DENSO AIR / FUEL RATIO SENSOR OE STYLE 99XCQB Level Upstream K20A3

( Brand: Denso Air / Fuel Ratio Sensor Oe Style ), ( Manufacturer Part Number: 99XCQB ), ( Part Type: Air Fuel Ratio Sensor ), ( Engine: K20a3 ), ( Compatible Make/model: Acura Rsx ), ( Compatible Years: 2002 2004 2003 02 04 03 ), ( Position: Upstream ), ( Fitment Info: Air / Fuel Ratio Sensor Oe Style Denso Is The O.e. Manufa. ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review DENSO AIR / FUEL RATIO SENSOR OE STYLE Upstream Acura fits RSX 2002–2004

The DENSO AIR FUEL Sensor 99xcqb is a crucial component in the fuel delivery system of select Acura RSX models with the K20A3 engine, manufactured between the years 2002 and 2004. This sensor plays a vital role in maintaining optimal engine performance and ensuring the vehicle meets emissions standards.

This upstream oxygen sensor, specifically designed for the Acura RSX, is equipped with advanced features to provide highly accurate and reliable readings of air-fuel ratio (AFR) in the exhaust gases that exit the engine. This real-time information is essential for the vehicle's engine control unit (ECU) to adjust the fuel mixture to maintain the ideal AFR for efficient combustion and reduced emissions.

The DENSO AIR FUEL Sensor 99xcqb is a zirconia oxygen sensor, which is known for its excellent sensitivity and durability. Zirconia sensors contain a ceramic element coated in a thin layer of platinum, which reacts with oxygen in the exhaust gases to produce a voltage proportional to the oxygen concentration. The sensor's design includes a heating element that ensures the sensor operates at a stable and effective temperature, even under extreme conditions.

The sensor housing is engineered to be robust and resilient, with a protective shield to minimize the impact of engine heat and debris. The sensor also features a built-in thermal element that helps regulate the sensor's temperature, ensuring consistent readings and long-lasting performance.

Installation of the DENSO AIR FUEL Sensor 99xcqb is a straightforward process, typically involving the removal of a few bolts and the replacement of the old sensor with the new one. Proper installation and the correct use of gaskets and seals are essential to ensure a leak-free connection and maintain the effectiveness of the sensor.

In summary, the DENSO AIR FUEL Sensor 99xcqb is a high-performance, durable, and precise oxygen sensor designed specifically for the Acura RSX (2002-2004) with the K20A3 engine. Its advanced features ensure accurate readings of air-fuel ratio, enabling the engine to maintain optimal performance while minimizing emissions. With robust construction and a straightforward installation process, this sensor is a top choice for vehicle owners seeking reliable engine management and enhanced driving experience.

Pros and Cons of Buying Denso Air Fuel Sensor 99xcqb for Acura RSX (2002-2004) K20A3 Engine

The Denso 99xcqb Air Fuel Sensor is a popular choice among car enthusiasts and mechanics for its high performance and reliability. This sensor is specifically designed for the Acura RSX (2002-2004) models with the K20A3 engine. In this article, we will discuss the advantages and disadvantages of buying this sensor to help you make an informed decision.

1. Improved Engine Performance: The Denso Air Fuel Sensor provides accurate and real-time data on the air/fuel mixture in the engine, allowing for optimal fuel delivery and combustion. This results in improved engine performance and increased power.

2. Enhanced Fuel Efficiency: By ensuring the correct air/fuel ratio, the Denso sensor helps to reduce fuel wastage and improve fuel economy. This is beneficial for both the environment and your wallet.

3. Reliability: Denso is a well-known and trusted brand in the automotive industry. The 99xcqb sensor is known for its durability and reliability, reducing the need for frequent replacements.

4. OEM (Original Equipment Manufacturer) Quality: The Denso Air Fuel Sensor is an original equipment manufacturer (OEM) part, meaning it is manufactured to the same standards as those used by Acura when assembling the RSX. This ensures a perfect fit and function.

5. Compatibility: The Denso 99xcqb sensor is specifically designed for the Acura RSX (2002-2004) K20A3 engine, ensuring a seamless installation process.

1. Cost: The Denso Air Fuel Sensor is a high-performance and reliable part, which comes with a higher price tag compared to aftermarket alternatives.

2. Complex Installation: While the installation process is not overly complicated, it may require some mechanical knowledge and tools. It is recommended to consult a professional mechanic for installation to ensure proper function.

The Denso Air Fuel Sensor 99xcqb is an excellent investment for Acura RSX (2002-2004) owners seeking improved engine performance, enhanced fuel efficiency, and OEM quality. Although it comes with a higher cost and a slightly complex installation process, the benefits far outweigh the cons.

If you are an Acura RSX (2002-2004) owner looking to upgrade your engine performance and fuel efficiency, and you value reliability and OEM quality, we highly recommend the Denso Air Fuel Sensor 99xcqb. It may require a higher initial investment and professional installation, but the long-term benefits and peace of mind are well worth it.

Details:

Sensor Type: Wide-Band. Detailed Applications Years: Vehicle: Engine: Transmission: 2002 - 2004 Acura RSXK20A3Manual. Product Specifications Wiring Harness length : 10.24 in. Features zircon solid electrolyte.

Upstream Denso Air Fuel Ratio Sensor fits Acura RSX 2002 - 2004 K20A3 99XCQB: Position: Brand: condition: New Notes: / - OE DENSO is.E. Universal Or Specific Fit. Wire Quantity: 4. Constructed from durable material.

Highly accurate. Manufacturer / Direct Fit Air Fuel Ratio Sensor; OE, Features:Manufactured to detect the amount of exhaust gas Air Fuel Ratio. Easy installation.

part #: 99xcqb prices

• $231.95-$257.98

specifications acrasensor:

• for models: Rsx
• for makes: Acura
• for years: 2002-2004
• brand: Denso Air / Fuel Ratio Sensor Oe Style
• mpn: 99xcqb
• part type: Air Fuel Ratio Sensor
• engine: K20a3
• compatible make/model: Acura Rsx
• compatible years: 2002 2004 2003 02 04 03
• position: Upstream
• fitment info: Air / Fuel Ratio Sensor Oe Style Denso Is The O.e. Manufa.
• manufacturer warranty: 12 Month Warranty
• attention: Read Full Description To Confirm Fitment
• cs-sku: 400

general acraSensor:

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

seller acraSensor:

• rating: 99.1%
• # reviews: 23727
• city: South Dartmouth, Massachusetts

offer acraSensor:

• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: April 3, 2026

shipping acraSensor:

• type: Fixed
• service: Economy
• cost: $0.00
• class: Economy
• transit: 4-7 Days

payments acraSensor:

• credit card: Diners-club
• other
• wallet: Apple-pay

returns acraSensor:

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

Denso Air / Fuel Ratio Sensor Oe Style 99XCQB Is Similar To:

• 065500-2820 Denso Acura Integra Oem Secondary Oxygen Sensor Ratio (27.6% similar) Get business information that counts. Shipping carrier domestic USPS first-class...(April 17th, 2018)
• 079800-5410-079800-5410-0798005410 Denso Acura Rsx Wire Plug Connector Sensor Vacuum Actuator Harness (19.1% similar) You are looking at one good used wire plug connector harness end clip off the valve Sensor, as shown in photos. MRW488 stock MW559 Hollander it is pulled out ready to ship. It is out of a 2002 acura rsx base 2 door hatchback with. Thanks good luck. Exterior color code was: NH-623 NH-623M interior ...(May 15th, 2018)
• 90-91 0943853 Acura Integra Oem Idle Air Control Valve Iacv Denso (14.5% similar) 90 91 acura integral Oem idle Air control valve ICC Denso this is a idle Air control valve removed from a 91 acura integral ls. Shipping carrier domestic USPS first class...(February 24th, 2016)
• 136200-1530 1997 Acura Tl 2.5l Vacuum Valve Vsv Denso Oem (20.8% similar) 1997 Acura Tl 5l vacuum valve vs Denso Sensor used. All electrical items are not covered by warranty. Sale is final...(July 23rd, 2016)
• 136200-2050 1999 Acura Integra Gsr Blk2 Oem Purge Control Solenoid Denso (15.1% similar) If you would like to hear the car running go to the video section of my Facebook page on the video 1999 GSR black car 2 test video. This listing is for a purge control solenoid that came from a 1999 integral GSR two door. For example they may need cleaning, seals, bearings, oil, or other ...(June 26th, 2016)
• 136800-1013 01-03 Acura Cl Oem Idle Air Control Valve Iacv Denso Part (15.4% similar) 01 03 acura cl Oem idle Air control valve ICC Denso part inventory bin C13...(May 25th, 2016)
• 192000-5010 Denso 02-03 Tl Acura (25.2% similar) Part: 192000-5010 prices...(June 15th, 2017)
• 234-1017 Denso New Sensor For Acura Integra Legend Honda Accord Prelude (30.4% similar) Upstream RIGHT1989HONDAPRELUDE2. This part may also be known as: o2 Sensor, Air Fuel Ratio 02 fits the following: year make model DETAILS1986ACURAINTEGRA1. 7l - upstream RIGHT1989ACURALEGEND2. Upstream RIGHT1991HONDAPRELUDE2. 7l - upstream RIGHT1986HONDAACCORD2. 6l - UPSTREAM1991ACURAINTEGRA1. Built...(June 22nd, 2018)
• 234-4543 Denso O2 Oxygen Sensor Downstream (34.1% similar) All expedited orders must be received before 12 pm pst noon pacific standard time to leave same day. Shipping price for this item is to the continental 48 states only. You can call FedEx too at FedEx why so long. Return shipping is absolutely free. FedEx tells you where it is. Box, APOS, fops, or ...(February 10th, 2017)
• 234-4979 Denso New Sensor For Acura Ilx Honda Civic (37.7% similar) Built for trouble-free ownership and 100 visually inspected quality tested, this o2 Sensor is backed by our satisfaction guarantee. This Sensor is manufactured and tested to the strictest Oe standards for unparalleled performance. 8l - gas DOWNSTREAM2016HONDAHR-V1. This part may also be known as: o2...(June 21st, 2018)
• 234-5018 Denso O2 Oxygen Sensor Upstream (37.8% similar) Why so long. Shipping price for this item is to the continental 48 states only. Sometimes packages have to go by another delivery service. Usually this is due to the delivery location or size, weight, and dimensions of package. Return shipping is absolutely free. Box, APOS, fops, or military mail ...(February 10th, 2017)