---
Title: Oxygen Sensor DELPHI ES21378-12B1
Description: Part number: ES21378-12B1

Simplified part number: ES2137812B1

OEM numbers (Original Equipment Manufacturer):

AUDI 057906262C (057906262C)
AUDI 4L0906262E (4L0906262E)
Language: en-US
Last updated: 2026-01-07
Canonical URL to this Markdown version of this page: [https://euparts.eu/en/oxygen-sensor-delphi-es21378-12b1.md](https://euparts.eu/en/oxygen-sensor-delphi-es21378-12b1.md)
Canonical URL to HTML version of this page (for humans): [https://euparts.eu/en/oxygen-sensor-delphi-es21378-12b1](https://euparts.eu/en/oxygen-sensor-delphi-es21378-12b1)
---

# Oxygen Sensor DELPHI ES21378-12B1

Breadcrumb: [Oxygen Sensor DELPHI ES21378-12B1](https://euparts.eu/en/oxygen-sensor-delphi-es21378-12b1.md)



## Product Info

- **Brand**: DELPHI
- **MPN (Manufacturer Part Numbers)**: ES21378-12B1
- **EAN**: 5012759655863
- **Price**: 63.25 EUR

## Parameters:

- Cable Length: 1,216 mm
- Oxygen Sensor: Heated

## Images:

1. [Image 1: Oxygen Sensor DELPHI ES21378-12B1](https://digital-assets.tecalliance.services/images/1600/e55f388b11e5758ee87428f3e13c8e404565b0cf.jpg)