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Automotive Sensors

A failing oxygen sensor can ruin your fuel economy and cause engine damage. Our high-quality aftermarket O2 sensors are designed for perfect compatibility and long-lasting data precision. Whether you are looking for upstream or downstream sensors, we provide the reliable emission control components needed to pass smog tests and keep your engine in top shape.

💡 Note: Our vehicle fitment database is massive. If dropdowns don't respond immediately, please wait a few seconds.

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FAQ & Support

🚦 1. Trouble Codes & Symptoms

Q1: My car shows codes like P0420 / P0171 / P0138. What do they mean?

These are common codes related to the fuel system or oxygen sensors:

P0420: Catalyst efficiency below threshold
P0171: System too lean
P0138: O2 sensor voltage high

They often indicate a worn oxygen sensor, exhaust leak, or ignition issue. If you're not sure, simply tell us your year, make, model, and engine—we'll check the exact part you need.

Q2: My engine shakes at idle. Is my ignition coil bad?

It's very possible. Common symptoms of a failing ignition coil include:

Rough idle or shaking
Hard cold starts
Poor acceleration
Higher fuel consumption
Misfire popping noise

Tell us your vehicle info—our team can help you identify the cause.

Q3: What are the symptoms of a bad oxygen sensor?

Typical signs include: Check Engine Light on, Increased fuel consumption, Poor acceleration, Strong fuel smell, and Slow throttle response.

Most sensors should be replaced every 80,000–100,000 km.

🔍 2. Fitment & Compatibility

Q4: How do I know which oxygen sensor fits my car?

Just provide: Year, Make, Model, and Engine size.

We'll confirm: Upstream or downstream, Correct connector, Proper reference number, and Federal vs. California emissions compatibility.

Q5: What's the difference between ignition coils?

High-quality aftermarket: Close to Standard but more affordable.

We only offer high-grade, reliable ignition coils.

Q6: How many oxygen sensors does my car have?

Most vehicles have 2–4 sensors (Upstream front and Downstream rear). We can confirm the exact number for your vehicle.

🛒 3. Buying, Quality & Concerns

Q7: Are cheap oxygen sensors reliable?

They work for a short time but usually cause issues like short lifespan, slow response, and frequent check engine lights.

We only sell new, high-quality, fully tested sensors.

Q8: How can I avoid buying a refurbished or used auto part?

Check for scratches on the connector, dirty wiring, or marks on threads.

Our parts are 100% brand new, never refurbished, and fully tested.

🧰 4. Installation & Usage

Q9: Can I install an oxygen sensor myself?

Yes. Difficulty: medium.

You'll need an O2 sensor socket, Anti-seize compound, and a Torque wrench. We recommend clearing fault codes with an OBD scanner after installation.

Q10: Do ignition coils need programming after replacement?

In most vehicles, no programming is required. Just swap the old coil with the new one.

💰 5. Value & Performance

Q11: Your parts cost less than Other accessories. Are they really reliable?

Yes—our parts use the same-grade materials and testing standards as suppliers. Because we don't go through dealer channels, the price is much more affordable.

About us

Since its inception, Automotive Leader has been guided by a simple mission: to provide high-performance aftermarket parts for automotive technicians and DIY enthusiasts.

The website is jointly operated by Trademark Name: Automotive-leader Store registered at Physical Address: Room 602, No. 152 Helong East Road, Helong Subdistrict, Baiyun District, Guangzhou City Postal Code: 510000 and Company name：BLUE STAR TRADING LIMITED registered at Company address：RM C，6/F，WORLD TRUST TOWER 50 STANLEY STREET CENTRAL HK

U.S. Address:
7600 LTC Parkway 34986
PORT SAINT LUCIE, FL - United States

Phone Number: +86 15812449181

Email: support@automotive-leaderstore.com

Logistics Policy

1. U.S. Warehouse (Standard Option)
Handling time: 1-3 business days
Transit time (days): 3-6 business days via USPS/UPS/FedEx.

2. China Warehouse (Standard Option)
Handling time: 1-3 business days
Transit time (days): 14-22 business days via USPS/UPS/FedEx.

Refund and Return Policy

30-Day Returns and Refunds / Return shipping is free（Due to a product issue）

We do not accept direct exchanges.

After receiving and inspecting your returned item, we will notify you whether your refund has been approved.

If approved, the refund will be processed back to your original payment method within 5 business days.

Please note that your bank or credit card company may also require additional time to process and reflect the refund.

If you have not received your refund within 10 business days after your return request has been approved, please contact us.

Contact: support@automotive-leaderstore.com

Account

Automotive Sensors

Filters

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Forester Impreza Outback 2.5L (03-04) | 234-9015 234-4706

2Pcs Air Fuel Ratio & O2 Sensor for Acura TSX 2.4L (2004-2008) | 234-9066 234-4363

2Pcs O2 Sensor for Toyota Tacoma 2.7L L4 (2005-2012)| 234-9050, 234-4624

2Pcs O2 Sensor for Honda CR-V (1997-2001) & Civic Si 1.6L (B16A2 Engine) | 234-4011 234-4098

2Pcs Air Fuel Ratio & O2 Sensor for Mini Cooper 1.6L (2007-2010) | 234-5135, 234-4488

2Pcs Air Fuel Ratio & O2 Sensor for Honda Accord Acura ILX TLX 2.4L | 234-9131 234-4574

2Pcs Air Fuel Ratio & O2 Sensor for Ford Focus Fusion 1.6L 2.0L | 234-5113 234-4575

2Pcs Downstream O2 Sensor for Nissan 350Z Altima Infiniti FX35 (2002-2009) | 234-4301

Suitable for 2Pcs O2 Sensor for Jeep Cherokee Renegade 2.4L (2014-2020) | 234-5150 234-4545

Suitable for 2Pcs O2 Sensor Up & Down for Chevy Colorado GMC Canyon Hummer H3 | 234-4294 234-4331

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Rogue 2.5L (2014-2019) | 234-9149 234-4906

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Juke 1.6L Nismo (2011-2017) | 234-9105 234-4535

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Rogue 2.5L (2021) | 226936CA0A 226A05CA0A

2Pcs Air Fuel Ratio & O2 Sensor for Honda Fit 1.5L (09-10) | 234-9077 234-4218

Suitable for 2Pcs O2 Sensor for Toyota Tacoma (2000 Calif. Emission) | 234-4189 234-4162

2Pcs O2 Sensor Up & Down for Mercedes CLS55 AMG E500 SL500 | 16167 16272

2Pcs Air Fuel Ratio & O2 Sensor for Suzuki Kizashi 2.4L (2010-2013) | 234-9099 234-4303

Suitable for 2Pcs O2 Sensor Up & Down for Mazda MX-5 Miata 2.0L (16-18)| 234-5720 234-8000

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Altima Pathfinder QX60 3.5L (2013-2014) | 234-9135 234-4595

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Sentra 2.0L (2010-2012 Calif. Emission) | 234-9082 234-4380

Suitable for 2Pcs Downstream O2 Sensor for Ford F-150 Explorer Mustang Police | 234-4490

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Forester Impreza 2.5L (2008-2010) | 234-9120 234-4195

Suitable for 2Pcs O2 Sensor for Toyota Corolla Matrix 1.8L FWD | 234-4800 234-4233

2Pcs Air Fuel Ratio & O2 Sensor for Suzuki SX4 2.0L (2008-2009) | 234-9033 234-4165

Subscribe to our email list to receive a VIP discount

FAQ & Support

🚦 1. Trouble Codes & Symptoms

🔍 2. Fitment & Compatibility

🛒 3. Buying, Quality & Concerns

🧰 4. Installation & Usage

💰 5. Value & Performance

About us

Logistics Policy

Refund and Return Policy

Country/Region

Country/Region

Automotive Sensors

Filters

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Forester Impreza Outback 2.5L (03-04) | 234-9015 234-4706

2Pcs Air Fuel Ratio & O2 Sensor for Acura TSX 2.4L (2004-2008) | 234-9066 234-4363

2Pcs O2 Sensor for Toyota Tacoma 2.7L L4 (2005-2012)| 234-9050, 234-4624

2Pcs O2 Sensor for Honda CR-V (1997-2001) & Civic Si 1.6L (B16A2 Engine) | 234-4011 234-4098

2Pcs Air Fuel Ratio & O2 Sensor for Mini Cooper 1.6L (2007-2010) | 234-5135, 234-4488

2Pcs Air Fuel Ratio & O2 Sensor for Honda Accord Acura ILX TLX 2.4L | 234-9131 234-4574

2Pcs Air Fuel Ratio & O2 Sensor for Ford Focus Fusion 1.6L 2.0L | 234-5113 234-4575

2Pcs Downstream O2 Sensor for Nissan 350Z Altima Infiniti FX35 (2002-2009) | 234-4301

Suitable for 2Pcs O2 Sensor for Jeep Cherokee Renegade 2.4L (2014-2020) | 234-5150 234-4545

Suitable for 2Pcs O2 Sensor Up & Down for Chevy Colorado GMC Canyon Hummer H3 | 234-4294 234-4331

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Rogue 2.5L (2014-2019) | 234-9149 234-4906

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Juke 1.6L Nismo (2011-2017) | 234-9105 234-4535

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Rogue 2.5L (2021) | 226936CA0A 226A05CA0A

2Pcs Air Fuel Ratio & O2 Sensor for Honda Fit 1.5L (09-10) | 234-9077 234-4218

Suitable for 2Pcs O2 Sensor for Toyota Tacoma (2000 Calif. Emission) | 234-4189 234-4162

2Pcs O2 Sensor Up & Down for Mercedes CLS55 AMG E500 SL500 | 16167 16272

2Pcs Air Fuel Ratio & O2 Sensor for Suzuki Kizashi 2.4L (2010-2013) | 234-9099 234-4303

Suitable for 2Pcs O2 Sensor Up & Down for Mazda MX-5 Miata 2.0L (16-18)| 234-5720 234-8000

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Altima Pathfinder QX60 3.5L (2013-2014) | 234-9135 234-4595

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Sentra 2.0L (2010-2012 Calif. Emission) | 234-9082 234-4380

Suitable for 2Pcs Downstream O2 Sensor for Ford F-150 Explorer Mustang Police | 234-4490

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Forester Impreza 2.5L (2008-2010) | 234-9120 234-4195

Suitable for 2Pcs O2 Sensor for Toyota Corolla Matrix 1.8L FWD | 234-4800 234-4233

2Pcs Air Fuel Ratio & O2 Sensor for Suzuki SX4 2.0L (2008-2009) | 234-9033 234-4165

Subscribe to our email list to receive a VIP discount

FAQ & Support

🚦 1. Trouble Codes & Symptoms

🔍 2. Fitment & Compatibility

🛒 3. Buying, Quality & Concerns

🧰 4. Installation & Usage

💰 5. Value & Performance

About us

Logistics Policy

Refund and Return Policy