HomeEmission Control > SensorsDenso 234-4493 Oxygen Sensor - Upstream
Part #: 234-4493

Denso 234-4493 Oxygen Sensor - Upstream

OE Style, Upstream
⚙️ 12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Upstream
🚗Fitment: Ford, Fiesta
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Overview of the Denso OE Style Oxygen Sensor 234-4493

The Denso OE Style Oxygen Sensor 234-4493 is designed specifically for Ford Fiesta models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a 15.24-inch wiring harness and a threaded mounting type for secure installation.

  • Heated oxygen sensor for accurate emissions readings
  • Specific fit for Ford Fiesta vehicles
  • 15.24-inch wiring harness length for optimal routing
  • Threaded mounting with 0.708-inch thread diameter
  • Four-wire design with male connector for reliable connection

Details on the Denso OE Style Product Line

The OE Style line by Denso focuses on delivering sensors that meet original equipment specifications. This ensures compatibility and performance that align with factory standards. The 234-4493 oxygen sensor maintains the integrity of the vehicle’s emission system by providing consistent and accurate sensor feedback.

Technical Description and Features

The Denso 234-4493 oxygen sensor is a heated sensor type, which allows it to reach operating temperature quickly for faster and more accurate readings. It includes a 15.24-inch wiring harness, providing sufficient length for proper installation in the engine bay of Ford Fiesta models. The sensor uses a threaded mounting type with a 0.708-inch thread diameter, ensuring a secure fit. The four-wire configuration and male connector gender support reliable electrical connections and sensor functionality.

Common Applications and Issues Addressed

  • Helps maintain optimal air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate oxygen level data
  • Prevents engine performance issues related to faulty oxygen sensors
  • Resolves check engine light triggers caused by sensor failure
  • Supports proper operation of the vehicle’s emission control system

Installation Notes and Tips

When installing the Denso 234-4493 oxygen sensor on a Ford Fiesta, ensure the sensor is threaded securely without over-tightening to avoid damage. Verify the wiring harness length of 15.24 inches is sufficient for your vehicle’s routing needs. Confirm the male connector matches the vehicle’s wiring harness for a proper electrical connection. It is recommended to use anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This ensures reliable performance and durability. While specific warranty details for part number 234-4493 should be confirmed with the supplier, Denso products typically come with a limited warranty covering defects in materials and workmanship.

BrandDenso
Part Number234-4493
PositionOE Style, Upstream
Connector GenderMale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length15.24

This part fits 12 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2019FordFiestaUpstream4-Pin; OE Style
2018FordFiestaUpstream4-Pin; OE Style
2017FordFiestaUpstream4-Pin; OE Style
2016FordFiestaUpstream4-Pin; OE Style
2015FordFiestaUpstreamOE Style
2014FordFiestaUpstream4-Wire Sensor; OE Style
2013FordFiestaManualUpstreamOE Style
2013FordFiestaUpstreamOE Style
2012FordFiestaManualUpstreamOE Style
2012FordFiestaAutomatic Dual ClutchUpstreamOE Style
2011FordFiestaManualUpstreamOE Style
2011FordFiestaAutomatic Dual ClutchUpstreamOE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

18124

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.