Denso 234-4115 Oxygen Sensor - Upstream

Denso 234-4115 Oxygen Sensor Overview

Denso 234-4115 is an OE Style heated oxygen sensor built for specific-fit replacement on select Chrysler, Dodge, Jeep, and Plymouth applications. It is engineered for the upstream position and uses a 4-wire, female connector design with a threaded mount for direct replacement service.

For drivers searching for a Denso oxygen sensor for a 2001-2002 Chrysler PT Cruiser or a 2000 Jeep Grand Cherokee upstream oxygen sensor, this part is built to match the original configuration. The Denso 234-4115 also cross-references Bosch 13100 for the same application.

Key Features

• OE Style replacement oxygen sensor
• Heated sensor design for upstream placement
• Specific fit for direct replacement service
• 4-wire construction with female connector
• Threaded mounting type with 0.708 in. thread diameter
• Wiring harness length: 11.81 in.

Product Details

Denso manufactures this oxygen sensor to OE standards with precision-built dimensions for first-time fitment. The sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management performance and consistent fuel control. As an OE Style part, Denso 234-4115 is intended to restore the original sensor layout on compatible Chrysler, Dodge, Jeep, and Plymouth vehicles.

Compatible vehicle coverage includes Fits 2001-2002 Chrysler PT Cruiser, Upstream; Fits 2000 Chrysler Neon, Upstream; Fits 2000 Dodge Neon, Upstream; Fits 1999-2000 Jeep Grand Cherokee, Upstream; Fits 2000 Jeep TJ, Upstream; Fits 2000 Jeep Wrangler, Upstream; and Fits 2000 Plymouth Neon, Upstream. If you are replacing an upstream oxygen sensor on a Chrysler PT Cruiser, Jeep Wrangler, or Dodge Neon, this part number provides a direct-fit OE-style solution.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings
• Reduced fuel economy caused by a failing upstream sensor
• Slow or inaccurate sensor response
• Emissions test failures tied to sensor degradation

Installation Notes and Tips

Confirm the upstream sensor location before ordering, since this part is not universal and is built for specific applications only. Verify connector style, wire count, and thread size against the original sensor before installation. Because fitment varies by model and emissions package, check the vehicle notes for exclusions such as ULEV or California applications where listed.

Quality Assurance

Denso builds this sensor to strict OE standards and tests it for replacement accuracy and fit. The design focuses on exact dimensions, stable signal performance, and protection of the sensing element for long service life.