Denso 234-4419 Oxygen Sensor - Downstream
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-4419 Oxygen Sensor - Downstream

Brand Denso 234-4419
Position Downstream
Connector Gender Male
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 0.708
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 44.61
Product line OE Style
Fits Ford · 4 vehicles

OE style replacement. Precision-built for exact replacement and a first-time fit.

Heated sensor. Helps support quicker operation and consistent performance.

Threaded mounting. Installs with a secure, specific-fit connection.

Cross-references Bosch 18042, Ford AT1Z9G444A and Motorcraft DY1142 for the same application. See all 6.

$76.18Free shipping
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Order total $76.18
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Denso 234-4419 Oxygen Sensor for Transit Connect

Denso 234-4419 is an OE Style heated oxygen sensor built for precise replacement and consistent signal performance. It is a direct-fit, threaded sensor for the downstream position on select Ford Transit Connect models, with fitment covering 2010-2013 applications.

Key Features

  • OE Style replacement for accurate fit and function
  • Heated oxygen sensor design for faster operating response
  • Specific fit for the downstream location
  • 4-wire configuration with male connector
  • Threaded mounting design with 0.708 in. thread diameter
  • Wiring harness length: 44.61 in.

OE Style Design

The Denso OE Style line is built to match original equipment requirements for fit and performance. Denso 234-4419 uses precision construction for first-time fitment and is engineered for the downstream oxygen sensor location on 2010-2013 Ford Transit Connect models. Denso also incorporates an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life.

This part cross-references Ford AT1Z9G444A for the same application.

What It Helps Address

  • Check engine light related to oxygen sensor performance
  • Incorrect air-fuel ratio readings from a worn downstream sensor
  • Reduced fuel economy caused by inaccurate exhaust feedback
  • Slow sensor response after heat cycling or contamination
  • Driveability issues tied to exhaust monitoring faults

Installation Notes

Compatible With 2010-2013 Ford Transit Connect, downstream. Verify connector style, thread size, and harness routing before installation. Because this is a threaded, specific-fit sensor, proper removal of the old sensor and careful tightening during installation are important to avoid exhaust leaks or thread damage. Confirm the downstream location before ordering Denso 234-4419.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for replacement accuracy and dependable operation. The brand’s OE Style approach focuses on exact fit, correct electrical connection, and consistent sensor output for the intended Ford Transit Connect application.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2013FordTransit ConnectDownstreamOE Style
2012FordTransit ConnectDownstreamOE Style
2011FordTransit ConnectDownstreamOE Style
2010FordTransit ConnectDownstreamOE Style
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 18042Ford — AT1Z9G444AMotorcraft — DY1142NTK — 22132Walker Products — 250-24873Walker Products — 350-34535