NTK 27033 Air / Fuel Ratio Sensor - Upstream

Direct Fit Air/Fuel Ratio Sensor for Honda

NTK 27033 is a direct fit, heated 5-wire air/fuel ratio sensor built for specific Honda applications. It is engineered for upstream use on select Honda Civic and Honda CR-V models, with OE-style fit, form, and function for accurate exhaust feedback.

As part of NTK’s Direct Fit 5-Wire A/F Sensor line, this sensor reflects the brand’s focus on original-equipment coverage and application-specific design. NTK develops its ceramic sensor technology in-house and manufactures oxygen and air/fuel ratio sensors to OE specifications for import and domestic vehicles.

Key Features

• Direct fit air/fuel ratio sensor for specific Honda applications
• Heated sensor design for faster operating response
• 5-wire configuration for upstream exhaust monitoring
• 18.000 mm thread diameter with 0.38 thread length
• 12.5 in. wiring harness length
• Specific fit replacement, not universal
• Mounting bracket not included

Detailed Description

NTK 27033 is an upstream air/fuel ratio sensor designed for 2021-2022 Honda CR-V, 2021 Honda Civic, 2016-2020 Honda Civic, and 2017-2020 Honda CR-V applications. It is a direct fit replacement for the original sensor location and is built to match OE requirements for signal accuracy and installation compatibility. This part cross-references 365315K8004 for the same application.

For drivers searching for a Honda Civic upstream air/fuel ratio sensor or a Honda CR-V Bank 1 Sensor 1 replacement, NTK 27033 provides the correct specific-fit configuration. It is intended for vehicles that use a heated 5-wire sensor in the upstream position, helping maintain proper exhaust feedback for engine management.

What This Sensor Helps Address

• Check engine light related to upstream air/fuel ratio sensor faults
• Incorrect fuel trim readings from a failing sensor
• Rough idle or drivability issues tied to exhaust feedback errors
• Slow sensor response from an aging heated A/F sensor
• OE replacement needs for Honda Civic and Honda CR-V upstream locations

Installation Notes and Tips

Confirm the vehicle year, model, and upstream position before ordering. This sensor uses a specific-fit design and should be matched to the original connector and harness layout. The 5-wire heated configuration and thread dimensions should be verified against the removed part before installation. No mounting bracket is included.

Quality Assurance

NTK is a major OE sensor supplier with manufacturing controls focused on ceramic sensor production and extensive testing during production. NTK 27033 is built to meet or exceed OE specifications for fit, form, and function on the listed Honda Civic and Honda CR-V applications.