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Hot Products

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.

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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

whatsAPP Number: +86 18316212443

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

Hot Products

Filters

4Pcs AFR&O2 Sensor for Honda Accord V6, Odyssey, Pilot & Acura MDX (2003-2008) | 234-5010 234-4355 234-4368

Suitable for 2Pcs Oxygen Sensor Set for Honda Accord 2.4L (2008-2012) | 234-9091 234-4462

4Pcs Oxygen Sensor for Chevy Silverado & GMC Sierra 1500/2500 (2003-2006) | 234-4669 234-4407

Suitable for 2Pcs Oxygen Sensor for Honda Accord 2.4L EX/LX/DX (2003-2007) |234-9040 234-4797

Suitable for 2Pcs O2 Sensor Upstream/Downstream for Toyota Camry RAV4 2.4L (2004-2011) | 234-9049 234-4622

4Pcs O2 Sensor for Chevy Silverado Tahoe GMC Sierra Escalade (14-18)| 234-4940, 234-4974

4Pcs Air Fuel Ratio & O2 Sensor Set for Nissan Maxima Altima Murano V6 (04-08) | 234-5060 234-4301

2Pcs Fuel Injector for Harley Davidson Touring Electra Glide & Ducati | IWP162, 2760901B

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

Suitable for 2Pcs O2 Sensor for Toyota Camry Avalon Lexus ES300h (2018-2021) |234-9307 234-9304

Suitable for 2Pcs Oxygen Sensor for Nissan Altima Rogue 2.5L (2010-2013) | 234-9036 234-4382

4Pcs Air Fuel Ratio & O2 Sensor Set for Acura MDX 3.7L (2007-2009) | 234-5053, 234-4351

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Legacy Outback 2.5L (2013-2014) | 234-9136 234-4907

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Impreza Outback 2.5L (2004-2008) | 234-9120 234-4446

Suitable for 4Pcs Fuel Injector Set for Ford Escape Fusion 1.5L EcoBoost | DS7Z9F593DA, FJ1235

Suitable for 4Pcs Lambda O2 Sensor Set for Maserati Ghibli 3.0L V6 (M157) 2017 | 670009076, 670002200, 670031347, 670031348

4Pcs Air Fuel Ratio & O2 Sensor Set for Infiniti QX56 QX80 5.6L V8 | 234-5095 234-4381

4Pcs Wideband O2 Sensor for BMW 128i 328i X3 X5 (E90/E82) | 234-5138, 234-5139, 234-4876, 234-4892

4Pcs Air Fuel Ratio & O2 Sensor Set for Ford F-150 3.7L & Explorer 3.5L (2011-2015) | 234-5038 234-4490

2Pcs O2 Sensor for Lexus RX330 Toyota Highlander (2004-2006) | 234-9042 234-4168

4Pcs Air Fuel Ratio & O2 Sensor Set for Honda Accord & Acura MDX 3.5L 3.7L (2008-2014) | 234-5098 234-4461

Suitable for 2Pcs O2 Sensor for Chevy Silverado Tahoe GMC Sierra | 234-4940 234-4974

4Pcs O2 Sensor for Nissan Altima Maxima Pathfinder V6 (2015-2019) | 234-9148 234-4985 234-4986

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

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

Hot Products

Filters

4Pcs AFR&O2 Sensor for Honda Accord V6, Odyssey, Pilot & Acura MDX (2003-2008) | 234-5010 234-4355 234-4368

Suitable for 2Pcs Oxygen Sensor Set for Honda Accord 2.4L (2008-2012) | 234-9091 234-4462

4Pcs Oxygen Sensor for Chevy Silverado & GMC Sierra 1500/2500 (2003-2006) | 234-4669 234-4407

Suitable for 2Pcs Oxygen Sensor for Honda Accord 2.4L EX/LX/DX (2003-2007) |234-9040 234-4797

Suitable for 2Pcs O2 Sensor Upstream/Downstream for Toyota Camry RAV4 2.4L (2004-2011) | 234-9049 234-4622

4Pcs O2 Sensor for Chevy Silverado Tahoe GMC Sierra Escalade (14-18)| 234-4940, 234-4974

4Pcs Air Fuel Ratio & O2 Sensor Set for Nissan Maxima Altima Murano V6 (04-08) | 234-5060 234-4301

2Pcs Fuel Injector for Harley Davidson Touring Electra Glide & Ducati | IWP162, 2760901B

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

Suitable for 2Pcs O2 Sensor for Toyota Camry Avalon Lexus ES300h (2018-2021) |234-9307 234-9304

Suitable for 2Pcs Oxygen Sensor for Nissan Altima Rogue 2.5L (2010-2013) | 234-9036 234-4382

4Pcs Air Fuel Ratio & O2 Sensor Set for Acura MDX 3.7L (2007-2009) | 234-5053, 234-4351

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Legacy Outback 2.5L (2013-2014) | 234-9136 234-4907

2Pcs Air Fuel Ratio & O2 Sensor for Subaru Impreza Outback 2.5L (2004-2008) | 234-9120 234-4446

Suitable for 4Pcs Fuel Injector Set for Ford Escape Fusion 1.5L EcoBoost | DS7Z9F593DA, FJ1235

Suitable for 4Pcs Lambda O2 Sensor Set for Maserati Ghibli 3.0L V6 (M157) 2017 | 670009076, 670002200, 670031347, 670031348

4Pcs Air Fuel Ratio & O2 Sensor Set for Infiniti QX56 QX80 5.6L V8 | 234-5095 234-4381

4Pcs Wideband O2 Sensor for BMW 128i 328i X3 X5 (E90/E82) | 234-5138, 234-5139, 234-4876, 234-4892

4Pcs Air Fuel Ratio & O2 Sensor Set for Ford F-150 3.7L & Explorer 3.5L (2011-2015) | 234-5038 234-4490

2Pcs O2 Sensor for Lexus RX330 Toyota Highlander (2004-2006) | 234-9042 234-4168

4Pcs Air Fuel Ratio & O2 Sensor Set for Honda Accord & Acura MDX 3.5L 3.7L (2008-2014) | 234-5098 234-4461

Suitable for 2Pcs O2 Sensor for Chevy Silverado Tahoe GMC Sierra | 234-4940 234-4974

4Pcs O2 Sensor for Nissan Altima Maxima Pathfinder V6 (2015-2019) | 234-9148 234-4985 234-4986

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

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