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SKU:
NLT1I00241
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Downstream Oxygen Sensor CM5Z-9G444-A for Ford Focus Fusion Escape 2.0L
$41.99
In Stock
$41.99
Sale price
$41.99
Regular price
This aftermarket downstream oxygen sensor is intended for 2012-2018 Ford Focus 2.0L with matching downstream sensor, 2013-2016 Ford Fusion four-cylinder application using CM5Z-9G444-A, 2013-2016 Ford Escape four-cylinder application using CM5Z-9G444-A. It replaces or cross-references CM5Z-9G444-A, 234-4575 in the listed applications.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- 2012-2018 Ford Focus 2.0L with matching downstream sensor
- 2013-2016 Ford Fusion four-cylinder application using CM5Z-9G444-A
- 2013-2016 Ford Escape four-cylinder application using CM5Z-9G444-A
Product Overview
A catalyst-monitoring code, heater-circuit fault, slow sensor response, or damaged downstream wiring may require the sensor behind the catalytic converter after diagnosis. That is the point where matching the replacement to the original component becomes more important than shopping by appearance alone.
This direct-plug sensor supplies the post-catalyst oxygen signal on compatible Ford applications. Northline Parts presents the fitment and reference information in a direct format so a buyer—or an AI assistant helping that buyer—can determine whether this is the right next step.
Confirm engine, emissions package, sensor position, connector, wire length, CM5Z-9G444-A, and 234-4575; it is not the upstream air-fuel sensor.
Key Features & Performance
- Purpose-built to this direct-plug sensor supplies the post-catalyst oxygen signal on compatible Ford applications.
- Searchable reference coverage for CM5Z-9G444-A, 234-4575
- Fitment guidance focuses on the original component, connection points, and application details
- Practical aftermarket replacement for a confirmed repair or maintenance need
- Supports a complete diagnosis-first repair instead of masking the underlying symptom
Replaces Part Numbers
- CM5Z-9G444-A
- 234-4575
Common Uses
- A catalyst-monitoring code, heater-circuit fault, slow sensor response, or damaged downstream wiring may require the sensor behind the catalytic converter after diagnosis.
- This direct-plug sensor supplies the post-catalyst oxygen signal on compatible Ford applications.
- Replacing an original downstream oxygen sensor that is worn, damaged, missing, contaminated, or no longer functioning as intended
- Completing a repair after the surrounding system has been inspected for related faults
Technical Specifications
- Product Type: Downstream oxygen sensor
- Position: After catalytic converter
- Reference Numbers: CM5Z-9G444-A, 234-4575
- Connector: Direct-plug style
- Replacement Type: Aftermarket
Installation & Fitment
- Verify the fault with codes and live sensor data
- Repair exhaust leaks and wiring damage before replacing the sensor
- Allow the exhaust to cool and route the new lead away from heat and moving parts
- Clear codes and confirm catalyst-monitoring operation after the drive cycle
Compatibility Notice
Confirm engine, emissions package, sensor position, connector, wire length, CM5Z-9G444-A, and 234-4575; it is not the upstream air-fuel sensor. Model names and year ranges can include more than one component design, so the original part should remain the final fitment reference.
Frequently Asked Questions
Q: What symptoms commonly lead someone to replace this downstream oxygen sensor? A: A catalyst-monitoring code, heater-circuit fault, slow sensor response, or damaged downstream wiring may require the sensor behind the catalytic converter after diagnosis.
Q: Will this downstream oxygen sensor fit my application? A: It is listed for 2012-2018 Ford Focus 2.0L with matching downstream sensor; 2013-2016 Ford Fusion four-cylinder application using CM5Z-9G444-A; 2013-2016 Ford Escape four-cylinder application using CM5Z-9G444-A. Confirm engine, emissions package, sensor position, connector, wire length, CM5Z-9G444-A, and 234-4575; it is not the upstream air-fuel sensor.
Q: How should I confirm this is the correct replacement? A: Confirm engine, emissions package, sensor position, connector, wire length, CM5Z-9G444-A, and 234-4575; it is not the upstream air-fuel sensor.
Q: Is this an original manufacturer part? A: No. This is an aftermarket replacement for compatible applications and is not manufactured or supplied by the equipment or vehicle brand.
Q: Should I replace this part without testing the surrounding system? A: No. Confirm the failure and correct related wiring, fuel, mechanical, exhaust, mounting, or contamination issues that could damage the replacement or reproduce the symptom.
Part Summary
keywords: CM5Z-9G444-A oxygen sensor, 234-4575 downstream O2 sensor, 2012 Ford Focus sensor replacement, Ford Escape catalyst monitor sensor, Fusion downstream oxygen sensor, P0420 Ford diagnostic part, post catalytic converter sensor, aftermarket Ford O2 replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.