NTK 24365 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right

Direct-Fit Air/Fuel Ratio Sensor

NTK 24365 is a specific-fit heated air/fuel ratio sensor for import and domestic applications. It is built as a Direct Fit 5-Wire A/F Sensor for precise replacement on a wide range of BMW and Mini applications, with Rolls-Royce Ghost coverage as well.

Key Features

• Specific-fit design for direct replacement on listed applications
• Heated sensor type for faster operating response
• 5-wire configuration for air/fuel ratio monitoring
• 18.0 mm thread diameter with 0.38 thread length
• 18.8 harness length for application-specific routing
• NTK 24365 part number for catalog matching and ordering

Detailed Description

NTK 24365 is an OE-style air/fuel ratio sensor engineered for direct-fit replacement where a 5-wire heated sensor is specified. NTK, part of the NGK family, focuses on oxygen sensor technology and manufactures sensors with controlled ceramic materials and extensive production testing to meet OE-level fit, form, and function. This sensor is used across BMW 650i, 550i, 750i, X5, M5, M6, X6, Mini Cooper, and related applications, including upstream positions on many listings. The part number 24365 helps confirm the correct sensor when cross-checking catalog data for BMW and Mini service work.

This part cross-references Bosch 17010 and DENSO Auto Parts 234-5026 for the same application.

Common Uses

• Replaces a failed air/fuel ratio sensor causing mixture control faults
• Addresses check engine light concerns tied to sensor signal errors
• Restores proper upstream exhaust feedback for fuel management
• Helps correct drivability issues related to inaccurate oxygen sensing
• Supports service on BMW and Mini emissions systems

Installation Notes

Verify the connector style, wire count, thread diameter, and listed position before installation. Confirm the application by year, make, model, and position in the fitment table, since this sensor is specific-fit and not universal. Use the vehicle service procedure for removal and installation, and inspect the exhaust bung threads before fitting the new sensor. The part number 24365 should be matched to the catalog listing before final installation.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing and built to meet or exceed OE specifications. The brand is recognized for OE application technology and sensor coverage across import and domestic vehicles.