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Explore our catalog of proven engine management solutions. These items are the top choices of our customers, selected for their consistent performance, perfect fitment, and exceptional value. Whether you're troubleshooting a common fault or performing regular maintenance, find the best parts here.

Find Parts by Vehicle

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Make

Model

Part Number (Optional)

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 OEM reference number, and Federal vs. California emissions compatibility.

Q5: What's the difference between OEM and aftermarket ignition coils?

OEM: Same quality as the factory part; long-lasting.
High-quality aftermarket: Close to OEM 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 OEM. Are they really reliable?

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

About us

Automotive Leader started with a simple mission: to provide mechanics and DIYers with OEM-grade parts at affordable prices.

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 Return Policy / Return shipping is free.

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

Hot Products

Find Parts by Vehicle

4Pcs Oxygen Sensor Set for Honda Accord V6, Odyssey, Pilot & Acura MDX (03-08) | 234-5010 234-4355 234-4368

2Pcs Downstream O2 Sensor for Cadillac Escalade Chevy Silverado GMC Yukon - 234-4256

2Pcs O2 Sensor Upstream & Downstream for Jeep Cherokee Renegade 2.4L - 68195741AA 5149180AA

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Forester Impreza 2.5L (10-14) 22690AA900, 22690AB06A

4Pcs Oxygen Sensor Set for GMC Yukon & Sierra 1500/2500 (08-14) | 234-4256 234-4668

2Pcs O2 Sensors for Honda CR-V 2.4L (2002-2004) 234-9005 234-4125

2Pcs Oxygen Sensor Set for Honda Accord 2.4L (08-12) | 36531-R40-A01 36532-R40-A01

2Pcs Up & Down O2 Sensors for 1998–2002 Honda Accord 2.3L | 36531P0BA01 36352P8CL21

4Pcs Oxygen Sensors for Toyota Tundra & Lexus LX470 (4.7L V8) | 234-4154 234-4169

4Pcs O2 Sensor for Honda Accord Odyssey Pilot & Acura MDX V6 | 234-5098 234-4461

Upstream Air Fuel Ratio Sensor for Nissan Titan, Armada & Altima | 234-9038 226931AA0A

2Pcs O2 Sensor Upstream & Downstream for Honda Civic 1.7L (D17A7 Engine Only) 234-4092 234-4123

2Pcs O2 Sensor Up & Down for Ford Fusion 1.5L Turbo (2014-2020) 234-5172 234-8039

2Pcs O2 Sensor Upstream & Downstream for BMW 328i 128i (N52) - 234-5138 234-4892

4Pcs Air Fuel Ratio & O2 Sensor Set for Toyota Tacoma 4.0L V6 (05-06) | 89467-04060 89465-04300 89465-04270

2Pcs O2 Sensor Up/Down for Scion xB 2.4L (2008-2010) 89467-06030 89465-48170

2Pcs Up & Down Oxygen Sensor for Nissan Altima Rogue 2.5L (2010-2013) | 22693ZX70A 226A4JA00A

4Pcs O2 Sensor for Chevy Silverado Tahoe GMC Sierra Escalade (2014-2018)| 12657188 12659516

2Pcs O2 Sensor Upstream & Downstream for Chevy Silverado Tahoe GMC Sierra 12659516 12657188

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Altima Maxima 2.5L 3.5L (2008-2010) | 234-9038 234-4381

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Versa & Versa Note 1.6L (12-17) | 226931KT0A 226A01KT0A

4Pcs O2 Sensor Set for Mazda CX-9 Ford Edge Lincoln MKX 3.5L (2007-2009) 234-4372 234-4610

4Pcs O2 Sensor for Infiniti G35 FX35 & Nissan 350Z 3.5L (03-04) | 226A08J010 22690AR210 226A1AR210 22690AL600

4Pcs O2 Sensor for Ford F-150 4.6L VIN W & E-Series (2009-2014) | 234-5113 234-4127

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

Hot Products

Find Parts by Vehicle

4Pcs Oxygen Sensor Set for Honda Accord V6, Odyssey, Pilot & Acura MDX (03-08) | 234-5010 234-4355 234-4368

2Pcs Downstream O2 Sensor for Cadillac Escalade Chevy Silverado GMC Yukon - 234-4256

2Pcs O2 Sensor Upstream & Downstream for Jeep Cherokee Renegade 2.4L - 68195741AA 5149180AA

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Forester Impreza 2.5L (10-14) 22690AA900, 22690AB06A

4Pcs Oxygen Sensor Set for GMC Yukon & Sierra 1500/2500 (08-14) | 234-4256 234-4668

2Pcs O2 Sensors for Honda CR-V 2.4L (2002-2004) 234-9005 234-4125

2Pcs Oxygen Sensor Set for Honda Accord 2.4L (08-12) | 36531-R40-A01 36532-R40-A01

2Pcs Up & Down O2 Sensors for 1998–2002 Honda Accord 2.3L | 36531P0BA01 36352P8CL21

4Pcs Oxygen Sensors for Toyota Tundra & Lexus LX470 (4.7L V8) | 234-4154 234-4169

4Pcs O2 Sensor for Honda Accord Odyssey Pilot & Acura MDX V6 | 234-5098 234-4461

Upstream Air Fuel Ratio Sensor for Nissan Titan, Armada & Altima | 234-9038 226931AA0A

2Pcs O2 Sensor Upstream & Downstream for Honda Civic 1.7L (D17A7 Engine Only) 234-4092 234-4123

2Pcs O2 Sensor Up & Down for Ford Fusion 1.5L Turbo (2014-2020) 234-5172 234-8039

2Pcs O2 Sensor Upstream & Downstream for BMW 328i 128i (N52) - 234-5138 234-4892

4Pcs Air Fuel Ratio & O2 Sensor Set for Toyota Tacoma 4.0L V6 (05-06) | 89467-04060 89465-04300 89465-04270

2Pcs O2 Sensor Up/Down for Scion xB 2.4L (2008-2010) 89467-06030 89465-48170

2Pcs Up & Down Oxygen Sensor for Nissan Altima Rogue 2.5L (2010-2013) | 22693ZX70A 226A4JA00A

4Pcs O2 Sensor for Chevy Silverado Tahoe GMC Sierra Escalade (2014-2018)| 12657188 12659516

2Pcs O2 Sensor Upstream & Downstream for Chevy Silverado Tahoe GMC Sierra 12659516 12657188

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Altima Maxima 2.5L 3.5L (2008-2010) | 234-9038 234-4381

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Versa & Versa Note 1.6L (12-17) | 226931KT0A 226A01KT0A

4Pcs O2 Sensor Set for Mazda CX-9 Ford Edge Lincoln MKX 3.5L (2007-2009) 234-4372 234-4610

4Pcs O2 Sensor for Infiniti G35 FX35 & Nissan 350Z 3.5L (03-04) | 226A08J010 22690AR210 226A1AR210 22690AL600

4Pcs O2 Sensor for Ford F-150 4.6L VIN W & E-Series (2009-2014) | 234-5113 234-4127

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