handle the installation.

Where to Buy the DENSO 447220-4771

You can purchase this compressor from:

• Authorized DENSO retailers

• Online platforms like RockAuto, eBay, Parts Geek, Amazon

• Local auto parts stores

Always check for authenticity and warranty coverage before purchasing. Fake or low-quality compressors can damage your AC system and void warranties.

Conclusion

When your vehicle’s air conditioning system starts to underperform, the DENSO 447220-4771 offers a dependable and efficient solution. Its OEM-level performance, energy efficiency, and compatibility with many vehicle models make it a top choice among both professional mechanics and DIY enthusiasts.

Investing in a quality compressor like the DENSO 447220-4771 ensures long-term reliability, comfort during hot months, and improved vehicle performance. Be sure to consult your vehicle’s specifications and a trusted technician to ensure the right fit.

FAQs About DENSO 447220-4771

Q: What type of refrigerant is used with this compressor?

A: Most DENSO compressors, including the 447220-4771, are compatible with R-134a refrigerant.

Q: Does this compressor come with oil?

A: Many units are pre-oiled, but it’s crucial to check and adjust oil levels as needed during installation.

Q: Can I install the DENSO 447220-4771 myself?

A: If you have experience with AC systems and the right tools, you can. Otherwise, it’s best to seek help from a certified mechanic.

Q: Is this compressor brand new or remanufactured?

A: It depends on the supplier. Be sure to confirm if you’re getting a new OEM part or a remanufactured unit.

Q: How do I confirm this part fits my car?

A: Use your vehicle’s VIN or check the OEM part number to verify compatibility. Always double-check with the supplier before purchase.