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Oxygen Sensor Two-Piece Set

Find Parts by Vehicle

Year

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.

China Address

Room 602, No. 152 Helong East Road, Helong Subdistrict, Baiyun District, Guangzhou City Postal Code: 510000

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): 3-7 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

Oxygen Sensor Two-Piece Set

Find Parts by Vehicle

2Pcs O2 Sensor Upstream & Downstream for Audi TT VW Jetta Golf 1.8T - 06A906262Q 234-4809 234-4808

2Pcs O2 Sensor Up & Down for Honda Odyssey Pilot Ridgeline V6 (05-08) 234-4099 234-4727

2Pcs Upstream Left & Right O2 Sensor for Buick Enclave Chevy Traverse GMC Acadia 234-4815

2Pcs O2 Sensor Upstream & Downstream for Cadillac DeVille Eldorado Seville (2000-2003) 234-4650 234-4651

2Pcs Air Fuel Ratio & O2 Sensor for Toyota Camry 2.4L (2005-2006 Non-Calif) 234-9041 234-4603

2Pcs Air Fuel Ratio & O2 Sensor for Mazda RX-8 1.3L R2 Rotary (2009-2011) 234-9102 234-4349

2Pcs O2 Sensor Upstream & Downstream for Honda Civic 1.7L (D17A1 Engine Only) 234-4074 234-4092

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

2Pcs O2 Sensor Upstream & Downstream for BMW 328i 528i X3 Z4 - 234-5139 234-4892

2Pcs O2 Sensor Upstream & Downstream for Mazda 6 2.5L (2009-2013) | 250-25090 250-24859

2Pcs Air Fuel Ratio & O2 Sensor for Mazda 3 2.0L 2.3L (2006-2009)| 234-5015 234-4392

2Pcs O2 Sensor Upstream & Downstream for Chevy Equinox GMC Terrain 2.4L 234-4242 234-4530

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Sentra 1.8L 2.5L (2004-2006)234-5061 234-4835

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Versa & Versa Note 1.6L (2012-2017) | 234-9127 234-4534

2Pcs Upstream Wideband O2 Sensor for Ford F-150 Explorer Mustang 3.5L 3.7L - BL3Z-9F472-A

2Pcs O2 Sensor Upstream & Downstream for Nissan Altima Maxima 3.5L V6 (2010-2013) | 234-9096 234-4380

2Pcs O2 Sensor Set for Hyundai Sonata Kia Optima Sorento 2.4L (2015-2019) | 234-5714 234-8030

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

2Pcs O2 Sensor Upstream & Downstream for Suzuki Grand Vitara 2.7L V6 (2006-2008) | 234-9032 234-4387

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Altima 2.5L (13-17) - 226933TA0A 226A01HC0A

2Pcs O2 Sensor Upstream & Downstream (Passenger Side) for Jeep Wrangler 3.8L (2007-2010) | 234-4881 234-4587

2Pcs Air Fuel Ratio & O2 Sensor for Toyota Corolla Matrix 1.8L (2009-2010) | 234-9056 234-4305

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 Nissan Altima Maxima 2.5L 3.5L (2008-2010) | 234-9038 234-4381

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

Oxygen Sensor Two-Piece Set

Find Parts by Vehicle

2Pcs O2 Sensor Upstream & Downstream for Audi TT VW Jetta Golf 1.8T - 06A906262Q 234-4809 234-4808

2Pcs O2 Sensor Up & Down for Honda Odyssey Pilot Ridgeline V6 (05-08) 234-4099 234-4727

2Pcs Upstream Left & Right O2 Sensor for Buick Enclave Chevy Traverse GMC Acadia 234-4815

2Pcs O2 Sensor Upstream & Downstream for Cadillac DeVille Eldorado Seville (2000-2003) 234-4650 234-4651

2Pcs Air Fuel Ratio & O2 Sensor for Toyota Camry 2.4L (2005-2006 Non-Calif) 234-9041 234-4603

2Pcs Air Fuel Ratio & O2 Sensor for Mazda RX-8 1.3L R2 Rotary (2009-2011) 234-9102 234-4349

2Pcs O2 Sensor Upstream & Downstream for Honda Civic 1.7L (D17A1 Engine Only) 234-4074 234-4092

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

2Pcs O2 Sensor Upstream & Downstream for BMW 328i 528i X3 Z4 - 234-5139 234-4892

2Pcs O2 Sensor Upstream & Downstream for Mazda 6 2.5L (2009-2013) | 250-25090 250-24859

2Pcs Air Fuel Ratio & O2 Sensor for Mazda 3 2.0L 2.3L (2006-2009)| 234-5015 234-4392

2Pcs O2 Sensor Upstream & Downstream for Chevy Equinox GMC Terrain 2.4L 234-4242 234-4530

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Sentra 1.8L 2.5L (2004-2006)234-5061 234-4835

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Versa & Versa Note 1.6L (2012-2017) | 234-9127 234-4534

2Pcs Upstream Wideband O2 Sensor for Ford F-150 Explorer Mustang 3.5L 3.7L - BL3Z-9F472-A

2Pcs O2 Sensor Upstream & Downstream for Nissan Altima Maxima 3.5L V6 (2010-2013) | 234-9096 234-4380

2Pcs O2 Sensor Set for Hyundai Sonata Kia Optima Sorento 2.4L (2015-2019) | 234-5714 234-8030

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

2Pcs O2 Sensor Upstream & Downstream for Suzuki Grand Vitara 2.7L V6 (2006-2008) | 234-9032 234-4387

2Pcs Air Fuel Ratio & O2 Sensor for Nissan Altima 2.5L (13-17) - 226933TA0A 226A01HC0A

2Pcs O2 Sensor Upstream & Downstream (Passenger Side) for Jeep Wrangler 3.8L (2007-2010) | 234-4881 234-4587

2Pcs Air Fuel Ratio & O2 Sensor for Toyota Corolla Matrix 1.8L (2009-2010) | 234-9056 234-4305

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 Nissan Altima Maxima 2.5L 3.5L (2008-2010) | 234-9038 234-4381

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