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  3. AUTOPART PREMIUM 78KSRN

AUTOPART PREMIUM 78KSRN Downstream Rear Oxygen Sensor 3.5L V6

fits model: Mdx. make: Acura. year: 2014–2017.

78ksrn Autopart Premium Downstream Rear Oxygen Sensor Fits Acura Mdx 2014-2017 3.5l V6

( Brand: Autopart Premium ), ( Manufacturer Part Number: 78KSRN ), ( Part Type: Sensor ), ( Engine: 3.5l V6 ), ( Trim: Sh-awd, Base ), ( Compatible Make/model: Acura Mdx ), ( Compatible Years: 2016 2014 2015 2017 16 14 15 17 ), ( Position: Downstream Rear ), ( Fitment Info: Oxygen Sensor ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review AUTOPART PREMIUM Downstream Rear Oxygen Sensor Acura 3.5l V6 fits MDX 2014–2017

Downstream Rear Oxygen Sensor for Acura MDX 2014-2017 3.5L V6 Engines (Part No. 78KSrn)

Description:

The downstream rear oxygen sensor, also known as the rear oxygen sensor or O2 sensor, is a crucial component of your Acura MDX's exhaust system. This sensor, identified as part number 78KSrn, is designed specifically for use in 2014-2017 Acura MDX models equipped with the 3.5L V6 engine.

The oxygen sensor plays a significant role in maintaining optimal engine performance and fuel efficiency. It continuously monitors the exhaust gas to measure the amount of unburnt oxygen that exists in the exhaust stream. This data is then sent to the engine control unit (ECU), which adjusts the air-fuel mixture to ensure the most efficient combustion process.

The downstream rear oxygen sensor is installed near the catalytic converter in the exhaust system. Its primary function is to analyze the exhaust gases leaving the catalytic converter, ensuring that the catalytic converter is functioning correctly and efficiently.

This high-quality oxygen sensor is designed to provide accurate and reliable readings, ensuring that your Acura MDX maintains its optimal performance and fuel efficiency. It is manufactured using advanced materials and state-of-the-art manufacturing processes, ensuring a long service life and excellent durability.

Installation of the new oxygen sensor is a straightforward process, typically taking around 1 hour or less for experienced mechanics. However, it is essential to follow the manufacturer's instructions carefully and use the appropriate tools and safety precautions to avoid any potential damage to the vehicle or personal injury.

By replacing your worn-out or faulty oxygen sensor with this new, genuine Acura part, you can restore your vehicle's performance and ensure that it meets the latest emissions standards. Additionally, regular replacement of oxygen sensors can help prevent more significant and costly repairs down the line.

In summary, the downstream rear oxygen sensor (part number 78KSrn) is an essential component of your Acura MDX's exhaust system, designed for use in 2014-2017 3.5L V6 engines. This high-quality sensor monitors exhaust gases to maintain optimal engine performance and fuel efficiency, ensuring that your vehicle continues to run smoothly and efficiently.

Buying a new downstream rear oxygen sensor for a 2014-2017 Acura MDX with a 3.5L V6 engine and the part number 78KSRN can help improve the vehicle's emissions system and fuel efficiency. Here are some pros and cons to consider before making a purchase.

Pros:

1. Improved emissions: A faulty oxygen sensor can cause the vehicle to emit more pollutants than necessary. A new sensor will help ensure that the vehicle's emissions are within acceptable levels.

2. Better fuel efficiency: A faulty oxygen sensor can cause the vehicle to consume more fuel than necessary. A new sensor will help ensure that the engine is running efficiently, which can lead to better fuel economy.

3. Longer engine life: A faulty oxygen sensor can cause the engine to run rich, which can lead to premature wear and tear. A new sensor will help ensure that the engine is running correctly, which can extend its life.

4. Check Engine Light: A faulty oxygen sensor can cause the Check Engine Light to come on. A new sensor will help ensure that the light stays off, providing peace of mind.

Cons:

1. Cost: A new oxygen sensor can be an expensive repair, especially if the vehicle is not under warranty.

2. Installation: Installing a new oxygen sensor can be a complex process, especially for those without automotive experience. It may be necessary to take the vehicle to a professional mechanic for installation.

3. Availability: It may be difficult to find a new oxygen sensor for a specific make and model, especially for older vehicles or less common models.

Ending Conclusion:

Considering the pros and cons, buying a new downstream rear oxygen sensor for a 2014-2017 Acura MDX with a 3.5L V6 engine and the part number 78KSRN can be a worthwhile investment for those who want to ensure that their vehicle is running efficiently and emitting the correct amount of pollutants. However, the cost and installation process may be a deterrent for some. Ultimately, the decision to purchase a new oxygen sensor should be based on the individual's budget, automotive experience, and priority for vehicle maintenance.

Recommendation:

If the Check Engine Light is on and the vehicle is not running efficiently, it may be necessary to replace the downstream rear oxygen sensor. It is recommended to take the vehicle to a professional mechanic for diagnosis and installation to ensure that the sensor is installed correctly and functions properly. For those who want to save money, it may be possible to purchase a remanufactured oxygen sensor or even a used one from a reputable supplier. However, it is important to ensure that the sensor is compatible with the vehicle and in good working condition before installation.

Details:

Detailed Applications Years: Vehicle: Sub model: Engine: 2014 - 2017 Acura MDXSH-AWD3.5L V6, MDXBase3.5L V6. Downstream Rear Oxygen Sensor fits Acura MDX 2014 - 2017 3.5L V6 78KSRN: Position: Brand: Autopart Premium condition: New Notes: Detailed O2 for TLX RLX RDX Honda Pilot Accord 3.5L, Specifications Installation. Connector: 4.

part #: 78ksrn price

  • $34.69

specifications acrasensor:

  • for models: Mdx
  • for makes: Acura
  • for years: 2014-2017
  • brand: Autopart Premium
  • mpn: 78ksrn
  • part type: Sensor
  • engine: 3.5l V6
  • trim: Sh-awd, Base
  • compatible make/model: Acura Mdx
  • compatible years: 2016 2014 2015 2017 16 14 15 17
  • position: Downstream Rear
  • fitment info: Oxygen Sensor
  • 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

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  • # reviews: 23491
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offer acrasensor:

  • started: March 27, 2026
  • quantity: 4
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  • availability: In Stock
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for models: mdx, for makes: acura, for years: 2014-2017, part type: sensor, engine: 3.5l v6, trim: sh-awd, base, compatible make/model: acura mdx, compatible years: 2016 2014 2015 2017 16 14 15 17, position: downstream rear, fitment info: oxygen sensor, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > air fuel delivery > acura air intake fuel sensors, sku: 5886410305560773,
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