What size thread are GM O2 sensors?
GM O2 sensors typically use a 12mm x 1.25 thread size. This is a common thread size for oxygen sensors used in many automotive applications, including General Motors vehicles.
Detailed Explanation
Oxygen sensors, also known as O2 sensors, are critical components in the exhaust systems of modern vehicles. They monitor the air-fuel ratio in the engine's exhaust and provide feedback to the vehicle's engine control unit (ECU) to optimize combustion and emissions. GM, like other automakers, uses standardized thread sizes for their O2 sensors to ensure a secure and reliable connection.
The thread size for GM O2 sensors is typically 12mm x 1.25. This means the sensor has a diameter of 12 millimeters and a thread pitch of 1.25 millimeters per thread. This thread size is common across the automotive industry and is used by many manufacturers for their oxygen sensor applications.
Why Thread Size Matters
The thread size of an O2 sensor is important for several reasons:
- Secure Fit: The threaded connection ensures a tight, secure fit between the sensor and the exhaust system, preventing leaks and maintaining proper sensor positioning.
- Compatibility: Using the correct thread size ensures the O2 sensor will properly interface with the vehicle's exhaust system, allowing for accurate readings and proper engine management.
- Ease of Installation: The standardized thread size makes it easier for mechanics and technicians to replace O2 sensors, as the replacement part will fit the existing threaded hole in the exhaust system.
Knowing the correct thread size for GM O2 sensors is essential when replacing these components to ensure a proper fit and optimal engine performance.
Should I put anti-seize on an O2 sensor?
Treat the threads of the new oxygen sensor by applying an even layer of anti-seize lubricant (FIGURE 3). Walker sensors include this component to insure a quality installation. Do not let the anti-seize come in contact with the head of the sensor.
Are all O2 sensors 22mm?
Usually o2 sensors are 7/8 or 22mm, they are very close to the same size.
What is the most common O2 sensor size?
22mm
7/8ths is the Imperial equivalent of decimal 22mm. O2 sensors are all pretty much standard in size.
What size thread is my O2 sensor?
It's 18 mm thread like the larger spark plug thread size.
What is the thread size on a GM oxygen sensor?
M18 X 1.5
The oxygen sensor thread size is M18 X 1.5. There is a special tool for O2 sensors thread restore purposes. Check out this LINK . Let me know if you need more assistance.
Are all 02 sensors the same thread?
There is no overall standard here although M18x1. 5 appears to be relatively common. I recommend that you pick the O2 sensor you intend to use for this application and then weld on the bung for that particular model.
Do you put anything on oxygen sensor threads?
Treat the threads of the new oxygen sensor by applying an even layer of anti-seize lubricant (FIGURE 3). Walker sensors include this component to insure a quality installation.
What size is an O2 sensor tap?
Most O2 sensor bungs are M18-1.5. Thanks for that, that's brilliant. ten dollar, sorry to hear yuo had problems, i can sympathise as i did mine last weekend and had to heat the cat up to get the little blighter out!
What size thread is the GM intake air temperature sensor?
3/8" -
Thread Size: 3/8" - 18 NPTF.
Should I put anti seize on O2 sensor threads?
Treat the threads of the new oxygen sensor by applying an even layer of anti-seize lubricant (FIGURE 3). Walker sensors include this component to insure a quality installation. Do not let the anti-seize come in contact with the head of the sensor.
