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Denso 234-4577 Oxygen Sensor - Downstream
| Brand | Denso 234-4577 |
|---|---|
| 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 | 26.26 |
| Product line | OE Style |
| Fits | Ford · 7 vehicles |
OE style. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support efficient engine performance and fuel economy.
Threaded mounting. Specific-fit design with a male connector and 4-wire harness.
Cross-references Bosch 16744, Ford BV6Z9G444A and Motorcraft DY1202 for the same application. See all 6.
Denso OE Style Oxygen Sensor for Ford Applications
Denso 234-4577 is a heated, specific-fit oxygen sensor built for direct replacement in select Ford exhaust systems. It is engineered for the downstream position on 2013-2016 Ford Escape and 2014-2016 Ford Transit Connect, with OE-style fitment for accurate installation and dependable signal performance.
Key Features
- OE Style replacement oxygen sensor from Denso
- Specific fit for direct installation on listed Ford vehicles
- Heated sensor design for faster operating response
- 4-wire configuration with male connector
- Threaded mounting with 0.708 in. thread diameter
- 26.26 in. wiring harness length
- Built to OE standards with precision construction
- Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination
Detailed Description
Denso 234-4577 is an OE-style oxygen sensor designed for downstream use on the Ford Escape and Ford Transit Connect listed below. It is a specific-fit, threaded sensor with a heated design, 4-wire layout, and male connector, making it a direct replacement for the original sensor location. This part cross-references Ford BV6Z9G444A for the same application.
Denso’s OE-style product line focuses on exact replacement fit and factory-level construction. For drivers searching for a downstream oxygen sensor for 2013-2016 Ford Escape or 2014-2016 Ford Transit Connect, part number 234-4577 provides the correct configuration for those applications. The sensor’s protective trap layer is intended to help shield the sensing element from contamination that can affect exhaust feedback and engine management.
Vehicle Fitment
- Fits 2013-2016 Ford Escape, downstream.
- Fits 2014-2016 Ford Transit Connect, downstream.
What This Sensor Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect downstream exhaust feedback readings
- Reduced fuel economy caused by a failing sensor
- Rough engine operation tied to inaccurate air-fuel monitoring
- Emissions test failures linked to sensor degradation
Installation Notes and Tips
Confirm the downstream sensor location before ordering and match the connector, wire count, and threaded mounting style to the original part. Use the vehicle’s existing exhaust routing and sensor position as the reference for installation. For Ford Escape and Ford Transit Connect applications, verify the harness length and connector orientation before final fitment. Part number 234-4577 is a specific-fit replacement, not a universal sensor.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for replacement accuracy and consistent performance. The OE-style design is intended to deliver the correct fit and function for the listed Ford applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2016 | Ford | Escape | Downstream | OE Style |
| 2016 | Ford | Transit Connect | Downstream | OE Style |
| 2015 | Ford | Escape | Downstream | OE Style |
| 2015 | Ford | Transit Connect | Downstream | OE Style |
| 2014 | Ford | Escape | Downstream | OE Style |
| 2014 | Ford | Transit Connect | Downstream | OE Style |
| 2013 | Ford | Escape | Downstream | OE Style |
| No rows match your filter. | ||||