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⚠️ Due to high order volume, please allow 2-3 business days for order processing. Expedited orders (UPS Next Day, 2-Day, and 3-Day) will ship the same day if received before 12:00 PM Pacific Time. Thank you for your patience and understanding. ⚠️
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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
-4AN Female Weld Bung - 304 Stainless

-4AN Female Weld Bung - 304 Stainless

SKU 26060
$ 10.75 - $ 10.75
$ 10.75
$ 10.75
$ 10.75
25+ in stock

The Ace Race Parts brand of -4AN Female ORB AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a stepped design for adde...

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-4AN Male Weld Bung - 304 Stainless

-4AN Male Weld Bung - 304 Stainless

SKU 26050
$ 10.75 - $ 10.75
$ 10.75
$ 10.75
$ 10.75
25+ in stock

The Ace Race Parts brand of -4AN Male AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a 37° flared sealing connection...

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-6AN Male Weld Bung - 304 Stainless

-6AN Male Weld Bung - 304 Stainless

SKU 26051
$ 10.75 - $ 10.75
$ 10.75
$ 10.75
$ 10.75
25+ in stock

The Ace Race Parts brand of -6AN Male AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a 37° flared sealing connection...

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-8AN Male Weld Bung - 304 Stainless

-8AN Male Weld Bung - 304 Stainless

SKU 26052
$ 11.75 - $ 11.75
$ 11.75
$ 11.75
$ 11.75
25+ in stock

The Ace Race Parts brand of -8AN Male AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a 37° flared sealing connection...

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-10AN Male Weld Bung - 304 Stainless
Sold out

-10AN Male Weld Bung - 304 Stainless

SKU 26053
$ 12.75 - $ 12.75
$ 12.75
$ 12.75
$ 12.75
Out of stock

The Ace Race Parts brand of -10AN Male AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a 37° flared sealing connectio...

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-12AN Male Weld Bung - 304 Stainless

-12AN Male Weld Bung - 304 Stainless

SKU 26054
$ 18.00 - $ 18.00
$ 18.00
$ 18.00
$ 18.00
25+ in stock

The Ace Race Parts brand of -12AN Male AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a 37° flared sealing connectio...

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-16AN Male Weld Bung - 304 Stainless

-16AN Male Weld Bung - 304 Stainless

SKU 26055
$ 22.00 - $ 22.00
$ 22.00
$ 22.00
$ 22.00
25+ in stock

The Ace Race Parts brand of -16AN Male AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a 37° flared sealing connectio...

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-20AN Male Weld Bung - 304 Stainless

-20AN Male Weld Bung - 304 Stainless

SKU 26056
$ 32.00 - $ 32.00
$ 32.00
$ 32.00
$ 32.00
25+ in stock

The Ace Race Parts brand of -20AN Male AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a 37° flared sealing connectio...

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-6AN Female Weld Bung - 304 Stainless

-6AN Female Weld Bung - 304 Stainless

SKU 26061
$ 10.75 - $ 10.75
$ 10.75
$ 10.75
$ 10.75
25+ in stock

The Ace Race Parts brand of -6AN Female ORB AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a stepped design for adde...

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-8AN Female Weld Bung - 304 Stainless

-8AN Female Weld Bung - 304 Stainless

SKU 26062
$ 11.75 - $ 11.75
$ 11.75
$ 11.75
$ 11.75
25+ in stock

The Ace Race Parts brand of -8AN Female ORB AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a stepped design for adde...

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-10AN Female Weld Bung - 304 Stainless

-10AN Female Weld Bung - 304 Stainless

SKU 26063
$ 12.75 - $ 12.75
$ 12.75
$ 12.75
$ 12.75
25+ in stock

The Ace Race Parts brand of -10AN Female ORB AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a stepped design for add...

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-12AN Female Weld Bung - 304 Stainless

-12AN Female Weld Bung - 304 Stainless

SKU 26064
$ 14.75 - $ 14.75
$ 14.75
$ 14.75
$ 14.75
25+ in stock

The Ace Race Parts brand of -12AN Female ORB AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a stepped design for add...

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-16AN Female Weld Bung - 304 Stainless

-16AN Female Weld Bung - 304 Stainless

SKU 26065
$ 18.75 - $ 18.75
$ 18.75
$ 18.75
$ 18.75
25+ in stock

The Ace Race Parts brand of -16AN Female ORB AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a stepped design for add...

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-20AN Female Weld Bung - 304 Stainless

-20AN Female Weld Bung - 304 Stainless

SKU 26066
$ 23.75 - $ 23.75
$ 23.75
$ 23.75
$ 23.75
25+ in stock

The Ace Race Parts brand of -20AN Female ORB AN Weld Bungs are precision CNC machined from 304 Stainless Steel and feature a stepped design for add...

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1/8" NPT Threaded Half Coupling 304 Stainless - Ace Race Parts

1/8" NPT Female Weld Bung - 304 Stainless

SKU 26009
$ 6.95 - $ 6.95
$ 6.95
$ 6.95
$ 6.95
25+ in stock

The Ace Race Parts brand of NPT Weld Bungs are available in size ranges from 1/8" NPT to 3/4" NPT and are an affordable option for applications tha...

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1/4" NPT Threaded Half Coupling 304 Stainless - Ace Race Parts

1/4" NPT Female Weld Bung - 304 Stainless

SKU 26010
$ 7.50 - $ 7.50
$ 7.50
$ 7.50
$ 7.50
25+ in stock

The Ace Race Parts brand of NPT Weld Bungs are available in size ranges from 1/8" NPT to 3/4" NPT and are an affordable option for applications tha...

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3/8" NPT Threaded Half Coupling 304 Stainless - Ace Race Parts

3/8" NPT Female Weld Bung - 304 Stainless

SKU 26011
$ 7.75 - $ 7.75
$ 7.75
$ 7.75
$ 7.75
25+ in stock

The Ace Race Parts brand of NPT Weld Bungs are available in size ranges from 1/8" NPT to 3/4" NPT and are an affordable option for applications tha...

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1/2" NPT Threaded Half Coupling 304 Stainless - Ace Race Parts

1/2" NPT Female Weld Bung - 304 Stainless

SKU 26012
$ 8.95 - $ 8.95
$ 8.95
$ 8.95
$ 8.95
25+ in stock

The Ace Race Parts brand of NPT Weld Bungs are available in size ranges from 1/8" NPT to 3/4" NPT and are an affordable option for applications tha...

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3/4" NPT Threaded Half Coupling 304 Stainless - Ace Race Parts

3/4" NPT Female Weld Bung - 304 Stainless

SKU 26013
$ 9.95 - $ 9.95
$ 9.95
$ 9.95
$ 9.95
25+ in stock

The Ace Race Parts brand of NPT Weld Bungs are available in size ranges from 1/8" NPT to 3/4" NPT and are an affordable option for applications tha...

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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 - 304 Stainless

SKU 26021
$ 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
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 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
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
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
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 - Heat Sink Style - 304 Stainless

SKU 26024
$ 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
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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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
$ 28.99 - $ 28.99
$ 28.99
$ 28.99
$ 28.99
Only 5 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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