Delphi ES10449 Oxygen Sensor - Front

Delphi ES10449 Oxygen Sensor Overview

The Delphi ES10449 is a heated oxygen sensor built for front-position applications on select Mercedes-Benz vehicles. It uses a 4-wire design, a round connector, and a 18 x 1.5 mm thread size with a 350 mm overall length for the specified fitments.

Built with Delphi’s OE heritage and supplier experience, this oxygen sensor is made to support accurate exhaust feedback in Mercedes-Benz C280, C36 AMG, S320, SL320, and other listed applications. If you are replacing a front oxygen sensor on a 1990-1996 Mercedes-Benz, ES10449 is a direct-fit reference to verify against your vehicle details.

Key Features

• Heated oxygen sensor for faster operating temperature response
• 4-wire configuration with round connector shape
• 18 x 1.5 mm thread size
• 350 mm overall length
• Front position application for listed Mercedes-Benz models
• Includes oxygen sensor and instruction sheet

Detailed Description

Delphi ES10449 is an emission control oxygen sensor engineered for front sensor locations on select Mercedes-Benz vehicles from 1990 through 1996. It is listed for applications including 1995-1996 Mercedes-Benz S320 front, 1996 Mercedes-Benz C280 front, and 1996 Mercedes-Benz C36 AMG front, along with additional 1990s Mercedes-Benz chassis listed in the fitment data. The ES10449 part number should be matched to the vehicle’s original sensor length, connector style, and thread specification before installation.

This part cross-references Bosch 13427 for the same application. The Delphi ES10449 also aligns with OE-style replacement needs where the original sensor uses a heated 4-wire layout and a 350 mm lead length.

What This Oxygen Sensor Helps Address

• Check engine light concerns related to oxygen sensor performance
• Incorrect air-fuel feedback from a worn front sensor
• Rough idle or drivability issues tied to exhaust sensor signal degradation
• Failed emissions testing caused by a faulty oxygen sensor
• Slow sensor response in heated exhaust monitoring systems

Installation Notes and Tips

Verify the connector shape, wire count, thread size, and overall length before ordering. For the listed Mercedes-Benz applications, confirm front sensor placement and chassis notes where shown, including the 1996 C280 and C36 AMG chassis cutoff detail. Use the vehicle’s original sensor routing and mounting location as the reference for ES10449 installation.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge, with engineering practices rooted in original-equipment development. That background is reflected in the ES10449 oxygen sensor and its OE-style application coverage for Mercedes-Benz front sensor replacements.