O2 Sensor Spacer with Mini Catalytic Converter - 4 Pack
- Regular price
- $39.98 USD
- Sale price
- $39.98 USD
- Regular price
-
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- The compact adapter threads between the exhaust-system sensor port and the oxygen sensor, adding controlled spacing together with an integrated mini catalyst core.
- Installation normally requires no cutting, welding or exhaust-system disassembly. Always confirm the vehicle’s thread size, available clearance and sensor location before installation. Allow the exhaust to cool completely; professional installation is recommended.
- P0420 relates to catalyst-efficiency readings on Bank 1, while P0430 relates to Bank 2. These codes indicate that efficiency has fallen below the vehicle’s expected threshold—but they do not automatically prove that the catalytic converter is physically damaged.
- Exhaust leaks, aging oxygen sensors, wiring faults, active misfires, contamination and converter wear may create similar readings. Diagnose the complete system before replacing parts or selecting a solution.
- A compatible sensor-port adapter may be used only when the exhaust hardware is mechanically intact. It cannot rebuild a melted, cracked or collapsed catalytic substrate, and it cannot repair a failed oxygen sensor.
- Sensor deterioration, damaged wiring, exhaust leaks and active engine faults should be identified and corrected first. Physical converter damage requires mechanical inspection and appropriate repair.
- Catalytic converters and oxygen sensors provide their most stable readings after reaching full operating temperature. Repeated short trips, stop-and-go traffic and extended idling can interrupt that process.
- High-mileage exhaust systems may also carry years of deposits, heat cycles and component wear. Driving conditions alone cannot identify a failed part—scan the vehicle, inspect the system and confirm product compatibility before installation.
FlowCat®
Awards & Certifications
Indicates that the electromagnetic radiation from the FlowCat® unit is below the limits specified by the Federal Communications Commission.
Indicates that Pedal Commander® meets strict emission standards set by the California Air Resources Board.
Pedal Commander® is a proud member of the Specialty Equipment Market Association and has been awarded numerous times.
FlowCat®
Customer Reviews
02/18/2024
Solid, Well-Machined Part
The stainless body feels substantial, and the threads looked clean right out of the package. After confirming compatibility, it installed securely and sat straight in the sensor port.
07/29/2025
Straightforward Installation
My mechanic installed it between the exhaust port and the existing oxygen sensor. The hex body was easy to reach with a wrench, and the finished connection looked clean and secure.
11/07/2023
Compact Fit for a Tight Space
Clearance around my exhaust system was limited, but this adapter fit without interfering with the nearby heat shield or sensor wiring. The compact design made a noticeable difference during installation.
04/12/2026
Worked With My Existing Sensor
After checking the fitment, my original oxygen sensor threaded into the adapter smoothly. The cable reached naturally, and I didn’t have to modify or reroute the wiring.
09/15/2024
No Cutting or Welding Required
I liked that this was a threaded installation. There was no need to cut the exhaust pipe, weld on another fitting or remove a large section of the exhaust system.
01/23/2025
Wrench-Friendly Design
The large hex section made it much easier to control the installation with a standard wrench. It tightened evenly and felt much more secure than some smaller adapters I’ve used.
06/05/2023
Good Fit on My Older Sedan
I installed this while servicing the exhaust system on my high-mileage sedan. The threads matched correctly, the sensor cable remained in its original position and the completed setup looked professional.
08/09/2026
Clean Installation on My SUV
After confirming the thread size and available clearance, this adapter fit my SUV without any trouble. It feels solid, and the installed assembly doesn’t look bulky or out of place.
03/17/2025
Worked Well During My Pickup Repair
I used this during exhaust work on an older pickup. The part was easy to handle underneath the truck, and the hex body gave me enough grip to tighten the connection properly.
12/21/2024
Manageable Weekend Project
With the vehicle safely raised and the exhaust completely cool, the installation was manageable using an oxygen-sensor socket and wrench. The part lined up correctly and threaded in smoothly.