NTK 24535 Oxygen Sensor - Downstream or Upstream

Direct-Fit Oxygen Sensor

NTK Oxygen Sensor 24535 is a specific-fit, threaded heated sensor built for emission control applications that require accurate air-fuel feedback. It is part of NTK’s Direct Fit Oxygen Sensor line and is engineered for OE-style fit, form, and function.

Key Features

• Heated oxygen sensor for faster operating response.
• Specific-fit design for direct application matching.
• Threaded mounting with an 18 mm thread diameter.
• 4-wire configuration with a 21.75-inch harness length.
• Built by NTK, a major original equipment oxygen sensor supplier.

Detailed Description

NTK 24535 is an oxygen sensor for select Mitsubishi applications, including Fits 2004-2006 Mitsubishi Lancer, Upstream and Fits 1994-1998 Mitsubishi Galant, Downstream. This part number is engineered to match original equipment specifications and is manufactured with NTK’s ceramic-focused sensor technology for consistent signal output and reliable operation. As an OE-style replacement, it supports accurate exhaust monitoring and proper fuel control in the vehicle’s emission system. NTK 24535 is also referenced by cross numbers such as DENSO 234-4130 and Bosch 13891 for the same application.

What It Helps Address

• Check engine lights related to oxygen sensor performance.
• Incorrect air-fuel ratio readings.
• Slow sensor response during closed-loop operation.
• Emission system faults tied to worn sensor elements.
• Driveability issues caused by inaccurate exhaust feedback.

Installation Notes

Confirm the connector, harness length, thread diameter, and sensor position before installation. This oxygen sensor uses a threaded mounting style and a heated 4-wire design, so the replacement should match the original application exactly. Verify the vehicle’s upstream or downstream location against the fitment listing for NTK 24535 before ordering.

Quality Assurance

NTK states that these oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand is part of the NGK family and is recognized as a large original equipment oxygen sensor supplier.