Best Catalytic Converter Oxygen Sensors and Related Options

The right catalytic converter oxygen sensor depends on your vehicle’s year, make, model, engine, and whether you need an upstream or downstream sensor. The options below include vehicle-specific sensor pairs for select Toyota, Honda, Chrysler, Fiat, and Jeep models, plus a catalytic converter cleaner that is not a sensor replacement. The Prius pair suits drivers needing both positions; the Honda CR-V and Fit options are model-specific choices. Confirm part numbers and fitment before ordering.

Product Best suited for What it includes
Sangyue Store oxygen sensor pair 2004–2009 Toyota Prius 1.5L Upstream and downstream sensors
BLPextrm oxygen sensor pair 2007–2009 Honda CR-V 2.4L Upstream and downstream sensors
MOTOKU oxygen sensor pair Listed Chrysler, Fiat, and Jeep applications Upstream and downstream sensors
MOTOKU Honda Fit oxygen sensor pair 2007–2008 Honda Fit 1.5L Upstream and downstream sensors
MotorPower Care cleaner Drivers considering a fuel-additive cleaner Two 8.45-fluid-ounce bottles

Sangyue Store Prius Oxygen Sensor Pair

Sangyue Store upstream and downstream oxygen sensors for Toyota Prius

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This two-piece set is listed for the 2004–2009 Toyota Prius with a 1.5L four-cylinder engine. It includes one upstream and one downstream oxygen sensor, making it a relevant option when both positions need replacement.

Best for: Prius owners who have verified their vehicle’s engine and need both sensor positions. The listing states that it includes a one-year unlimited-mileage quality guarantee.

Check before ordering: The listed application is specific to the Prius 1.5L for model years 2004–2009. Confirm the engine and sensor positions match your vehicle.

BLPextrm Honda CR-V Oxygen Sensor Pair

Upstream and downstream oxygen sensors listed for Honda CR-V

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This pair is listed for the 2007–2009 Honda CR-V 2.4L four-cylinder engine. The stated replacement part numbers are 234-9062 and 234-4359. The product description also identifies a stainless steel shell, aluminum oxide capture layer, and pre-coated threads.

Best for: CR-V owners whose vehicle details and required part numbers match the listing. The two sensors cover upstream and downstream positions.

Check before ordering: The seller advises confirming vehicle year, make, model, image, and part number. Do not assume fitment based only on the CR-V name.

MOTOKU Multi-Model Oxygen Sensor Pair

MOTOKU upstream and downstream oxygen sensor pair

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This upstream and downstream pair is listed for Chrysler 200 models from 2015–2017, Fiat 500X models from 2016–2018, and Jeep Cherokee models from 2014–2019 or Renegade models from 2015–2020.

Best for: Owners of one of the listed applications who need both sensor positions. Its multi-model fitment can help shoppers compare several related vehicle applications in one listing.

Check before ordering: The provided details do not specify engine configurations or replacement part numbers. Verify exact fitment for the specific vehicle before purchase.

MOTOKU Honda Fit Oxygen Sensor Pair

MOTOKU upstream and downstream oxygen sensors for Honda Fit

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This set is listed for the 2007–2008 Honda Fit with a 1.5L engine. Its stated replacement numbers include 234-9060, 234-4358, and several Honda part numbers: 36531-RME-A00, 36531-RME-A01, 36531-RME-A51, and 36531-RME-A52.

Best for: Honda Fit owners who need both upstream and downstream sensors and can match the listed engine and part numbers.

Check before ordering: The listed fitment is limited to the 1.5L Fit for 2007 and 2008. Compare the vehicle’s existing part number with the supplied references.

MotorPower Care Catalytic Converter Cleaner

MotorPower Care catalytic converter cleaner two-pack

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This is a fuel additive, not an oxygen sensor or a replacement catalytic converter. The listing describes it as an O2 sensor and EGR cleaner for gasoline and hybrid vehicles and includes two 8.45-fluid-ounce bottles.

Best for: Drivers looking for a cleaning product rather than a replacement part. It may be considered separately from diagnosing or replacing a faulty sensor.

Important limitation: The product description says the catalytic converter must be intact. It will not repair a cracked, broken, or melted converter, so do not treat cleaner as a repair for physical damage.

Buying Guide: How To Choose A Catalytic Converter Oxygen Sensor

Which sensor position do you need?

Upstream and downstream sensors occupy different positions in the exhaust system. A listing that includes both does not mean both need replacement. Check the diagnostic information and vehicle service guidance to identify the affected position before choosing a single sensor or pair.

How can you check fitment?

  • Match the vehicle’s year, make, model, and engine size to the listed application.
  • Compare the existing sensor’s part number with the replacement numbers when available.
  • Confirm whether the listing covers the upstream sensor, downstream sensor, or both.
  • When fitment details are incomplete, verify them with a parts professional or the seller before ordering.

Does a cleaner replace an oxygen sensor?

No. A fuel additive is not a replacement sensor. A cleaner may be an option for a different maintenance purpose, but it cannot repair a physically damaged catalytic converter. Diagnose the cause of a warning light rather than assuming a cleaner will resolve it.

When is a two-sensor set useful?

A pair can be convenient when both sensor positions have been identified for replacement and the vehicle matches the listing. If only one sensor is needed, compare the part number and position carefully to avoid buying an unnecessary component.

Frequently Asked Questions

Are upstream and downstream oxygen sensors interchangeable?

Not necessarily. They serve different positions, and the correct replacement depends on the vehicle and the sensor location. Confirm the required position and part number.

Can an oxygen sensor issue cause a check-engine light?

An oxygen sensor may be related to a check-engine warning, but the warning alone does not establish which part has failed. Use diagnostic information and vehicle-specific service guidance.

Will catalytic converter cleaner fix a broken converter?

No. The cleaner listing specifically says it will not repair a cracked, broken, or melted catalytic converter.

Should I buy a pair if only one sensor is faulty?

Not automatically. Identify which sensor position requires attention, then choose a compatible part or set based on that need.