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LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream

LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 is a brand-new upstream oxygen sensor with stainless steel construction, priced at $33.62. Ideal for DIY mechanics restoring fuel efficiency and reducing emissions in compatible Mazda 3 and Mazda 5 models.

$33.62

● In stock

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Price and availability may change. Click to see current details on Lab Work Auto.

Key features

  • Stainless steel shell for heat resistance
  • Teflon-covered wires for durability
  • Anti-seize coated threads for easy removal
  • High-temperature rubber seals included
  • Direct-fit design, no splicing needed
  • Upstream location for real-time feedback
  • Matches OE numbers 250-25029, 234-5015

Pros

  • +Direct fit saves time and wiring mods
  • +Affordable at $33.62 vs dealer parts
  • +Durable materials resist heat and corrosion
  • +Restores fuel efficiency and lowers emissions
  • +Brand new and tested for reliability
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Cons

  • Fits only specific Mazda models and years
  • Not for California-emission ESV vehicles
  • No installation tools included

About LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream

What is LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream?

The LABWORK O2 Oxygen Sensor is a brand-new, direct-fit upstream (pre-catalytic converter) replacement sensor designed for select Mazda 3 and Mazda 5 models from 2006 to 2013. Engineered to meet high-quality standards, this sensor monitors oxygen levels in exhaust gases to optimize fuel mixture, improve engine performance, and reduce harmful emissions. It's rigorously tested before shipping to ensure reliable operation and compatibility with specified non-California-emission ESV vehicles.

Key features

  • Stainless Steel Shell — Resists heat and corrosion for long-term durability.
  • Teflon-Covered Wires — Provides superior insulation and protection against abrasion.
  • Anti-Seize Coated Threads — Ensures easier removal during future maintenance.
  • High-Temperature Seals — Rubber seals prevent leaks under extreme operating conditions.
  • Direct-Fit Design — No splicing, adapters, or modifications required for installation.
  • Upstream Location — Delivers real-time feedback to the engine control unit for optimal combustion.
  • OE Number Match — Compatible with 250-25029, 234-5015, LFL7188G1A, and LF8R188G1.

Who is LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream for?

This oxygen sensor is ideal for Mazda owners and DIY auto repair enthusiasts seeking an affordable, reliable replacement for a failing upstream O2 sensor. It suits those maintaining Mazda 3 (2006–2013) and Mazda 5 (2008–2010) models equipped with 2.0L or 2.3L I4 engines. It’s especially valuable for users aiming to restore fuel economy, pass emissions tests, and avoid dealership pricing.

How does LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream compare?

Compared to standard aftermarket O2 sensors, the LABWORK model offers enhanced durability with stainless steel and Teflon components. It outperforms basic universal sensors that require splicing, while matching OE fit and function without the high cost of OEM dealership parts. It’s a balanced upgrade for drivers who want reliable performance and easier installation over generic alternatives, though it’s not certified for California-emission vehicles.

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Best use cases

  • Replacing failed upstream O2 sensor
  • Improving fuel economy in Mazda 3
  • Reducing emissions for inspection
  • DIY repair on 2.0L or 2.3L Mazda engines
  • Avoiding costly dealership replacements
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Is LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream right for you?

This sensor is best for Mazda 3 and Mazda 5 owners from 2006–2013 needing an upstream O2 replacement. Ideal for DIYers with basic mechanical skills. Confirm your vehicle’s engine size and emission type—this part is not for California ESV models. Alternatives include OEM sensors from dealers or universal types requiring splicing, but this LABWORK unit offers a reliable middle ground with direct fit and quality materials.

How it compares: Compared to universal O2 sensors, this LABWORK model eliminates splicing with a direct fit. It offers better durability than basic aftermarket units with stainless steel and Teflon protection, while costing less than OEM dealership sensors—though it lacks California emissions certification.

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Frequently Asked Questions

What does the LABWORK O2 sensor do?

It monitors oxygen levels in exhaust gases before the catalytic converter, helping the engine adjust fuel mixture for better efficiency, performance, and lower emissions in compatible Mazda models.

Does this oxygen sensor fit all Mazda 3 models?

No, it fits Mazda 3 models from 2006–2013 with 2.0L or 2.3L I4 engines, and Mazda 5 models from 2008–2010 with 2.3L engines. It is not for California-emission ESV vehicles.

How do I install the LABWORK O2 sensor?

It’s a direct-fit replacement—remove the old upstream sensor and install this one using standard wrenches. No splicing or adapters are needed, making it suitable for DIYers with basic tools.

Is the LABWORK O2 sensor new or rebuilt?

It is a brand-new oxygen sensor, factory-tested to ensure performance and reliability before shipment.

Can I use this sensor for California-emission vehicles?

No, this LABWORK O2 sensor is not designed for California-emission vehicles labeled ESV. Confirm your vehicle’s emission type before purchasing to ensure compatibility.

How much does LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream cost?

LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream is $33.62 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.

Is LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream in stock at Lab Work Auto?

Yes, LABWORK O2 Oxygen Sensor for Mazda 3 2006-2013 Mazda 5 2008-2010 Upstream is currently in stock at Lab Work Auto.

Specifications

SKU
F7-3840
Last updated May 14, 2026