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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

Suitable for Upstream Air Fuel Ratio Sensor for Ford F-150 Fusion Escape (2011-2018) | 234-5176 EJ5Z9F472B

Suitable for Downstream Right O2 Sensor for Toyota RAV4 3.5L V6 (2006-2012) | 234-4501

Suitable for Downstream O2 Sensor for Toyota Tundra Sequoia Tacoma V8 (2013-2017) | 234-4926 8946504510

Suitable for O2 Sensor for Jeep Wrangler Ram 1500 Dodge Charger (2022-2023) | 68224424AA

Suitable for O2 Sensor for Chrysler Dodge Jeep Ram VW Routan (2008-2019) | 234-4588 56028995AA

Suitable for Upstream Air Fuel Ratio Sensor for Mazda 3 Mazda 5 2.0L 2.3L | 234-5015 LF8R188G1

Suitable for Downstream Right O2 Sensor for Hyundai Santa Fe 2.7L (2007-2009) | 234-4437 39210-3E220

EGT Sensor for Dodge Ram 2500 3500 6.7L Cummins (2007-2009) | 68002443AB 4954216

EGT Sensor for Ford F-650 F-750 5.9L Cummins Diesel (2008) | 904-7114 2596660C1

Suitable for EGT Exhaust Gas Temperature Sensor for VW Jetta Beetle 2.0L (2004-2005) | 06A906088

Suitable for Upstream Air Fuel Ratio Sensor for Hyundai Santa Fe Kia Sedona Sorento V6 | 234-4854 392103C100

Suitable for Upstream Air Fuel Ratio Sensor for Land Rover LR4 Range Rover Sport 5.0L | 234-9095 250-54072

Suitable for Downstream O2 Sensor for Toyota Corolla Yaris Vios 1.3L 1.5L 1.8L | 89465-52370

Suitable for Downstream O2 Sensor for Toyota Tundra Land Cruiser Lexus LX470 | 234-4154 8946539885

Downstream O2 Sensor for Subaru WRX Forester Impreza Legacy | 234-4195 22690-AA900

Downstream O2 Sensor for Toyota Camry Sienna Lexus ES300 GS300 | 234-4623

Suitable for Upstream Air Fuel Ratio Sensor for Infiniti QX56 QX80 Nissan Patrol 5.6L (VK56VD) | 234-5095

Suitable for Upstream Air Fuel Ratio Sensor for Mazda 3 2.3L Turbo (Mazdaspeed) | 234-5042 L3CE188G1

Suitable for Front O2 Sensor for Harley Davidson Sportster 883 1200 | 32700026 932-14067

Suitable for Downstream O2 Sensor for Toyota Avensis 2.0L 2.4L (2003-2008) | 89465-05130

Downstream/Upstream O2 Sensor for Toyota Tundra Land Cruiser Lexus LX470 V8 | 234-4169

Downstream Wideband O2 Sensor for Dodge Ram 2500 3500 6.7L Cummins Diesel | 234-5090 05149263AA

Upstream 5-Wire Wideband O2 Sensor for BMW F30 F32 G30 X3 X4 | 11788631047

Suitable for Upstream Air Fuel Ratio Sensor for Mazda 6 2.5L (2009-2013) | 234-5033 L518-18-8G1A

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

Suitable for Upstream Air Fuel Ratio Sensor for Ford F-150 Fusion Escape (2011-2018) | 234-5176 EJ5Z9F472B

Suitable for Downstream Right O2 Sensor for Toyota RAV4 3.5L V6 (2006-2012) | 234-4501

Suitable for Downstream O2 Sensor for Toyota Tundra Sequoia Tacoma V8 (2013-2017) | 234-4926 8946504510

Suitable for O2 Sensor for Jeep Wrangler Ram 1500 Dodge Charger (2022-2023) | 68224424AA

Suitable for O2 Sensor for Chrysler Dodge Jeep Ram VW Routan (2008-2019) | 234-4588 56028995AA

Suitable for Upstream Air Fuel Ratio Sensor for Mazda 3 Mazda 5 2.0L 2.3L | 234-5015 LF8R188G1

Suitable for Downstream Right O2 Sensor for Hyundai Santa Fe 2.7L (2007-2009) | 234-4437 39210-3E220

EGT Sensor for Dodge Ram 2500 3500 6.7L Cummins (2007-2009) | 68002443AB 4954216

EGT Sensor for Ford F-650 F-750 5.9L Cummins Diesel (2008) | 904-7114 2596660C1

Suitable for EGT Exhaust Gas Temperature Sensor for VW Jetta Beetle 2.0L (2004-2005) | 06A906088

Suitable for Upstream Air Fuel Ratio Sensor for Hyundai Santa Fe Kia Sedona Sorento V6 | 234-4854 392103C100

Suitable for Upstream Air Fuel Ratio Sensor for Land Rover LR4 Range Rover Sport 5.0L | 234-9095 250-54072

Suitable for Downstream O2 Sensor for Toyota Corolla Yaris Vios 1.3L 1.5L 1.8L | 89465-52370

Suitable for Downstream O2 Sensor for Toyota Tundra Land Cruiser Lexus LX470 | 234-4154 8946539885

Downstream O2 Sensor for Subaru WRX Forester Impreza Legacy | 234-4195 22690-AA900

Downstream O2 Sensor for Toyota Camry Sienna Lexus ES300 GS300 | 234-4623

Suitable for Upstream Air Fuel Ratio Sensor for Infiniti QX56 QX80 Nissan Patrol 5.6L (VK56VD) | 234-5095

Suitable for Upstream Air Fuel Ratio Sensor for Mazda 3 2.3L Turbo (Mazdaspeed) | 234-5042 L3CE188G1

Suitable for Front O2 Sensor for Harley Davidson Sportster 883 1200 | 32700026 932-14067

Suitable for Downstream O2 Sensor for Toyota Avensis 2.0L 2.4L (2003-2008) | 89465-05130

Downstream/Upstream O2 Sensor for Toyota Tundra Land Cruiser Lexus LX470 V8 | 234-4169

Downstream Wideband O2 Sensor for Dodge Ram 2500 3500 6.7L Cummins Diesel | 234-5090 05149263AA

Upstream 5-Wire Wideband O2 Sensor for BMW F30 F32 G30 X3 X4 | 11788631047

Suitable for Upstream Air Fuel Ratio Sensor for Mazda 6 2.5L (2009-2013) | 234-5033 L518-18-8G1A

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