Bosch 15974 oxygen sensor for the 2005-2015 Toyota Tacoma V6 4.0L and other vehicles measures the exhaust air-fuel ratio for the ECU. This Bosch premium oxygen sensor is a wideband A/F type, so it gives the ECU more detailed readings than a switching sensor.
- Wideband A/F sensing with continuous, high-precision air-fuel ratio measurement across the full lambda range
- Reaches operating temperature in less than 7 seconds for quick closed-loop control and cold-start performance
- Metal housing with an integrated heater element and TSP coating to resist vibration, corrosion and contamination
- Ceramic construction and optimized heater control for steady output through rapid load changes and thermal cycles
- Built to withstand exhaust streams up to 1,880°F
Quick facts
- Part: Bosch 15974 oxygen sensor
- Fits: 2005-2015 Toyota Tacoma V6 4.0L and other vehicles
- Position: Upstream, upstream left, upstream right
- Material: Metal housing
- Condition: New
A worn upstream sensor can show up as a check engine light, a rough idle or poorer fuel economy, and a shop can read the stored codes. These signs alone do not prove the sensor is the problem, since an intake air leak is another common cause.
Fits
The 2005-2010 Toyota Corolla 4-cylinder 1.8L, the 2005-2009 Toyota Tundra V8 4.7L, the 2005-2014 Tundra V6 4.0L, the 2007-2021 Tundra V8 5.7L and the 2010-2019 Tundra V8 4.6L are among the vehicles this oxygen sensor fits, along with many more. This listing is one sensor, and how many a vehicle takes varies by engine.
Specifications
Fit and size
- Position: Upstream, upstream left, upstream right
- Quantity per vehicle: varies by engine
- Thread size: M18 - 1.5
- Hex size: 22 mm
- Overall length: 15.9 in
- Length (sealing surface to end of connector): 14.8 in
- Terminal quantity: 4
- Mounting type: Threaded
Build and materials
- Sensor type: Wideband A/F
- Housing material: Metal
- Wiring harness: Included
- Condition: New
- Warranty: Bosch 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks
In the box
One oxygen sensor with its wiring harness.
Installation notes
- Direct-fit connectors are built for quick installation.
- Conductive anti-seize is pre-applied on the threads.
Frequently Asked Questions
Is this oxygen sensor right for a 2005-2010 Toyota Corolla 4-cylinder 1.8L?
Yes. Bosch 15974 is listed for the 2005-2010 Toyota Corolla 4-cylinder 1.8L, which takes one. If your car is not named on this page, look it up in the "Vehicles it fits" section by year and engine.
Does the Bosch 15974 oxygen sensor come with a wiring harness?
Yes. Bosch 15974 comes with its wiring harness. This listing is one sensor.
Is this Bosch O2 sensor a wideband or a switching type?
This sensor is a wideband A/F type with 4 terminals. It measures the air-fuel ratio continuously across the full lambda range instead of switching between rich and lean.
What thread size and wrench size does this oxygen sensor have?
The thread size is M18 - 1.5 and the hex size is 22 mm. Overall length is 15.9 in, and it measures 14.8 in from the sealing surface to the end of the connector.
Is anti-seize already on the threads of this oxygen sensor?
Yes. Conductive anti-seize comes pre-applied on the threads, and the direct-fit connectors are built for quick installation.
