HTMXJA Oxygen O2 Sensor Kit - 2-Pc Upstream & Downstream for GM 1.4L/1.5L (OE#250241188) Direct-Fit, Restores Fuel Efficiency

Replacement upstream and downstream O2 sensors for compatible GM 1.4L–1.5L engines that restore accurate exhaust monitoring and support efficient engine operation.

These HTMXJA oxygen sensors (2-piece set, OE#250241188) are designed as direct-fit replacements for specific Chevrolet models from 2016–2022. Built to match OEM dimensions and wiring, the pair replaces both upstream (pre-cat) and downstream (post-cat) sensors so your engine control module (ECM) regains reliable feedback on exhaust oxygen content. That helps the vehicle maintain correct air/fuel ratios and emission control under typical driving conditions.

How do these sensors affect fuel economy and engine performance?

Worn or failing O2 sensors can send incorrect voltage to the ECM, causing rich or lean fueling strategies that hurt economy and drivability. Installing new, precise sensors restores correct feedback so the engine can adjust fuel delivery more accurately. This may result in steadier idle, smoother throttle response, and more consistent fuel use.

• Direct-fit design conforms to OEM mounting and connector shapes
• High-precision sensing element for stable voltage output
• Helps the ECM maintain optimal air/fuel ratio under varied loads

Which vehicles and positions are these O2 sensors compatible with?

The set covers upstream and downstream positions for a range of GM 1.4L and 1.5L engines. Confirm your vehicle year, engine size, and OE number before ordering to ensure compatibility. This product lists OE#250241188 for each sensor in the pair.

• 2016–2019 Chevrolet Cruze 1.4L
• 2016–2022 Chevrolet Spark 1.4L and 2021–2022 Trax 1.4L
• 2018–2022 Equinox 1.5L, 2016–2022 Malibu 1.5L, 2016–2017 Volt 1.5L

What should I expect during installation and maintenance?

These sensors are manufactured to match OEM specifications so they typically install without modification. Installation requires basic automotive tools and safe access to the exhaust ports; some vehicles may need the car raised for clearance. After fitting, the ECM may need a short drive cycle or code reset for the system to relearn sensor operation.

• Straightforward swap using existing sensor locations and plugs
• May require anti-seize on threads—follow vehicle manufacturer guidance
• Clear engine codes after installation for accurate ECM relearn

What warranty and quality notes should buyers know?

HTMXJA supplies this pair with a six-month warranty that covers manufacturing defects. The sensors are produced from materials intended to resist exhaust conditions and are rated to match OEM fit and function, but buyers should verify OE numbers and model fitment before purchase. Routine inspection and proper installation help maximize service life.

• Included part reference: 250241188 (two sensors)
• Six-month limited warranty for manufacturing defects
• Confirm vehicle compatibility and OE numbers before ordering

Who is this for: Drivers and independent mechanics who own compatible Chevrolet models and need a reliable, direct-fit upstream and downstream oxygen sensor pair to restore accurate emission sensing and steady engine control. Ideal for routine replacement when check-engine lights indicate O2 sensor faults, or during exhaust and emission component maintenance when matching OEM specifications is important.