HomeEmission Control > SensorsBosch 13986 Oxygen Sensor - Downstream
Part #: 13986

Bosch 13986 Oxygen Sensor - Downstream

Bosch Validated Oxygen Sensor, Downstream
⚙️ 4 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$115.37Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Bosch Validated Oxygen Sensor, Downstream
🚗Fitment: Toyota, Tacoma
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Bosch Validated Oxygen Sensor 13986

The Bosch Validated Oxygen Sensor 13986 is designed specifically for Toyota Tacoma models, providing precise emission control and engine performance monitoring. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal vehicle operation.

  • Compatible with Toyota Tacoma vehicles
  • Part number 13986 for exact fitment
  • Narrow-band heated oxygen sensor type
  • 33.9-inch wiring harness length with connector included
  • Flange mounting type with 18 mm thread diameter
  • Standard replacement grade with metal housing
  • 4-wire configuration with blade terminals and rectangular male connector
  • Overall length of 37.6 inches for proper installation

Detailed Features and Specifications

This Bosch oxygen sensor features a narrow-band heated design, which allows for faster sensor warm-up and improved emission control. The sensor includes a 33.9-inch wiring harness with a rectangular male connector and four blade terminals, ensuring secure and reliable electrical connections. The flange mounting type with an 18 mm thread diameter and 22 mm hex size allows for straightforward installation on compatible Toyota Tacoma models. Constructed with a durable metal housing finished in steel, this sensor is built to withstand harsh engine environments. The sensor’s overall length of 37.6 inches and 36.4-inch length from sealing surface to connector end provide the necessary reach for proper fitment.

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line is engineered to meet strict quality and performance standards, offering reliable emission control components for specific vehicle applications. This line focuses on providing sensors that are tested and validated for exact fitment and function, reducing installation issues and ensuring consistent engine management performance. The 13986 sensor is part of this line, tailored for Toyota Tacoma vehicles requiring a narrow-band heated oxygen sensor.

Common Applications and Problem Resolution

  • Helps correct engine misfires caused by faulty oxygen sensors
  • Improves fuel efficiency by providing accurate air-fuel ratio data
  • Reduces harmful emissions by ensuring proper catalytic converter function
  • Resolves check engine light triggers related to oxygen sensor faults
  • Maintains smooth engine idling and acceleration performance

Installation Notes and Tips

When installing the Bosch Validated Oxygen Sensor 13986 on a Toyota Tacoma, ensure the vehicle is cool to avoid burns. Use the 22 mm hex size to remove the old sensor and install the new one securely with the flange mounting. Confirm the wiring harness length and connector type match the vehicle’s factory setup to avoid electrical issues. No mounting bracket is included, so use the existing mounting points. Verify the sensor’s four-wire configuration and blade terminals align with the vehicle’s wiring harness for proper connection.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet OEM standards, ensuring reliable performance and durability. The Bosch Validated Oxygen Sensor 13986 undergoes rigorous testing for fitment and function specific to Toyota Tacoma models. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control sensors to cover manufacturing defects and performance issues.

This part fits 4 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2002ToyotaTacomaStandard Cab Pickup2.4LL4DownstreamBosch Validated Oxygen Sensor
2002ToyotaTacomaStandard Cab Pickup2.7LL4DownstreamBosch Validated Oxygen Sensor
2001ToyotaTacomaStandard Cab Pickup2.4LL4DownstreamBosch Validated Oxygen Sensor
2001ToyotaTacomaStandard Cab Pickup2.7LL4DownstreamBosch Validated Oxygen Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.