20 Best O2 Sensor Fitting [2024]

Are you looking for the best O2 Sensor Fitting? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling O2 Sensor Fitting.

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1 Ledaut O2 Oxygen Sensor Mounting Boss and Plugs (2 Bungs/ 2 Plugs) Notched Style Oxygen Sensor... Ledaut O2 Oxygen Sensor Mounting Boss and Plugs (2 Bungs/ 2 Plugs) Notched Style Oxygen Sensor...
2 JGR 2 PCS Fitting Bung 18MM Thread Pitch 1.5 JGR 2 PCS Fitting Bung 18MM Thread Pitch 1.5
3 O2 Oxygen Sensor Fitting Plugs or Weld Bungs (10 pack Steel Bungs, M18 x 1.5) O2 Oxygen Sensor Fitting Plugs or Weld Bungs (10 pack Steel Bungs, M18 x 1.5)
4 LEDAUT M18X1.5 O2 Oxygen Sensor Stepped Mounting Bung and Plugs (1 Bungs/1 Plugs) Oxygen Sensor... LEDAUT M18X1.5 O2 Oxygen Sensor Stepped Mounting Bung and Plugs (1 Bungs/1 Plugs) Oxygen Sensor...
5 M18 x 1.5 Stainless Steel 304 Female Threaded Stepped Weld Bung Metric Mounting Boss Fitting for O2... M18 x 1.5 Stainless Steel 304 Female Threaded Stepped Weld Bung Metric Mounting Boss Fitting for...
6 Shineyoo O2 Oxygen Sensor Mounting Bung and Plugs (6 Bungs/6 Plugs) M18X1.5 Notched Style Oxygen... Shineyoo O2 Oxygen Sensor Mounting Bung and Plugs (6 Bungs/6 Plugs) M18X1.5 Notched Style Oxygen...
7 M18X1.5 O2 Oxygen Sensor Bung Stepped Notched Style Mounting Bung And Plugs (1 Bungs/1 Plugs)... M18X1.5 O2 Oxygen Sensor Bung Stepped Notched Style Mounting Bung And Plugs (1 Bungs/1 Plugs)...
8 O2 Oxygen Sensor Fitting Plugs or Weld Bungs (10 Steel Stepped Bungs, M18 x 1.5)… O2 Oxygen Sensor Fitting Plugs or Weld Bungs (10 Steel Stepped Bungs, M18 x 1.5)…
9 Joywayus Stainless Steel Inner Hex Head Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5 Thread (Pack... Joywayus Stainless Steel Inner Hex Head Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5 Thread...
10 O2 Oxygen Sensor Bung Fitting Plug,Exhaust Hex Plug Cap M18 x 1.5 Thread O2 Oxygen Sensor Bung Fitting Plug,Exhaust Hex Plug Cap M18 x 1.5 Thread
11 Sensitivity Sensor Flange Fittings, Exquisite Metal Wear-resistant Oxygen Sensor Flange, for Toyota... Sensitivity Sensor Flange Fittings, Exquisite Metal Wear-resistant Oxygen Sensor Flange, for...
12 Joywayus Stainless Steel Outer Hex Head Flange Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5... Joywayus Stainless Steel Outer Hex Head Flange Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5...
13 HongBoW Hardware 2 Pcs M18x1.5 Metric Stainless Steel Outer Hex Head Flange Pipe Fitting Oxygen O2... HongBoW Hardware 2 Pcs M18x1.5 Metric Stainless Steel Outer Hex Head Flange Pipe Fitting Oxygen...
14 Olivia&Oliver 2pcs Stainless Steel Inner Hex Head Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5... Olivia&Oliver 2pcs Stainless Steel Inner Hex Head Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5...
15 AotoKoop Universal O2 Oxygen Sensor Stepped Mounting Bung and Plug, M18x1.5 Threaded Oxygen Sensor... AotoKoop Universal O2 Oxygen Sensor Stepped Mounting Bung and Plug, M18x1.5 Threaded Oxygen...
16 Oxygen Sensor Flange 3/8 Thickness Bolt On O2 Sensor Flange with M8x1.25 Stud Fittings Fit for... Oxygen Sensor Flange 3/8 Thickness Bolt On O2 Sensor Flange with M8x1.25 Stud Fittings Fit for...
17 Joywayus 2Pcs Stainless Steel Outer Hex Head Flange Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5... Joywayus 2Pcs Stainless Steel Outer Hex Head Flange Pipe Fitting Plug Oxygen O2 Sensor Bung...
18 M16 x 1.5 Stainless Steel 304 Female Threaded Stepped Weld Bung Metric Mounting Boss Fitting for O2... M16 x 1.5 Stainless Steel 304 Female Threaded Stepped Weld Bung Metric Mounting Boss Fitting for...
19 ZBN Oxygen Sensor O2 Sensor Downstream Fits 234-4732 Compatible With Subaru Impreza Forester Legacy... ZBN Oxygen Sensor O2 Sensor Downstream Fits 234-4732 Compatible With Subaru Impreza Forester...
20 JoyTube O2 Sensor Bung Plugs M18 x 1.5 Stainless Steel Oxygen with Hex Head Pipe Fittings (Pack of... JoyTube O2 Sensor Bung Plugs M18 x 1.5 Stainless Steel Oxygen with Hex Head Pipe Fittings (Pack...
Bestseller No. 1
Ledaut O2 Oxygen Sensor Mounting Boss and Plugs (2 Bungs/ 2 Plugs) Notched Style Oxygen Sensor...
  • Notched style O2 oxygen sensor mounting bung was made of 304 stainless steel easy to weld .
  • The oxygen sensor plugs was made of plated mild steel with zinc plating.
  • The size of our oxygen sensor plugs M18 x 1.5 thread, fit for all standard O2 sensors.
  • Weld bung and plugs was easy to weld and offer fantastic value for the user.
  • Designed to adding a 02 sensor in any place you need one . Great for custom exhaust installation,headers,down pipes etc.
Bestseller No. 2
JGR 2 PCS Fitting Bung 18MM Thread Pitch 1.5
  • Fits with M18 x 1.5 holes.
  • Internal and external thread M18 x 1.5
  • Threads made with dedicated tool, perfect accuracy and repeatability.
Bestseller No. 3
O2 Oxygen Sensor Fitting Plugs or Weld Bungs (10 pack Steel Bungs, M18 x 1.5)
  • High quality oxygen sensor fittings with many different types to choose from
  • Plugs can be screwed into the O2 Sensor
  • Welding bungs can be used for re-attaching O2 Sensor to any universal exhaust pipe application
  • Proudly manufactured in the USA by After Market Auto & More
  • Interested in large quantities? Send a message for a quote.
Bestseller No. 4
LEDAUT M18X1.5 O2 Oxygen Sensor Stepped Mounting Bung and Plugs (1 Bungs/1 Plugs) Oxygen Sensor...
  • Ledaut O2 oxygen sensor bung was made of 304 stainless steel.
  • The oxygen sensor nut bung cap was made of plated mild steel with zinc plating.
  • Weld bung and plugs was easy to weld and offer fantastic value for the user.
  • Designed to adding a 02 sensor in any place you need one
  • Great for custom exhaust installation,headers,down pipes etc.
Bestseller No. 5
M18 x 1.5 Stainless Steel 304 Female Threaded Stepped Weld Bung Metric Mounting Boss Fitting for O2...
  • Stainless Steel 304 for corrosive environments, rigid and durable body design
  • Precision CNC machined for tight, leak free performance and has polished finish appearance
  • Clean metric M18*1.5 straight thread; Threaded though whole part; Suitable for common O2 automotive and motorcycle replacement sensors
  • Use for your custom oxygen sensor install, exhaust, down pipe, headers, exchangers and other installations where weld-in or weld-on metric connection...
  • Easy to weld; Stepped double sided design with thick top head flange
Bestseller No. 6
Shineyoo O2 Oxygen Sensor Mounting Bung and Plugs (6 Bungs/6 Plugs) M18X1.5 Notched Style Oxygen...
  • Notched style O2 oxygen sensor mounting bungs made of easily weldable 304 stainless steel.
  • The O2 oxygen sensor plugs was made of mild steel plated with zinc plating.
  • Our O2 oxygen sensor plugs are available in M18 x 1.5 thread size and fit most standard O2 sensors. The plugs is machined with an M18-1.5 thread and...
  • Weld bung and plugs was easy to weld,Great for custom exhaust installation,headers,down pipes etc and excellent value for the user.
  • Products undergo qualified quality control,Please rest assured to buy our products and we hope you will have a pleasant shopping experience.
Bestseller No. 7
M18X1.5 O2 Oxygen Sensor Bung Stepped Notched Style Mounting Bung And Plugs (1 Bungs/1 Plugs)...
  • O2 oxygen sensor bung was made of 304 stainless steel easy to weld
  • The size of our oxygen sensor plugs is M18 x 1.5 thread, fit for most of standard O2 sensors.Bungs are machined with M18-1.5 threads and have a...
  • Designed to adding a 02 sensor in any place you need one . Great for custom exhaust installation,headers,down pipes etc.
  • These o2 sensor bungs are ideal for welding into aftermarket exhaust to give you somewhere to mount an o2 sensor. Just drill a hole and weld these on....
  • These mild steel bungs are great for adding oxygen sensors to your exhaust system. They can also be used for replacing rusted, or stripped out,...
Bestseller No. 8
O2 Oxygen Sensor Fitting Plugs or Weld Bungs (10 Steel Stepped Bungs, M18 x 1.5)…
  • High quality stepped oxygen sensor mounting boss
  • Precision CNC machined M18 x 1.5 metric threading
  • Welding bungs can be used for re-attaching O2 Sensor to any universal exhaust pipe application
  • Use for automotive, motorcycle, and marine replacement sensors and drains
  • Manufactured by AMAAM in the USA
Bestseller No. 9
Joywayus Stainless Steel Inner Hex Head Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5 Thread (Pack...
  • Material : Stainless Steel
  • Allows removing oxygen sensor
  • 18 x 1.5 mm Stainless Steel Hex Socket Plug (mates with 18 x 1.5 mm weld nut.
  • Fit For Custom Exhaust , Headers , Down Pipes or for Adding a extra O2 Sensor for use with a Wideband.
Bestseller No. 10
O2 Oxygen Sensor Bung Fitting Plug,Exhaust Hex Plug Cap M18 x 1.5 Thread
  • Aftermarket O2 Oxygen Sensor Plug,contains 2 pcs with 2 gasket.
  • Made from 304 stainless steel,offering good durability.
  • High quality socket head fitting,anti-corrosion and anti-rust .
  • Easy to Install & Replace.
  • Fits for most of standard O2 sensors.
Bestseller No. 11
Sensitivity Sensor Flange Fittings, Exquisite Metal Wear-resistant Oxygen Sensor Flange, for Toyota...
  • Easy to install, direct replacement for old or broken parts.
  • Professional manufacturing, the kit has high level of accuracy and sensitivity.
  • According to original specifications, direct replacement part for the old one.
  • Exquisite workmanship, this product is perfect fitting your vehicle.
  • Made of high hardness metal material, wear-resistant and corrosion resistant.
Bestseller No. 12
Joywayus Stainless Steel Outer Hex Head Flange Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5...
  • Material : Stainless Steel
  • Allows removing oxygen sensor
  • Outer contour: the hexagonal turn-key 17
  • 18 x 1.5 mm Stainless Steel Hex Socket Plug (mates with 18 x 1.5 mm weld nut.
  • Fit For Custom Exhaust , Headers , Down Pipes or for Adding a extra O2 Sensor for use with a Wideband.
Bestseller No. 13
HongBoW Hardware 2 Pcs M18x1.5 Metric Stainless Steel Outer Hex Head Flange Pipe Fitting Oxygen O2...
  • Material : Stainless Steel 304
  • Fit For Custom Exhaust , Headers , Down Pipes
  • Can be screwed into the O2 Sensor
  • Size: M18 x 1.5
  • Package Quantity : 2 Pcs
SaleBestseller No. 14
Olivia&Oliver 2pcs Stainless Steel Inner Hex Head Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5...
  • Bungs are machined with M18-1.5 threads and have a recessed step for easier welding flush with a surface.
  • Package includes: 2 rings and 2 plugs.
  • Allows removing oxygen sensor
  • Material : Stainless Steel
  • Made in China,if you interested in large quantities, pls send a message for a quote.
Bestseller No. 15
AotoKoop Universal O2 Oxygen Sensor Stepped Mounting Bung and Plug, M18x1.5 Threaded Oxygen Sensor...
  • Size: standard M18 x 1.5 Thread stepped o2 sensor bung kit (both boss and plug)
  • Material: iron, surface treatment is high quality Electric plating nickel for corrosion resistance and good hardness improve anti friction, keep...
  • Application: the mounting bung and plug kit are great for adding oxygen sensors to your exhaust system. They can also be used for replacing rusted, or...
  • Unique Stepped Design: designed to adding a 02 sensor in any place you need, great for custom exhaust installation, headers, down pipes etc
  • Weld bung and plugs was easy to weld and offer fantastic value for the user
Bestseller No. 16
Oxygen Sensor Flange 3/8 Thickness Bolt On O2 Sensor Flange with M8x1.25 Stud Fittings Fit for...
  • Superior Quality --- This oxygen sensor flange kit is made of high hardness metal material, wear-resistant and corrosion resistant. Universal fit for...
  • Size --- Overall Dimensions: 2 3/4" (2.75") x 1 9/16" (1.5625") x 3/8" (3.75"). Inside Diameter: 18mm (11/16" .6875"). Bolt Hole Center to Center: 1...
  • Easy Installation --- Including M8x1.25 studs, according to original specifications. The bolt on o2 sensor flange is easy to install, direct...
  • Exquisite Workmanship --- Professional manufacturing, the o2 sensor flange has high level of accuracy and sensitivity. Exquisite workmanship, this...
  • Quality Assurance --- As a professional seller, we provide high quality products and considerate services. Every product must go through strict...
Bestseller No. 17
Joywayus 2Pcs Stainless Steel Outer Hex Head Flange Pipe Fitting Plug Oxygen O2 Sensor Bung M18x1.5...
  • Material : Stainless Steel.
  • Allows removing oxygen sensor.
  • Outer contour: the hexagonal turn-key 17.
  • 18 x 1.5 mm Stainless Steel Hex Socket Plug (mates with 18 x 1.5 mm weld nut.
  • Fit For Custom Exhaust , Headers , Down Pipes or for Adding a extra 02 Sensor for use with a Wideband.
Bestseller No. 18
M16 x 1.5 Stainless Steel 304 Female Threaded Stepped Weld Bung Metric Mounting Boss Fitting for O2...
  • Stainless Steel 304 for corrosive environments, rigid and durable body design
  • Precision CNC machined for tight, leak free performance and has polished finish appearance
  • Clean metric M16*1.5 straight thread; Threaded though whole part; Suitable for common O2 automotive and motorcycle replacement sensors
  • Use for your custom oxygen sensor install, exhaust, down pipe, headers, exchangers and other installations where weld-in or weld-on metric connection...
  • Easy to weld; Stepped double sided design with thick top head flange
Bestseller No. 19
ZBN Oxygen Sensor O2 Sensor Downstream Fits 234-4732 Compatible With Subaru Impreza Forester Legacy...

  • ▲▲▲ATTENTION: Pls carefully check part pictures, part no., fitment of Amazon & list description.Because Amazon fitment still has some error,...
  • ▲▲▲Please carefully check the connector and plug on our pictures with your old part, make sure they are same before your purchase. Because this...
  • ▲▲▲12 Months warranty. If any problem in the year quality warranty time, pls not hesitate to contact us for a free and easy replacement or...
  • ▲▲▲This Oxygen Sensor O2 Sensor Downstream Fits 234-4732 Compatible With Subaru Impreza Forester Legacy Outback Baja Impreza WRX Saab 9-2X 2.0L...
  • ▲▲▲Reference OE Number:234-4732,2344732,234 4732
Bestseller No. 20
JoyTube O2 Sensor Bung Plugs M18 x 1.5 Stainless Steel Oxygen with Hex Head Pipe Fittings (Pack of...
  • O2 Oxygen Sensor Plug M18 x 1.5 is made from 304 stainless steel.
  • O2 sensor bung plug will seal any O2 sensor or wideband air/fuel O2 sensor bung that is not being used in the exhaust system.
  • O2 sensor bung plugs create a tight seal to prevent any exhaust leaks.
  • Fits M18 x 1.5 standard thread pitch for modern O2 sensors and wideband air/fuel O2 sensors.
  • Reusable, high rusting resistance in extreme environment, capability not to deform with time.

Having trouble finding a great O2 Sensor Fitting?

This problem is well understood by us because we have gone through the entire O2 Sensor Fitting research process ourselves, which is why we have put together a comprehensive list of the best O2 Sensor Fittings available in the market today.

After hours of searching and using all the models on the market, we have found the best O2 Sensor Fitting for 2023. See our ranking below!

How Do You Buy The Best O2 Sensor Fitting?

Do you get stressed out thinking about shopping for a great O2 Sensor Fitting? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching O2 Sensor Fitting, which is why we have assembled a comprehensive list of the greatest O2 Sensor Fitting available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for O2 Sensor Fitting that you consider buying. Your questions might include the following:

  • Is it worth buying an O2 Sensor Fitting?
  • What benefits are there with buying an O2 Sensor Fitting?
  • What factors deserve consideration when shopping for an effective O2 Sensor Fitting?
  • Why is it crucial to invest in any O2 Sensor Fitting, much less the best one?
  • Which O2 Sensor Fitting are good in the current market?
  • Where can you find information like this about O2 Sensor Fitting?

We’re convinced that you likely have far more questions than just these regarding O2 Sensor Fitting, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for O2 Sensor Fitting, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible O2 Sensor Fitting. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an O2 Sensor Fitting buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available O2 Sensor Fitting currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of O2 Sensor Fitting has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an O2 Sensor Fitting?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your O2 Sensor Fitting.
  5. Customer Ratings: Number ratings grade O2 Sensor Fitting objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their O2 Sensor Fitting.
  7. Product Quality: You don’t always get what you pay for with an O2 Sensor Fitting, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an O2 Sensor Fitting is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining O2 Sensor Fitting information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding O2 Sensor Fitting is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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