NTK
Direct Fit 5-Wire A/F Sensor

NTK 27068 Air / Fuel Ratio Sensor - Upstream

Brand NTK 27068
Position Upstream
Wiring Harness Length 24.5000
Sensor Type Heated
Thread Length 0.38
Universal Or Specific Fit Specific
Wire Quantity 5
Thread Diameter 18.000
Mounting Bracket Included No
Product line Direct Fit 5-Wire A/F Sensor
Fits Mazda · 3 vehicles

Direct-fit design. Application-specific replacement sensor for OE-style fit, form, and function.

Heated 5-wire sensor. Built for fast response and precise air/fuel ratio monitoring.

OE-tested quality. Manufactured and tested to meet or exceed OE specifications.

Cross-references P54A188G1 for the same application. See all 1.

$159.51Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $159.51
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Product Overview

NTK 27068 is a direct-fit heated air/fuel ratio sensor built for specific applications with a 5-wire design and a 24.5-inch harness. It is engineered for precise exhaust feedback and OE-style fitment on the listed application.

Fits 2016-2018 Mazda CX-3, upstream. This NTK 27068 sensor is a specific-fit replacement for the listed bank 1 sensor 1 application.

Key Features

  • Direct-fit design for straightforward replacement on the specified application.
  • Heated sensor construction for faster operating response.
  • 5-wire configuration for air/fuel ratio monitoring.
  • 18 mm thread diameter with 0.38 thread length.
  • 24.5-inch wiring harness for application-specific routing.

Detailed Description

NTK 27068 is part of the Direct Fit 5-Wire A/F Sensor line, which focuses on application-specific replacement sensors with OE-style fit, form, and function. NTK draws on its oxygen sensor manufacturing expertise and ceramic technology to produce sensors that are extensively tested during manufacturing for quality and reliability that meet or exceed OE specifications. This part cross-references P54A188G1 for the same application.

For Mazda CX-3 service, this upstream sensor is specified for 2016-2018 models and supports accurate exhaust mixture feedback where the engine management system depends on a precise signal. The NTK 27068 part number is useful when matching the correct direct-fit sensor for the listed vehicle application.

What It Is Used For

  • Replacing a failed upstream air/fuel ratio sensor.
  • Restoring accurate exhaust mixture feedback to the engine control system.
  • Addressing sensor-related fault codes tied to mixture monitoring.
  • Correcting drivability issues caused by inaccurate sensor output.
  • Returning the vehicle to proper emissions-system operation.

Installation Notes and Tips

Verify the connector, harness length, thread diameter, and thread length before installation. This is a specific-fit sensor, so confirm the listed Mazda CX-3 application and upstream position before ordering. Use the part number 27068 to match the correct sensor for the vehicle.

Quality Assurance

NTK states that its oxygen sensors are manufactured and tested to meet or exceed OE specifications. The brand is part of the NGK family of products and is recognized as a major original equipment sensor supplier.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2018MazdaCX-32.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2017MazdaCX-32.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2016MazdaCX-32.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
P54A188G1