LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor
LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor is a direct-fit replacement sensor priced at $52.77. Designed for 4.7L V8 engines, it restores fuel efficiency and reduces emissions in Toyota Sequoia and Tundra models from 2000–2004.
● In stock
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Key features
- Fits 2000-2004 Tundra 4.7L
- Fits 2001-2004 Sequoia 4.7L
- Upstream and downstream compatible
- OEM-style electrical connector
- Heat-resistant metal housing
- Plug-and-play installation
- Sealing threads for leak-free fit
Pros
- +Exact fit for specified models
- +Affordable vs OEM dealership parts
- +Helps restore fuel efficiency
- +Reduces exhaust emissions
- +Durable in high-heat environments
Cons
- −May require connector matching
- −Not for non-4.7L engine variants
- −Installation requires basic tools
About LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor
What is LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor?
The LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor is an aftermarket oxygen sensor engineered to match OEM specifications for 2000–2004 Toyota Tundra and 2001–2004 Sequoia models equipped with the 4.7L V8 engine. This sensor monitors exhaust gas oxygen levels to help the engine control unit optimize air-fuel mixture, improving combustion efficiency, lowering emissions, and protecting the catalytic converter. A failing O2 sensor can trigger the check engine light, reduce fuel economy, or cause failed emissions tests—making timely replacement essential for reliable vehicle operation.
Key features
- Exact Fit — Designed specifically for 2000–2004 Toyota Tundra and 2001–2004 Sequoia with 4.7L engines.
- Dual Position — Suitable for both upstream (pre-catalytic) and downstream (post-catalytic) installation.
- Robust Connector — Matches original wiring configuration for secure electrical connection.
- Threaded Metal Body — Durable construction resists corrosion in high-heat exhaust environments.
- Heat Shield Compatible — Can be installed with or without factory heat shields.
- Plug-and-Play — No splicing required if original connector matches; universal types may need wiring adaptation.
- Sealing Threads — Ensures leak-free installation when properly torqued.
Who is LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor for?
This sensor is ideal for Toyota Tundra and Sequoia owners maintaining older 4.7L V8 trucks, DIY mechanics replacing failed O2 sensors, or technicians seeking a cost-effective, reliable alternative to dealership parts. It suits users prioritizing emissions compliance, fuel economy, and engine performance without sacrificing installation ease.
How does LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor compare?
Compared to standard polypropylene or universal O2 sensors, the LABWORK unit offers position-specific design and factory-matching connectors, reducing installation errors. It undercuts OEM dealer prices while maintaining compatibility with factory ECU tuning. Unlike generic sensors requiring wire cutting and splicing, this model supports plug-and-play in most cases, saving time and improving reliability over universal alternatives.
Best use cases
- →Replacing failed upstream O2 sensor
- →Fixing check engine light codes
- →Improving fuel economy
- →Passing emissions testing
- →Downstream sensor replacement
Is LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor right for you?
This O2 sensor suits DIYers and mechanics maintaining 2000–2004 Toyota Tundras or 2001–2004 Sequoias with 4.7L engines. Basic wrench skills and a socket set are needed. If your original connector differs, minor wiring adaptation may be required. Consider this over universal sensors for easier, more reliable installation.
How it compares: Compared to universal O2 sensors, this LABWORK model offers factory-matching connectors and position-specific tuning, reducing installation complexity. It's more reliable than budget sensors with mismatched leads and outperforms generic units in long-term durability and ECU compatibility.
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What vehicles does this O2 sensor fit?
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This LABWORK O2 sensor fits 2000–2004 Toyota Tundra and 2001–2004 Sequoia models with the 4.7L V8 engine. Always verify your engine size and sensor location before purchase to ensure compatibility.
Does this sensor require splicing wires?
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Most installations are plug-and-play if the connector matches. Some replacements may have universal connectors requiring splicing to match your vehicle's harness. Always compare connectors before installation.
How do I know if my O2 sensor is failing?
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Symptoms include a check engine light, reduced fuel economy, rough idle, failed emissions tests, or catalytic converter damage. A scan tool can confirm O2 sensor-related trouble codes like P0135 or P0141.
Is this sensor upstream or downstream?
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This LABWORK O2 sensor is designed to work in both upstream (pre-cat) and downstream (post-cat) positions on compatible Toyota 4.7L V8 models, offering flexibility for replacement needs.
Can I install this O2 sensor myself?
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Yes, with basic hand tools and mechanical knowledge. You’ll need a socket wrench, wire brush, and possibly a heat shield removal tool. Follow torque specs to avoid damaging threads or exhaust components.
How much does LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor cost?
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LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor is $52.77 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor in stock at Lab Work Auto?
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Yes, LABWORK For 01-04 Toyota Sequoia Tundra Upstream Downstream O2 Oxygen Sensor is currently in stock at Lab Work Auto.
Specifications
- SKU
- F7-6479