Oxygen Sensors, Ignition Coils & Injectors | Automotive Leader

Standard Quality, Without the Dealer Markup

Premium parts built for reliability. Fix it right, fix it for less

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Find Parts by Vehicle

Year

Make

Model

Part Number (Optional)

O2 Sensors

Restore your fuel efficiency and clear emissions tests with our reliable, high-precision aftermarket O2 sensors. Designed for seamless fitment, they help protect your engine and optimize emissions control

Engine Sensors & Electronics

Keep your vehicle's engine management system running smoothly with our wide range of diagnostics. From MAF to ABS sensors, our parts deliver accurate data to your ECU for safer, smoother driving

Set of 6 Suzuki Outboard Fuel Injectors 4-Hole 200HP 225HP 250HP 15710-93J00

Fuel System Components

Maximize your engine's power and fuel economy with our premium fuel system components. We offer dependable high-pressure fuel pumps and flow-matched injectors to ensure precise fuel delivery

Set of four black ignition coils for vehicles with automotive electrical connectors

Ignition Systems

Resolve engine misfires, rough idling, and poor acceleration with our reliable aftermarket ignition components. Explore our range of ignition coils, modules, and kits designed to restore consistent performance

Motorcycle/Powersports

Engineered to withstand the demanding conditions of the track, trail, or water, our powersports parts keep your ride responsive. We provide precision sensors, injectors, and ignition systems for top brands

Featured Brands

Acura

BMW

Chevrolet

Ford（Lincoln, Mercury）

Honda

Toyota

Performance Accessories

Best-selling products

Set of four automotive oxygen sensors with wiring harness and connectors for vehicle emission control

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

$70.95

4Pcs O2 Sensor for Chevy Silverado Tahoe GMC Sierra Escalade (14-18)| 12657188 12659516

$69.95

OEM oxygen sensor with green wiring and black electrical connector for vehicle emissions control

Suitable for 2Pcs Oxygen Sensor Set for Honda Accord 2.4L (08-12) | 234-9091 234-4462

$40.95

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

$35.95

4Pcs O2 Sensor Set for Nissan Frontier Xterra 3.3L V6 (2004) | 234-4198 234-3006

$112.95

Suitable for 6Pcs Fuel Injector Set for Lexus IS250 GS300 2.5L V6 (06-13) | 23209-39055 23209-31020

$71.95

4Pcs Air Fuel Ratio & O2 Sensor for Toyota RAV4 3.5L V6 (06-12) | 234-9049 234-9022 234-4501 234-4261

$82.95

4Pcs Air Fuel Ratio & O2 Sensor Set for Infiniti QX56 QX80 5.6L V8 | 226931LA0C 226931MC0A

$107.95

Fuel System

Fuel injector

Suitable for 6Pcs Fuel Injector Set for Lexus IS250 GS300 2.5L V6 (06-13) | 23209-39055 23209-31020

$71.95

Orange automotive fuel injector with black and red seals, metal tip, and electrical connector

Suitable for Fuel Injector for Yamaha YZF-R7 & FJR1300 | 5FL-13761-00-00

$30.95

8Pcs Fuel Injector Set for Chevy Silverado Suburban Tahoe 5.3L 6.0L V8 | 12594512

$63.95

8Pcs GDI Fuel Injector Set for Ford F-150 Mustang 5.0L V8 (2018-2022) | ML3E9G929BB

$87.95

6Pcs Fuel Injector Set for Lexus GS350 IS350 3.5L V6 (2007-2015) | 23250-31070 FJ786

$134.95

4Pcs Fuel Injector Set for Suzuki SX4 1.6L M16A Engine | 15710-54LA0

$55.95

Suitable for 6Pcs Fuel Injector Set for Dodge Durango Jeep Grand Cherokee 3.6L | 0280158233 FJ1147

$32.95

4Pcs Fuel Injector for Toyota Corolla Matrix Celica 1.8L (2000-2007) | FJ415 232500D040

$31.95

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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

Country/Region

Country/Region

Find Parts by Vehicle

Product Categories

O2 Sensors

Engine Sensors & Electronics

Fuel System Components

Ignition Systems

Motorcycle/Powersports

Featured Brands

Acura

BMW

Chevrolet

Ford（Lincoln, Mercury）

Honda

Toyota

Best-selling products

Fuel injector

📦Free US Shipping(Local Warehouse)

↩️30-Day Return, Exchange, and Refund Guarantee

🛡️2-Year Warranty(100% Brand New)

🤝Guaranteed Exact Fit

🔒Secure Encrypted Payment

🙌A long-standing store with the same name across multiple platforms—you can trust us

Subscribe to our email list to receive a 8% 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