AUXITO 234-5138 Upstream Downstream Oxygen Sensors Ec 4-40X 3.0L 234-4892

( Brand: Auxito ), ( Manufacturer Part Number: 234-5138 ), ( Select: 1set/4pcs Oxygen Sensor ), ( Number Of Sensors: As Your Select ), ( Position: Upstream ), ( Right Downstream: Left, Right ), ( Terminal Type: Blade Bullet ), ( Placement On Vehicle: Front, Left, Rear, Right, Upper, Upstream, Downstream ), ( Sensor Type: Air/fuel Ratio Sensor ), ( Manufacturer Warranty: 2 Years ), ( Oe/oem Part Number: 234-5138, 234-5139, 234-4876, 234-4892 ), ( Interchange Part Number 4: 11787545244, 11787569968, 11787614322 ), ( Interchange Part Number 2: 11787558081, 11787558087, 11787589138, 0035427218 ), ( Features: Calibrated, Direct Fit, Easy Installation, Wired ), ( Interchange Part Number 3: 11787557756, 11787558055, 11787526262, 11787545074 ), ( Country/region Of Manufacture: China ), ( Wire Quantity: As Picture Show ), ( Type: Oxygen Sensors ), ( Material: Stainless Steel ), ( Universal Fitment: Yes ), ( Mounting Style: Bolt-on ), ( Installation Position: Upstream, Downstream ), ( Color: Black, Silver ), ( Fit For 1: Bmw 1 Series M L6-3.0 2011 Cylinder 1-6 ), ( Fit For 2: Bmw 128i L6-3.0 2013-2008 Cylinder 1-6 ), ( Fit For 3: Bmw 135i L6-3.0 2010-2008 Cylinder 1-6 ), ( Fit For 4: Bmw 323i L6-2.5 2011-2010 Cylinder 1-6 ), ( Fit For 5: Bmw 325i L6-3.0 2006 Cylinder 1-6 ), ( Fit For 6: Bmw 325xi L6-3.0 2006 Cylinder 1-6 ), ( Fit For 7: Bmw 328i L6-3.0 2013-2007 Cylinder 1-6 ), ( Fit For 8: Bmw 328i Xdrive L6-3.0 2013-2009 Cylinder 1-6 ), ( Fit For 9: Bmw 328xi L6-3.0 2008-2007 Cylinder 1-6 ), ( Fit For 10: Bmw 330i L6-3.0 2006 Cylinder 1-6 ), ( Fit For 11: Bmw 330xi L6-3.0 2006 Cylinder 1-6 ), ( Fit For 12: Bmw 335i L6-3.0 2010-2007 Cylinder 1-6 ), ( Fit For 13: Bmw 335is L6-3.0 2013-2011 Cylinder 1-6 ), ( Fit For 14: Bmw 335i Xdrive L6-3.0 2010-2009 Cylinder 1-6 ), ( Fit For 15: Bmw 335xi L6-3.0 2008-2007 Cylinder 1-6 )

Review AUXITO Upstream Downstream Oxygen O2 Sensors Bmw 3.0l Ec fits 128I 328I 335I X3 Z4

Auxito 234-5138 Oxygen Sensors for BMW 128i, 328i, 335i, X3, Z4, and 3.0L EC Models

The Auxito 234-5138 4-40x Upstream Downstream Oxygen Sensors are designed specifically for BMW vehicles equipped with the 3.0L engine, including the 128i, 328i, 335i, X3, Z4 models, and other compatible EC (Electronic Control) systems. These high-quality sensors are engineered to maintain your BMW's performance and fuel efficiency by accurately measuring the amount of oxygen in your vehicle's exhaust system.

The Auxito 234-5138 sensors feature a 4-40x design, with two sensors one upstream and one downstream. The upstream sensor monitors the air-fuel mixture entering the engine, while the downstream sensor detects the exhaust after combustion. By providing real-time data to the ECU, these sensors help regulate the air-fuel ratio, promoting optimal engine performance and reducing harmful emissions.

These oxygen sensors are built with durable, heat-resistant materials that can withstand the high temperatures within your exhaust system, ensuring long-lasting reliability. The sensors also feature a hexagonal screw design for easy installation and removal, making them a convenient choice for both professional mechanics and DIY enthusiasts.

By choosing the Auxito 234-5138 Oxygen Sensors, you're investing in a reliable, high-performance solution for your BMW. These sensors not only improve the overall health of your vehicle but also contribute to a smoother, more efficient driving experience. Replacing your oxygen sensors with these Auxito sensors is an excellent way to keep your BMW running at its best while ensuring a longer lifespan for your vehicle's engine. Upgrade your BMW today with the Auxito 234-5138 Oxygen Sensors.

Pros and Cons of Buying Auxito 234-5138 Oxygen Sensors for BMW Models

1. Compatibility: This Auxito oxygen sensor is designed to fit various BMW models, including 128i, 328i, 335i, X3, Z4, and 3.0L EC engines. This broad compatibility makes it a versatile choice for many BMW owners.

2. Quality: Auxito is a well-known brand in the automotive industry, known for manufacturing high-quality auto parts. This oxygen sensor is expected to provide accurate and reliable readings, which can help maintain optimal engine performance.

3. Cost-effective: Compared to original equipment manufacturer (OEM) parts, Auxito sensors are often more affordable, making them an attractive option for budget-conscious car owners.

4. Availability: Due to their wide distribution, these sensors are readily available from various online retailers, ensuring quick shipping and easy access for customers.

1. Quality Concerns: While Auxito is a reputable brand, there may be concerns about the quality control of their parts. Some customers have reported issues with sensor longevity and performance.

2. Fitment Issues: Although the sensor is designed to fit multiple BMW models, there may be instances where the fitment is not perfect. This could lead to installation difficulties or potential performance issues.

3. Lack of Warranty: Some aftermarket parts, including Auxito sensors, may not come with the same level of warranty coverage as OEM parts. This could leave consumers without recourse if the sensor fails due to a manufacturing defect.

4. Potential Impact on Check Engine Light: Since these are aftermarket sensors, they may not be recognized by the vehicle's computer system, potentially causing the check engine light to illuminate continuously.

Purchasing the Auxito 234-5138 oxygen sensor for your BMW can offer cost savings and compatibility advantages. However, potential quality concerns, fitment issues, and the lack of warranty coverage are factors to consider. If you prioritize cost savings and are willing to accept these risks, this sensor could be a suitable choice. If you prefer the peace of mind that comes with a warranty and guaranteed fitment, you may want to consider original equipment manufacturer parts.

Details:

BMW 1 SERIES M L6-3.0 2011 Cylinder 1-6 ; 2 Upstream Downstream. Efficient Contaminant Blocking. Precision zircon element detects air-fuel changes instantly for smoother idle, sharper acceleration, and precise fuel control. Packaging Include.

BMW 128I L6-3.0 2013 - 2008 Cylinder 1-6 ; 2 Upstream Downstream. Stainless steel construction withstands exhaust heat and chemicals for long-term reliability. Oxygen Sensors Upstream Downstream AS YOUR SELECT. It is used to Detect Whether the Exhaust Gas Exceeds Standard.

Specifications. Excellent Delivery. Optimized Engine Performance. The Downstream oxygen sensor is mainly used to Detect Whether the Three-way Catalytic Converter Works Normally.

Installation Position: Upstream, Downstream. New List Item. Up Downstream Oxygen O2 Sensors For BMW 128I 325XI 528I X3 X5 Z4 234-5138. Corrosion-Resistant Build.

Faster Response Time. The Upstream oxygen sensor is used to Monitor Raw Exhaust Gas Adjust Air-fuel Ratio in Real-time,.e. Color: Black, Silver. Product Material: Stainless Steel.

BMW 135I L6-3.0 2010 - 2008 Cylinder 1-6 ; 2 Upstream Downstream. PTFE filter stops efficiency-robbing contaminants like soot, silicone, and grime from damaging the sensing element, which keeps accuracy of sensor extends its lifespan. Direct replacement, just install and drive.

part #: 2345138 prices

• $8.54-$70.29

specifications emblico:

• for models: 128i, 328i, 335i, X3, Z4
• for makes: Bmw
• brand: Auxito
• mpn: 234-5138
• select: 1set/4pcs Oxygen Sensor
• number of sensors: As Your Select
• position: Upstream
• right downstream: Left, Right
• terminal type: Blade Bullet
• placement on vehicle: Front, Left, Rear, Right, Upper, Upstream, Downstream
• sensor type: Air/fuel Ratio Sensor
• manufacturer warranty: 2 Years
• oe/oem part number: 234-5138, 234-5139, 234-4876, 234-4892
• interchange part number 4: 11787545244, 11787569968, 11787614322
• interchange part number 2: 11787558081, 11787558087, 11787589138, 0035427218
• features: Calibrated, Direct Fit, Easy Installation, Wired
• interchange part number 3: 11787557756, 11787558055, 11787526262, 11787545074
• country/region of manufacture: China
• wire quantity: As Picture Show
• type: Oxygen Sensors
• material: Stainless Steel
• universal fitment: Yes
• mounting style: Bolt-on
• installation position: Upstream, Downstream
• color: Black, Silver
• fit for 1: Bmw 1 Series M L6-3.0 2011 Cylinder 1-6
• fit for 2: Bmw 128i L6-3.0 2013-2008 Cylinder 1-6
• fit for 3: Bmw 135i L6-3.0 2010-2008 Cylinder 1-6
• fit for 4: Bmw 323i L6-2.5 2011-2010 Cylinder 1-6
• fit for 5: Bmw 325i L6-3.0 2006 Cylinder 1-6
• fit for 6: Bmw 325xi L6-3.0 2006 Cylinder 1-6
• fit for 7: Bmw 328i L6-3.0 2013-2007 Cylinder 1-6
• fit for 8: Bmw 328i Xdrive L6-3.0 2013-2009 Cylinder 1-6
• fit for 9: Bmw 328xi L6-3.0 2008-2007 Cylinder 1-6
• fit for 10: Bmw 330i L6-3.0 2006 Cylinder 1-6
• fit for 11: Bmw 330xi L6-3.0 2006 Cylinder 1-6
• fit for 12: Bmw 335i L6-3.0 2010-2007 Cylinder 1-6
• fit for 13: Bmw 335is L6-3.0 2013-2011 Cylinder 1-6
• fit for 14: Bmw 335i Xdrive L6-3.0 2010-2009 Cylinder 1-6
• fit for 15: Bmw 335xi L6-3.0 2008-2007 Cylinder 1-6

shipping emblico:

• class: Economy
• type: Fixed
• transit: 3-10 Days
• service: UPS Ground Saver
• carrier: UPS
• cost: $0.00

payments emblico:

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

general emblico:

• Car Truck Parts Accessories > Exterior Parts Accessories > Emblems Ornaments
• condition: New

seller emblico:

• # reviews: 4982
• rating: 99.1%
• city: Rowland height, California

returns emblico:

• paid by: Seller
• policy: Returns Accepted
• time: 60 Days

offer emblico:

• sold: 0
• started: June 30, 2025
• availability: In Stock
• options: Ship-to-home

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