DENSO HH79K5 Upstream Air Fuel Level Sensor K20A3

( Brand: Denso ), ( Manufacturer Part Number: HH79K5 ), ( Part Type: Fuel Sensor ), ( Placement On Vehicle: Upstream ), ( Product Warranty: 12 Month Warranty ), ( Part Info: Air / Fuel Ratio Sensor Oe Style Denso Is The O.e. Manufa. ), ( Years: 2002 2004 2005 2003 02 04 05 03 ), ( Makes: Honda Acura ), ( Models: Civic Rsx ), ( Mfr Label: Air / Fuel Ratio Sensor Oe Style ), ( Important: Please Read All Notes Before Making This Purchase ), ( Cs-sku: 400 )

Review DENSO Upstream Air Fuel Ratio Sensor Honda Acura fits CIVIC RSX 2002–2005

The DENSO HH79K5 Upstream Air Fuel Ratio Sensor is an essential component of the fuel delivery system in select Honda and Acura models, including the 2002-2005 Honda Civic RSX with the K20A3 engine. This high-performance sensor is designed to provide precise and reliable measurements of the air-fuel mixture in the engine's intake manifold, ensuring optimal engine performance and efficient combustion.

The DENSO HH79K5 sensor features a heated zirconia element that allows for stable and accurate measurements in various operating conditions. The sensor's upstream positioning in the intake tract enables it to detect the air-fuel mixture before it enters the engine's cylinders, providing real-time feedback to the engine control unit (ECU) for adjustments to the fuel injection and ignition timing.

The sensor housing is made of durable materials and is designed to withstand the harsh conditions of the engine bay, ensuring a long service life. The sensor also comes with a built-in heater element, which maintains the sensor's operating temperature for improved performance in cold weather conditions.

Installation of the DENSO HH79K5 sensor is straightforward, with plug-and-play connectors that match the original equipment. The sensor's electrical connections are color-coded for easy identification, and the included wiring harness simplifies the installation process.

In summary, the DENSO HH79K5 Upstream Air Fuel Ratio Sensor is a high-quality, precision-engineered component that delivers accurate and reliable measurements of the air-fuel mixture in the intake manifold of select Honda and Acura models. Its durable construction and easy installation make it an excellent choice for maintenance and performance upgrades.

Denso HH79K5 Upstream Air Fuel Ratio Sensor for 02-05 Honda Acura Civic RSX K20A3: A Detailed Analysis

The Denso HH79K5 Upstream Air Fuel Ratio Sensor is a crucial component in the fuel delivery system of 02-05 Honda Acura Civic RSX K20A3 engines. This sensor measures the amount of air and fuel mixture entering the engine's combustion chamber and sends this data to the engine control module to ensure optimal fuel-air ratio for efficient combustion. In this analysis, we will discuss the pros and cons of buying this Denso sensor.

1. OEM Replacement: The Denso HH79K5 is an Original Equipment Manufacturer (OEM) sensor, meaning it is engineered and manufactured by the same company that originally supplied the sensor for your vehicle. This ensures a perfect fit and optimal performance.

2. Improved Driveability: A faulty air fuel ratio sensor can lead to poor engine performance, such as rough idling, stalling, and hesitation during acceleration. Replacing the sensor with a new one, such as the Denso HH79K5, can restore the vehicle's driveability and improve overall engine performance.

3. Long-Lasting: Denso is known for its high-quality sensors, and the HH79K5 is no exception. The sensor is designed to last for a long time, providing reliable performance and reducing the need for frequent replacements.

4. Enhanced Fuel Efficiency: By maintaining the correct fuel-air ratio, the Denso HH79K5 sensor can help improve fuel efficiency, resulting in cost savings on fuel and reduced emissions.

1. Cost: The Denso HH79K5 sensor is more expensive than some aftermarket alternatives. However, its OEM quality, long-lasting design, and performance benefits justify the investment for many consumers.

2. Installation: Installing the sensor may require some technical expertise, especially if you are not familiar with the engine compartment layout or sensor removal and installation procedures. It is recommended to use a professional mechanic or follow detailed instructions from the manufacturer or a trusted automotive resource.

The Denso HH79K5 Upstream Air Fuel Ratio Sensor is an excellent investment for 02-05 Honda Acura Civic RSX K20A3 owners seeking optimal engine performance, improved driveability, and long-term reliability. Although it may come with a higher cost compared to some aftermarket sensors, the benefits it provides in terms of OEM quality, enhanced fuel efficiency, and long-lasting design make it a worthwhile investment.

If you are experiencing issues with your air fuel ratio sensor or wish to maintain your vehicle's engine performance, consider investing in the Denso HH79K5 Upstream Air Fuel Ratio Sensor. You can purchase it from a trusted automotive parts supplier or your local dealership to ensure authenticity and quality. Remember to follow the installation instructions carefully or consult a professional mechanic for a hassle-free installation process.

Details:

Manufactured to detect the amount of exhaust gas air fuel ratio. Air / Fuel Ratio Sensor - OE DENSO is.E. Acura RSX 2002 - 2004 K20A3 Manual. Honda Civic 2002 - 2005.

Manufacturer / Direct Fit Air Fuel Ratio Sensor; OE. Features zircon solid electrolyte. Highly accurate. Easy installation.

Constructed from durable material.

part #: hh79k5 prices

• $96.50-$291.37

specifications acrasensor:

• for models: Rsx, Civic
• for makes: Honda, Acura
• for years: 2002-2005
• brand: Denso
• mpn: Hh79k5
• part type: Fuel Sensor
• placement on vehicle: Upstream
• product warranty: 12 Month Warranty
• part info: Air / Fuel Ratio Sensor Oe Style Denso Is The O.e. Manufa.
• years: 2002 2004 2005 2003 02 04 05 03
• makes: Honda Acura
• models: Civic Rsx
• mfr label: Air / Fuel Ratio Sensor Oe Style
• important: Please Read All Notes Before Making This Purchase
• cs-sku: 400

shipping acrasensor:

• transit: 4-10 Days
• type: Fixed
• service: FedEx Ground or FedEx Home Delivery
• cost: $0.00
• carrier: FedEx
• class: Standard

offer acrasensor:

• sold: 0
• availability: In Stock
• quantity: 1
• started: June 27, 2025
• options: Ship-to-home

returns acrasensor:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

payments acrasensor:

• other
• credit card: Mastercard
• wallet: Apple-pay

seller acrasensor:

• rating: 95.3%
• # reviews: 50224
• city: Boaz, Alabama

general acrasensor:

• Car Truck Parts Accessories > Air Fuel Delivery > Air Intake Fuel Sensors
• condition: New

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