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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

5-Wire Wideband O2 Sensor for Audi A4 TT VW Golf Jetta 1.8T | 234-5112 0258007351

3Pcs O2 Sensor Kit for Chevy Impala Cadillac Deville Pontiac (2000-2011) | 234-4650 234-4647

Suitable for Downstream O2 Sensor for Cadillac Escalade Chevy Silverado GMC Sierra | 12657188 234-4974

4Pcs Air Fuel Ratio Sensor Set for Nissan Titan Armada Pathfinder 5.6L V8 (2004-2006) | 234-5060 234-4835

4Pcs Air Fuel Ratio & O2 Sensor Set for Toyota Sienna 3.5L V6 (2011-2016) | 234-9114 234-9128 234-4416 234-4540

4Pcs O2 Sensor Set for VW Touareg Audi A8 Quattro 4.2L V8 (2004-2007) | 234-5115 234-4874

Suitable for Downstream O2 Sensor for Land Rover LR4 Range Rover Sport 3.0L 5.0L | 234-4795

Suitable for Downstream O2 Sensor for Mazda RX-8 1.3L Rotary (2004-2011) | 234-4349

Suitable for Downstream O2 Sensor for Mitsubishi Outlander Lancer 2.0L 2.4L | 234-4114 1588A144

4Pcs O2 Sensor Set for Mercedes Benz C300 E350 CLK350 (W204/W211) | 234-5091 234-4881

2Pcs Upstream Wideband O2 Sensor for Nissan Titan Armada Infiniti QX56 | 234-5060

4Pcs O2 Sensor for Honda Odyssey Pilot Ridgeline 3.5L V6 (2007-2010) | 234-5053, 234-4355, 234-4368

4Pcs O2 Sensor for Infiniti G35 FX35 & Nissan 350Z 3.5L (2003-2004) | 22691AR210, 22690AL600, 226A08J010, 226A1AR210

4Pcs O2 Sensor Set for Suzuki Grand Vitara & Chevy Tracker 2.5L 2.7L | 234-4105

Downstream O2 Sensor for Nissan Altima Rogue Sentra & Infiniti | 234-4380 22690EN200

Suitable for Downstream O2 Sensor for Subaru Forester Impreza Crosstrek 2.0L 2.5L | 234-4513 22690AA96A

Suitable for Downstream O2 Sensor Bank 1 for Mazda MPV 3.0L V6 (1996-1998) | 234-4142 15257

Suitable for Downstream O2 Sensor for Mini Cooper R55 R56 R57 & Peugeot | 11787548961 234-4488

Suitable for Downstream O2 Sensor for Chevy Silverado Malibu Cadillac DeVille | 234-4651

4Pcs O2 Sensor for BMW 545i 645Ci 4.4L V8 (2004-2005 Manual Trans)| 234-5133 234-5134 234-4470

Suitable for Downstream O2 Sensor for Chevy Colorado GMC Canyon Trailblazer Hummer H3 | 234-4243 12612571

4Pcs Air Fuel Ratio Sensor for Land Rover LR3 Range Rover Sport 4.4L | 234-9075 234-4264

Suitable for Downstream O2 Sensor for Chevy Silverado Express C1500 K1500 GMC Sierra | 234-4018

Suitable for Downstream O2 Sensor for Subaru Forester Impreza Legacy 2.0L (05-08) | 22690AA891 22690AA831

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

5-Wire Wideband O2 Sensor for Audi A4 TT VW Golf Jetta 1.8T | 234-5112 0258007351

3Pcs O2 Sensor Kit for Chevy Impala Cadillac Deville Pontiac (2000-2011) | 234-4650 234-4647

Suitable for Downstream O2 Sensor for Cadillac Escalade Chevy Silverado GMC Sierra | 12657188 234-4974

4Pcs Air Fuel Ratio Sensor Set for Nissan Titan Armada Pathfinder 5.6L V8 (2004-2006) | 234-5060 234-4835

4Pcs Air Fuel Ratio & O2 Sensor Set for Toyota Sienna 3.5L V6 (2011-2016) | 234-9114 234-9128 234-4416 234-4540

4Pcs O2 Sensor Set for VW Touareg Audi A8 Quattro 4.2L V8 (2004-2007) | 234-5115 234-4874

Suitable for Downstream O2 Sensor for Land Rover LR4 Range Rover Sport 3.0L 5.0L | 234-4795

Suitable for Downstream O2 Sensor for Mazda RX-8 1.3L Rotary (2004-2011) | 234-4349

Suitable for Downstream O2 Sensor for Mitsubishi Outlander Lancer 2.0L 2.4L | 234-4114 1588A144

4Pcs O2 Sensor Set for Mercedes Benz C300 E350 CLK350 (W204/W211) | 234-5091 234-4881

2Pcs Upstream Wideband O2 Sensor for Nissan Titan Armada Infiniti QX56 | 234-5060

4Pcs O2 Sensor for Honda Odyssey Pilot Ridgeline 3.5L V6 (2007-2010) | 234-5053, 234-4355, 234-4368

4Pcs O2 Sensor for Infiniti G35 FX35 & Nissan 350Z 3.5L (2003-2004) | 22691AR210, 22690AL600, 226A08J010, 226A1AR210

4Pcs O2 Sensor Set for Suzuki Grand Vitara & Chevy Tracker 2.5L 2.7L | 234-4105

Downstream O2 Sensor for Nissan Altima Rogue Sentra & Infiniti | 234-4380 22690EN200

Suitable for Downstream O2 Sensor for Subaru Forester Impreza Crosstrek 2.0L 2.5L | 234-4513 22690AA96A

Suitable for Downstream O2 Sensor Bank 1 for Mazda MPV 3.0L V6 (1996-1998) | 234-4142 15257

Suitable for Downstream O2 Sensor for Mini Cooper R55 R56 R57 & Peugeot | 11787548961 234-4488

Suitable for Downstream O2 Sensor for Chevy Silverado Malibu Cadillac DeVille | 234-4651

4Pcs O2 Sensor for BMW 545i 645Ci 4.4L V8 (2004-2005 Manual Trans)| 234-5133 234-5134 234-4470

Suitable for Downstream O2 Sensor for Chevy Colorado GMC Canyon Trailblazer Hummer H3 | 234-4243 12612571

4Pcs Air Fuel Ratio Sensor for Land Rover LR3 Range Rover Sport 4.4L | 234-9075 234-4264

Suitable for Downstream O2 Sensor for Chevy Silverado Express C1500 K1500 GMC Sierra | 234-4018

Suitable for Downstream O2 Sensor for Subaru Forester Impreza Legacy 2.0L (05-08) | 22690AA891 22690AA831

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