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⚠️ Please allow 4–5 business days for order fulfillment as we work to catch up on orders received during our weeklong closure. ⚠️
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Bungs - AN, NPT, O2 Sensor Bungs

We offer a wide range of weld-on threaded bungs in common sizing standards like Male AN, Female AN, Male NPT, Female NPT, and Metric, suitable for automotive, marine, industrial, and other applications. Our bungs are precision-machined from solid Aluminum, Mild Steel, Stainless Steel, or Titanium bar stock and are cleaned... Read More
M12 x 1.25 O2 Sensor Bung - Saddled for 1.500"-2.500" OD Tube - 304 Stainless - Ace Race Parts

M12 x 1.25 O2 Sensor Bung - Coped for 1.500"-2.500" OD Tube - 304 Stainless

SKU 26021
$ 5.95 - $ 5.95
$ 5.95
$ 5.95 - $ 5.95
$ 5.95
25+ in stock

304 STAINLESS STEEL O2 SENSOR BUNG — M12 X 1.25 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using soli...

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M18 x 1.5 O2 Sensor Bung - Saddled for 3.000"-5.000" OD Tube - CP2 Titanium - Ace Race Parts

M18 x 1.5 O2 Sensor Bung - Saddled for 1.500"-2.500" OD Tube - 304 Stainless

SKU 26002
$ 5.95 - $ 5.95
$ 5.95
$ 5.95 - $ 5.95
$ 5.95
Only 13 left!

304 STAINLESS STEEL O2 SENSOR BUNG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid...

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M18 x 1.5 O2 Sensor Bung - Saddled for 3.000"-5.000" OD Tube - 304 Stainless - Ace Race Parts

M18 x 1.5 O2 Sensor Bung - Coped for 3.000"-5.000" OD Tube - 304 Stainless

SKU 26020
$ 5.95 - $ 5.95
$ 5.95
$ 5.95 - $ 5.95
$ 5.95
25+ in stock

304 STAINLESS STEEL O2 SENSOR BUNG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid...

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M18 x 1.5 O2 Sensor Bung - Saddled for 1.500"-2.500" OD Tube - Titanium - Ace Race Parts

M18 x 1.5 O2 Sensor Bung - Coped for 1.500"-2.500" OD Tube - Mild Steel

SKU 26025
$ 2.95 - $ 2.95
$ 2.95
$ 2.95 - $ 2.95
$ 2.95
25+ in stock

1018 MILD STEEL O2 SENSOR BUNG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid 101...

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Stainless O2 Bung - M18 x 1.5 | Ace Race Parts

M18 x 1.5 O2 Sensor Bung - Stepped (Flat Bottom) - 304 Stainless

SKU 26001
$ 5.95 - $ 5.95
$ 5.95
$ 5.95 - $ 5.95
$ 5.95
25+ in stock

304 STAINLESS STEEL O2 SENSOR BUNG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid...

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M18 x 1.5 O2 Sensor Bung - Stepped (Flat Bottom) - Mild Steel - Ace Race Parts

M18 x 1.5 O2 Sensor Bung - Stepped (Flat Bottom) - Mild Steel

SKU 26003
$ 2.00 - $ 2.00
$ 2.00
$ 2.00 - $ 2.00
$ 2.00
25+ in stock

MILD STEEL O2 SENSOR BUNG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid 1018 Mil...

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M18 x 1.5 O2 Sensor Bung - Heat Sink Style - 304 Stainless

SKU 26024
$ 9.95 - $ 9.95
$ 9.95
$ 9.95 - $ 9.95
$ 9.95
25+ in stock

EXTEND THE LIFE OF YOUR WIDEBAND O2 SENSOR! Our O2 Sensor Heat Sink Bungs are precision machined using solid 304 Stainless Steel bar stock and work...

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M18 x 1.5 O2 Sensor Bung 45° Angle Cut - 304 Stainless - Ace Race Parts

M18 x 1.5 O2 Sensor Bung 45° Angle Cut - 304 Stainless

SKU 26007
$ 5.95 - $ 5.95
$ 5.95
$ 5.95 - $ 5.95
$ 5.95
25+ in stock

The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs are precision machined using solid 304 Stainless Steel bar stock and work with all stan...

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M12 x 1.25 O2 Sensor Bung Plug - Mild Steel - Ace Race Parts

M12 x 1.25 O2 Sensor Bung Plug - Mild Steel

SKU 26023
$ 2.50 - $ 2.50
$ 2.50
$ 2.50 - $ 2.50
$ 2.50
25+ in stock

The Ace Race Parts brand of metric Oxygen (O2) Sensor Bung Plugs are precision machined using 1018 Mild Steel and work with all standard O2 Sensor ...

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M18 x 1.5 O2 Sensor Bung Plug - Mild Steel - Ace Race Parts

M18 x 1.5 O2 Sensor Bung Plug - Mild Steel

SKU 26004
$ 2.50 - $ 2.50
$ 2.50
$ 2.50 - $ 2.50
$ 2.50
25+ in stock

The Ace Race Parts brand of metric Oxygen (O2) Sensor Bung Plugs are precision machined using 1018 Mild Steel and work with all standard O2 Sensor ...

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M12 x 1.25 O2 Sensor Bung - Saddled for 1.500"-2.500" OD Tube - 304 Stainless - Ace Race Parts

M12 x 1.25 O2 Sensor Bung - Coped for 1.500"-2.500" OD Tube - 6AL4V Grade 5 Titanium

SKU 74003
$ 19.95 - $ 19.95
$ 19.95
$ 19.95 - $ 19.95
$ 19.95
25+ in stock

6AL4V GRADE 5 TITANIUM O2 SENSOR BUNG — M12 X 1.25 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using s...

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M18 x 1.5 O2 Sensor Bung - Saddled for 1.500"-2.500" OD Tube - Titanium - Ace Race Parts
Sold out

M18 x 1.5 O2 Sensor Bung - Coped for 1.500"-2.500" OD Tube - CP2 Titanium

SKU 74001
$ 14.00 - $ 14.00
$ 14.00
$ 14.00 - $ 14.00
$ 14.00
More on the way!

CP2 TITANIUM O2 SENSOR BUNG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid CP2 Ti...

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M18 x 1.5 O2 Sensor Bung - Saddled for 3.000"-5.000" OD Tube - CP2 Titanium - Ace Race Parts

M18 x 1.5 O2 Sensor Bung - Coped for 3.000"-5.000" OD Tube - CP2 Titanium

SKU 74002
$ 14.00 - $ 14.00
$ 14.00
$ 14.00 - $ 14.00
$ 14.00
25+ in stock

CP2 TITANIUM O2 SENSOR BUNG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid CP2 Ti...

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M18 x 1.5 O2 Sensor Bung - Heat Sink Style - 6AL4V Grade 5 Titanium

SKU 74004
$ 22.95 - $ 22.95
$ 22.95
$ 22.95 - $ 22.95
$ 22.95
25+ in stock

EXTEND THE LIFE OF YOUR WIDEBAND O2 SENSOR! Our O2 Sensor Heat Sink Bungs are precision machined using solid 6AL-4V Grade 5 Titanium bar stock and ...

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Vibrant "J" Style Oxygen Sensor Weld On Bung 304 Stainless - Ace Race Parts

Vibrant "J" Style M18 x 1.5 Oxygen Sensor Weld On Bung 304 Stainless (1192)

SKU VIB1192
$ 32.50 - $ 32.50
$ 32.50
$ 32.50 - $ 32.50
$ 32.50
Only 4 left!

• A very effective tool for avoiding Check Engine Lights. Pulls the Oxygen Sensor further away from the exhaust gas stream.• The "J" shape allows t...

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M12 x 1.25 O2 Sensor Bung Plug - 6AL4V Grade 5 Titanium

M12 x 1.25 O2 Sensor Bung Plug - 6AL4V Grade 5 Titanium

SKU 74007
$ 15.95 - $ 15.95
$ 15.95
$ 15.95 - $ 15.95
$ 15.95
25+ in stock

6AL4V GRADE 5 TITANIUM O2 SENSOR BUNG PLUG — M12 X 1.25 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bung Plugs is precision machin...

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M18 x 1.5 O2 Sensor Bung Plug - 6AL4V Grade 5 Titanium

M18 x 1.5 O2 Sensor Bung Plug - 6AL4V Grade 5 Titanium

SKU 74006
$ 15.95 - $ 15.95
$ 15.95
$ 15.95 - $ 15.95
$ 15.95
Only 12 left!

6AL4V GRADE 5 TITANIUM O2 SENSOR BUNG PLUG — M18 X 1.5 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bung Plugs is precision machine...

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M18 x 1.5 O2 Sensor Bung - Saddle Style - CP2 Titanium

M18 x 1.5 O2 Sensor Bung - Saddle Style - CP2 Titanium

SKU 74005
$ 34.95 - $ 34.95
$ 34.95
$ 34.95 - $ 34.95
$ 34.95
Only 13 left!

CP2 TITANIUM O2 SENSOR BUNG — M18 X 1.5 THREAD — SADDLE STYLE The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined usi...

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