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Oxygen Sensor Weld Bungs and Fittings

Most oxygen sensors use a standard 18x1.5mm thread pitch. Our weld bungs and fittings all have this thread. We also offer a Thread Repair Kit in the proper size (Part No. 3870-18x1.5) to repair stripped threads.

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Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled

Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled

This 45 degree angle Oxygen Sensor Weld Bung allows you to have the oxygen sensor angled into the exhaust pipe instead of perpendicular which may reduce back-pressure and increase performance.

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Part No.
Description
Price
Status
Mild Steel Weld Fitting for O2 Sensor, 1/2" Reach w/Plug

3878-3735 

Mild Steel Weld Fitting for O2 Sensor, 1/2" Reach w/Plug

$11.49In Stock
Mild Steel Weld Bung for O2 Sensor, 1" Reach w/Plug

3878-3764 

Mild Steel Weld Bung for O2 Sensor, 1" Reach w/Plug

$11.49In Stock
Stainless Weld Bung for O2 Sensor, 1 Inch Long with Plug

3878-3838 

Stainless Weld Bung for O2 Sensor, 1 Inch Long with Plug

$11.49In Stock
Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled

3228-127 

Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled

 
5.0
$10.99In Stock
Stainless Weld Bung for O2 Sensor, 18 x 1.5mm

AF991SS 

Stainless Weld Bung for O2 Sensor, 18 x 1.5mm

$10.99In Stock
Innovate HBX-1 Heat Sink O2 Sensor Bung Extender

3878-3729 

Innovate HBX-1 Heat Sink O2 Sensor Bung Extender

$99.99In Stock
K&N Mild Steel Oxygen Sensor Blanking Plug, 18 x 1.5mm

3884 

K&N Mild Steel Oxygen Sensor Blanking Plug, 18 x 1.5mm

$28.99In Stock
Stainless O2 Sensor Blanking Plug, 18 x 1.5mm

AF992SS 

Stainless O2 Sensor Blanking Plug, 18 x 1.5mm

 
5.0
$11.99In Stock
Optional Tailpipe Clamp Mount for Oxygen Sensor

3877-CLAMP 

Optional Tailpipe Clamp Mount for Oxygen Sensor

$93.99In Stock