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O2 Sensor Socket - 3/8-Inch Drive by 7/8-Inch (22 mm)
O2 Sensor Socket - 3/8-Inch Drive by 7/8-Inch (22 mm)
Regular price
$9.99 USD
Regular price
$15.99 USD
Sale price
$9.99 USD
Unit price
per
Taxes included.
🚚Free & fast shipping from USA.
Best Seller in Check Engine Light Fix Tools
Full Refund if it doesn’t fix your CEL
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- 【Size】 This oxygen sensor socket is 7/8 inch (22 millimeter) hex fits almost all oxygen sensors. 3/8 inch square drive for use with ratchet.
- 【Design】O2 Sensor Tool Standard 6 point with low profile and slotted design to enable you remove oxygen sensors with the wiring harness still attached, and the socket is offset and compact which allows extra leverage even in hard to reach spots.
- 【Material】Our Oxygen Sensor Removal Tool is made from high performance chrome molybdenum and solid cast steel construction for strength and durability - Finished with Black Oxide to prevent rust.
- 【USE】This oxygen Sensor Wrench is built for use with ratchets and breakers bars to remove and install oxygen sensors and hex vacuum switches on vehicle, even if you don't have a lot of experience working with cars. This high quality tool can save your time!
- 【Service】 100% satisfaction guarantee, If you have any issues with the 02 sensor socket, simply contact customer service for troubleshooting help, parts, replacement, or refund. Our aim is to make you satisfy the parts and the service we provide for you.
Is it compatible with my car?
Yes, if your vehicle uses an M18 x 1.5mm O2 sensor thread — fits 99% of cars.
Which model should I choose?
Enough space: straight; Tight space: 45° or 90°. Unsure? Ask your mechanic.
How many do I need?
One per exhaust pipe. Inline engine: 1 pc. V6/V8 dual exhaust: 2 pcs.
Where is it made?
Made in the USA. Shipped from California, USA.
Wholesale
Buy 10+ and save 40% instantly!
60-Day Risk-Free Trial
Mini Cat Automotive Inc. set out to develop the highest quality car products, and we want you to share our confidence! That's why we back every sale with a 60-day money-back guarantee. If you're not absolutely satisfied with your order, please contact us and we'll get it fixed!
How to Choose the Right Mini Catalizador®
How to Choose the Right Mini Catalizador®
Choosing the right Mini Catalizador® is simple. Just follow these three steps:
1. Check Your O2 Sensor Thread
Our Mini Catalizador® O2 sensor spacers use a universal M18 × 1.5 thread and are designed for most vehicles with a threaded downstream (post-cat) O2 sensor.
Important: The spacer is installed on the downstream/post-cat O2 sensor, not the upstream/pre-cat sensor.
2. Choose the Right Angle
Choose the angle based on the available space around your downstream O2 sensor:
- Straight (180°) – Best when there is plenty of space around the O2 sensor.
- 45° – A good choice when moderate clearance is needed.
- 45° Pro – Same 45° angle, but with a larger internal catalytic core for stronger performance.
- 90° – Ideal for tight spaces and our most popular option.
- 90° Pro – Same 90° angle, but with a larger internal catalytic core for stronger performance.
Tip: If you're not sure which angle to choose, the 90° version is usually the easiest to install in tight areas.
3. Choose the Correct Quantity
The number of Mini Catalizador® spacers you need depends on the number of downstream/post-cat O2 sensors on your vehicle.
Install one spacer for each downstream/post-cat O2 sensor.
For example:
- 1 downstream O2 sensor → 1 spacer
- 2 downstream O2 sensors → 2 spacers
On many 4-cylinder vehicles, there is usually 1 downstream O2 sensor.
Many V6/V8 vehicles have 2 downstream O2 sensors, typically one for each bank, so 2 spacers are usually required.
What About P0420 or P0430?
P0420 and P0430 are catalytic-efficiency related trouble codes and can help identify which bank is reporting the issue.
However, the code alone does not determine how many spacers you need.
The safest way to choose the quantity is to count the downstream/post-cat O2 sensors on your vehicle and install one spacer on each one.
P0420 → Bank 1 catalytic efficiency code
P0430 → Bank 2 catalytic efficiency code
If your vehicle has both codes and has two downstream O2 sensors, 2 spacers are typically recommended — one for each downstream O2 sensor.
Quick Guide
Thread: M18 × 1.5
Installation position: Downstream / post-cat O2 sensor
Quantity: 1 spacer per downstream O2 sensor
Angle: Choose based on available clearance
Not sure which angle? 90° is the most popular choice for tight spaces.
Delivery Information
Delivery Information
All orders are shipped from our U.S. warehouses.
Order Processing
Processing Time: 1 business day (Monday–Saturday)
Order Cut-Off Time: 2:00 PM PT, Monday–Saturday
Orders placed after the cut-off time will be processed on the next business day.
No orders are processed or dispatched on Sundays (carrier services may be unavailable).
Please note: Processing time is separate from transit time. Shipping time begins after your order has been processed and handed over to the carrier.
Shipping Options
We offer three shipping methods:
Standard Shipping — FREE
Carrier: USPS Ground Advantage
Estimated Transit Time: 3–7 business days (shipping time only, processing time not included)
Standard Shipping is our free delivery option. While most packages arrive within the estimated timeframe, USPS delivery times may occasionally take longer due to factors outside of our control.
Possible causes of delays include:
- Severe weather conditions
- High holiday shipping volumes
- USPS processing center delays
- Carrier network disruptions
- Unexpected transportation issues
In some cases, USPS packages may remain at a processing facility for several days before tracking information is updated. Your package is still considered in transit while USPS continues processing.
Please note that USPS Ground Advantage is an economy shipping service. Delivery times may vary depending on your location, weather conditions, carrier workload, and other external factors.
Expedited Shipping — $20.00
Carrier: Amazon Logistics, USPS Priority Mail, or UPS 2nd Day Air® (depending on your location and availability)
Estimated Transit Time: 2–3 business days (shipping time only, processing time not included)
Expedited Shipping provides faster delivery than Standard Shipping and is recommended for customers who need their orders sooner.
We work with trusted logistics partners, including Amazon Logistics, to provide reliable and efficient delivery services. Amazon is only used as a third-party delivery partner, and we do not sell products through Amazon.
Express Shipping — $40.00
Carrier: Amazon Logistics, USPS Priority Mail Express, or UPS 2nd Day Air® (depending on your location and availability)
Estimated Transit Time: 1–2 business days (shipping time only, processing time not included)
Express Shipping is our fastest delivery option.
Depending on your location and package availability, we may use Amazon Logistics to provide fast and reliable delivery service.
Important Notes:
- UPS 2nd Day Air® delivers on business days only. Weekends and holidays are not counted as transit days.
- Amazon Logistics and USPS Priority Mail Express may provide weekend delivery in many locations.
- Delivery time is calculated from the date the carrier scans your package.Ex
- pedited and Express delivery times are estimates and are not guaranteed due to possible carrier delays.
- Severe weather, holiday periods, high shipping volumes, and carrier processing delays may affect delivery times.
Thanks to our multiple U.S. warehouse locations, some expedited and express orders may arrive faster depending on inventory availability and destination.
Couriers Used
We work with trusted shipping partners, including:
- USPS
- UPS
- Amazon Logistics
Amazon Logistics is used only as a delivery service partner to provide reliable and fast shipping. We do not sell products through Amazon.
The carrier used for your order may vary depending on your shipping address, package size, inventory location, and service availability.
Shipping Delays
Although we work hard to ensure timely delivery, occasional delays may happen after your package leaves our facility.
Delays may occur due to:
- Weather conditions
- High shipping volumes
- Carrier processing center backlogs
- Transportation disruptions
- Unexpected circumstances
If your tracking information shows that your package is delayed or remains at a carrier processing center, please allow additional time for carrier processing.
Sometimes packages may stay at a USPS or carrier processing center for several days without new tracking updates. This does not necessarily mean the package is lost; it may still be moving through the carrier network.
If your package is delayed, we will assist in contacting the carrier and monitoring tracking updates when necessary.
Order Notifications
After placing your order, you will receive an order confirmation email with your order details.
You will also receive email notifications when:
- Your order has been shipped
- Your package is out for delivery or delivered (when carrier tracking updates are available)
If the phone number provided during checkout is registered with WhatsApp, we will also send WhatsApp notifications:
- One notification after your order is placed
- One notification when your order has been shipped
Please make sure your email address and phone number are entered correctly at checkout to ensure you receive all order updates.
Shipping Costs
- Standard Shipping: Free
- Expedited Shipping: $20.00
- Express Shipping: $40.00
International shipments may require additional shipping charges depending on the destination and customs requirements.
Tracking
All orders include tracking information.
Customers can monitor shipment progress from dispatch until delivery.
Please note that tracking updates may occasionally be delayed while carriers process packages, especially during high-volume periods or unexpected service disruptions.
Cancellations
Orders can be canceled before shipment.
Once an order has been dispatched, please refer to our refund policy for further assistance.
Damaged Packages
If your package arrives damaged, please refuse delivery if possible and contact our customer service team immediately.
If the package was delivered while you were unavailable, please contact us with photos and order details so we can assist you.
Customer Support
WhatsApp: +1 636 775 6668
Email: service@minicatalizador.com
North America Office:
1400 University Ave, Riverside, CA 92507, USA
How to Install?
How to Install?
Please click the link https://www.minicatalizador.com/pages/how-to-install to watch the installation video.
IMPORTANT
IMPORTANT
CHOOSE MINICATALIZADOR.COM WITH CONFIDENCE
⚠️Authentic Mini Catalizador® is exclusively sold on our official website. Watch out for scams on another website. Guarantee yourself a genuine experience by purchasing directly from our website.
🚨Unlike cheap zinc-plated carbon steel products, our T-304 Premium Stainless Steel won't rust, fail, or damage your car at high temperatures. Don’t risk purchasing inferior imitations—choose the official certified product you can trust!
Customers praised this socket as "a must" for O2 sensor removal, with excellent durability and design. The offset design works well in tight spaces and difficult locations. One customer noted "it cleared the P0420" code. Most found it superior to regular wrenches, though one mentioned needing to deburr the drive hole slightly.
Some of the reviews shown are from related products the merchant grouped with this one.
A
I really like this little kit. It comes with so much for so little money. It's definitely a great bargain. I use it for it to replace an oxygen sensor on my truck and it performed flawlessly. I like that they have a short, a tall and different sockets that fit a different size socket wrench. One of them fits a 3/8 which is not common with this sort of tool. The nice little case is a welcomed addition, otherwise these tools would get lost in the mix with other regular sockets. The bungs on my headers weren't fouled up but it is nice to have the included thread cleaner in case the threads need some work. Overall I am very satisfied with this product and I can recommend it.
A
The 5PCS O2 Oxygen Sensor Socket Set is a fantastic toolset! It made removing and installing my oxygen sensor a breeze. The variety of socket sizes ensured a perfect fit, and the sturdy construction handled the job with ease. Highly recommend this set to anyone tackling oxygen sensor replacements—it’s a real time-saver!
A
This tool is a must if you’re trying to get an oxygen sensor out of your car. The oxygen sensor I had had been in place since 2007 since that’s when they built a car. It really didn’t wanna come out. I was able to put a hollow metal pipe on the ratchet to get enough leverage to loosen it up. But the tool held in there and did what it was supposed to do.
A
I got this set as a backup set for removing O2 sensors. These sensors can be difficult to remove if they've been installed for a while. Even with good sockets, there is always the possibility of potential issues. This set is an exceptional value. It's excellent quality and includes a hard case. They have a great finish with sizes clearly marked. These fit well, and sizes are accurate. They arrive oiled in the case and ready for use.
R
Some O2 sensors are just miserable to replace and that mostly depends on their location. This socket will make that miserable job a bit more pleasant since tight locations make open end wrenches very difficult to turn. This is a heavy socket designed for ⅜ inch square driver or ratchet and is very capable of turning out then turning in most O2 sensors.
H
Offset design helps reach sensors in tight places. Fits most common sensor size and works very well. Made from heavy weight metal and should last a long time. Good value.
C
Made it easy to replace my 2012 Honda CR-V O2 sensor. Only complaint is the chemical smell coming from the tools which get on your hands.
J
Made job much easier, regular sockets and wrenches will not work
E
Es una herramienta muy útil en el cambio de sensores de oxígeno, me fue muy fácil usarla y terminar mi trabajo, la herramienta es recomendable..
N
I bought this adapter so I wouldn’t struggle with the regular wrench. Although I tried the 22 wrench first, it was so hard it wouldn’t even budge. Then I used the adapter and boom it came off within 5min. The best tool to use if you’re trying to replace your oxygen sensor!
B
Year / Make / Model: 2019 Ford F150 SXT
Fit nice and tight on the sensor. No slop.
J
Didnt get what I ordered
w
Great product and great service
J
Worked good
A
It worked grate on a hard to remove 02 sensor. They seem well made and strong.
A
This worked very well on my Jeep, O2 sensor was in kinda of a difficult spot. Home mechanic? This needs to be in your tool box and price was right.
A
Funciona a la perfección para retirar los sensores de oxígeno, la calidad de fabricación y diseño son excelentes
A
Installed this and it cleared the P0420—definitely worth it.
A
Works like a charm. Definitely worth the purchase!
A
This offset oxygen sensor socket is well-made and very practical for working on vehicles with limited space. The side wire gate design allows easy access to sensors without damaging the wiring, and the 3/8-inch drive fits standard ratchets securely. It fits most cars and makes removing and installing oxygen sensors much easier compared to a regular socket.
The construction feels durable, and the finish resists wear even after repeated use. For anyone doing DIY automotive work or repairs, this tool is a reliable addition to the toolbox.
R
makes changing the sensor very easy, worth the cost, solid metal piece
N
I bought this adapter so I wouldn’t struggle with the regular wrench. Although I tried the 22 wrench first, it was so hard it wouldn’t even budge. Then I used the adapter and boom it came off within 5min. The best tool to use if you’re trying to replace your oxygen sensor!
C
Great Quality. Used several times and never snapped on me. Some sensors were extremely hard to remove and this did the job with the right socket wrench of course.
P
I couldn't have gotten the job done without this kit. The 22mm and 7/8 sockets worked perfectly for my hard to reach bank one sensor 1 O2 sensor in my 2018 GMC Sierra 1500 truck. I highly recommend this product.
❤️ Trusted by over 200,000 U.S. customers
WE
OTHERS
Money-Back Guarantee if Ineffective
60-Day Hassle-Free Returns
Official Website Guarantee
Google 4.8-Star Reviews
Compatible with All Vehicles
Made from 304 Stainless Steel
Euro 6 Catalytic Standard Core
Heat & Corrosion Resistant – Engine Safe
Expert Customer Support
HOW IT WORKS 👇
-
SMART DESIGN
Our NEW O2 Sensor Spacer with real 400cel precious metal mini Catalytic Converters and EU5 coating. We started with a simple o2 spacer, but then we've gone a step further by having built-in catalytic converters to allow the ECU to properly read exhaust gasses and perform at an optimal level.
-
EASY INSTALLATION
Our NEW O2 Sensor Spacer is useful for vehicles with failing catalytic converters, as it turns off the check engine light and eliminates stubborn Check Engine Light (CEL) codes, including P0420, P0430, and P0042. It's especially beneficial for modified competition vehicles.
-
PERFECT SOLUTION
Our Mini Cat is useful for vehicles with failing catalytic converters, as it turns off the check engine light and eliminates stubborn Check Engine Light (CEL) codes, including P0420, P0430, and P0042. It's especially beneficial for modified competition vehicles.
🚛Fast Delivery In The U.S.!
At Minicatalizador.com, our goal is to deliver your package as safely and quickly as possible. We deliver nationwide, from Bellingham, Washington to Imperial Beach, California and Madawaska, Maine to Key West, Florida – and everywhere in between. We want everyone to enjoy our benefits.
🛡️60 Days Money Back Guarantee
We are 100% convinced of our Products! That's why we give you a 60 day money back guarantee. If you are not satisfied, just send us a message to service@minicatalizador.com and we will find a customer-oriented solution.
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Unlocking the Purpose of a Mini Catalizador (Ox...
A Mini Catalizador, also known as an O2 Sensor Spacer, is a compact yet essential component in modern automotive exhaust systems. Its primary role is to enhance the performance and...
Unlocking the Purpose of a Mini Catalizador (Ox...
A Mini Catalizador, also known as an O2 Sensor Spacer, is a compact yet essential component in modern automotive exhaust systems. Its primary role is to enhance the performance and...
-
Mini Catalizadors (Oxygen Sensor Spacers): Func...
What Is a Mini Catalizador? A Mini Catalizador, also known as an O2 Sensor Spacer, is a compact mechanical device designed to modify the position of the oxygen sensor in...
Mini Catalizadors (Oxygen Sensor Spacers): Func...
What Is a Mini Catalizador? A Mini Catalizador, also known as an O2 Sensor Spacer, is a compact mechanical device designed to modify the position of the oxygen sensor in...
-
Widespread “Check Engine” Alerts Linked to Cata...
In recent months, auto repair shops across the U.S. have reported a surge in P0420 and P0430 error codes caused by inefficient catalytic converters, triggering one of the most common...
Widespread “Check Engine” Alerts Linked to Cata...
In recent months, auto repair shops across the U.S. have reported a surge in P0420 and P0430 error codes caused by inefficient catalytic converters, triggering one of the most common...
