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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.

💡 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

Hot Products

Filters

Suitable for Downstream O2 Sensor for Chevy Corvette 6.2L HHR 2.4L | 234-4332

Suitable for Downstream O2 Sensor for Infiniti QX60 Nissan Altima Pathfinder V6 | 234-4986, 0258030315

Suitable for Upstream Air Fuel Ratio Oxygen Sensor for Nissan Frontier Pathfinder Versa 1.6L 2.5L | 22693-1KT0A 234-9106

Upstream Air Fuel Ratio Sensor for Toyota Tundra & Lexus LS460 (2007-2013) | 234-9051 89467-04020

Suitable for Downstream O2 Sensor for Mitsubishi Outlander Sport Lancer 2.0L | 234-4116 1588A141

Suitable for Upstream Air Fuel Ratio Sensor for Chevy Cruze 1.4L 1.8L (10-18) | 55566648, 55210300

Upstream Air Fuel Ratio Sensor for Honda Accord & CR-V (2013-2017) | 365315A2A01 234-9131

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

Downstream 4-Wire O2 Sensor for Ford Edge Explorer Taurus Police Interceptor | 234-4575

Suitable for Upstream Air Fuel Ratio Sensor for Subaru Outback Forester Impreza 2.5L | 234-9015

LSU 4.9 Wideband O2 Sensor / AFR Sensor for Chevy, Ford, Honda & AEM/PLX Gauges| 0258017025

Upstream 5-Wire Wideband O2 Sensor for BMW V8 X5 M5 Alpina & Mini | 234-5026 11787576673

Suitable for Upstream Air Fuel Ratio Sensor for Toyota Corolla Prius Scion iQ | 234-9112

Suitable for Downstream Right Oxygen Sensor for Nissan Frontier & Xterra (2005-2012) | 234-4313 226A0EA210

Suitable for Universal Heated O2 Sensor for Chevy Silverado & Tahoe (2003-2005) | 234-4668 12583804

Upstream Air Fuel Ratio Sensor (5-Wire) for Kia Optima & Hyundai Sonata | 234-5029 392102G100

EVAP Emissions Leak Detection Pump (LDP) for Chevy Volt Malibu Cadillac | 310-007 22865478

Suitable for High Pressure Fuel Pump (HPFP) for Mazda 3 6 CX-5 2.0L 2.5L | PE19203F0 PE01203F0B

4Pcs Fuel Injectors Nozzle for Toyota Avalon Camry Highlander Sienna Tacoma 3.5L V6 (2016-2019) | 23250-0P090 FJ1407

Suitable for 6Pcs Fuel Injector Set for Honda Gold Wing GL1800 Motorcycle | 16450MCA013 16450MCA003

4Pcs Fuel Injector Set for Hyundai Accent Chevy Aveo 1.5L 1.6L | 25380933 FJ1043

6Pcs Fuel Injector Set for Ford Expedition Transit Lincoln 3.5L V6 | FJ1138 BL3Z9F593A

Suitable for 2Pcs Fuel Injectors Nozzle for Harley Davidson Dyna Motorcycle 275CC 25 Degree (07-15) | 27709-06A R2025DEG

4Pcs Fuel Injector for Mercury Outboard 40HP-60HP 2-Stroke Marine | 25335288 892123002

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

Suitable for Downstream O2 Sensor for Chevy Corvette 6.2L HHR 2.4L | 234-4332

Suitable for Downstream O2 Sensor for Infiniti QX60 Nissan Altima Pathfinder V6 | 234-4986, 0258030315

Suitable for Upstream Air Fuel Ratio Oxygen Sensor for Nissan Frontier Pathfinder Versa 1.6L 2.5L | 22693-1KT0A 234-9106

Upstream Air Fuel Ratio Sensor for Toyota Tundra & Lexus LS460 (2007-2013) | 234-9051 89467-04020

Suitable for Downstream O2 Sensor for Mitsubishi Outlander Sport Lancer 2.0L | 234-4116 1588A141

Suitable for Upstream Air Fuel Ratio Sensor for Chevy Cruze 1.4L 1.8L (10-18) | 55566648, 55210300

Upstream Air Fuel Ratio Sensor for Honda Accord & CR-V (2013-2017) | 365315A2A01 234-9131

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

Downstream 4-Wire O2 Sensor for Ford Edge Explorer Taurus Police Interceptor | 234-4575

Suitable for Upstream Air Fuel Ratio Sensor for Subaru Outback Forester Impreza 2.5L | 234-9015

LSU 4.9 Wideband O2 Sensor / AFR Sensor for Chevy, Ford, Honda & AEM/PLX Gauges| 0258017025

Upstream 5-Wire Wideband O2 Sensor for BMW V8 X5 M5 Alpina & Mini | 234-5026 11787576673

Suitable for Upstream Air Fuel Ratio Sensor for Toyota Corolla Prius Scion iQ | 234-9112

Suitable for Downstream Right Oxygen Sensor for Nissan Frontier & Xterra (2005-2012) | 234-4313 226A0EA210

Suitable for Universal Heated O2 Sensor for Chevy Silverado & Tahoe (2003-2005) | 234-4668 12583804

Upstream Air Fuel Ratio Sensor (5-Wire) for Kia Optima & Hyundai Sonata | 234-5029 392102G100

EVAP Emissions Leak Detection Pump (LDP) for Chevy Volt Malibu Cadillac | 310-007 22865478

Suitable for High Pressure Fuel Pump (HPFP) for Mazda 3 6 CX-5 2.0L 2.5L | PE19203F0 PE01203F0B

4Pcs Fuel Injectors Nozzle for Toyota Avalon Camry Highlander Sienna Tacoma 3.5L V6 (2016-2019) | 23250-0P090 FJ1407

Suitable for 6Pcs Fuel Injector Set for Honda Gold Wing GL1800 Motorcycle | 16450MCA013 16450MCA003

4Pcs Fuel Injector Set for Hyundai Accent Chevy Aveo 1.5L 1.6L | 25380933 FJ1043

6Pcs Fuel Injector Set for Ford Expedition Transit Lincoln 3.5L V6 | FJ1138 BL3Z9F593A

Suitable for 2Pcs Fuel Injectors Nozzle for Harley Davidson Dyna Motorcycle 275CC 25 Degree (07-15) | 27709-06A R2025DEG

4Pcs Fuel Injector for Mercury Outboard 40HP-60HP 2-Stroke Marine | 25335288 892123002

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