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AEM Lambda Bung Plug

AEM

AEM Lambda Bung Plug

40+ in stock

Dispatched Monday, July 7, 2025

Block off your lambda port

To suit Bosch 4.2 and 4.9 LSU thread
Blocks off your lambda sensor hole
Compatible with AEM and Innovate wideband gauges
AEM part no. 35-4001

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AEM Lambda Bung Plug

Removed your wideband sensor? No need to make up a new section of exhaust, or have a leak, this plug will screw perfectly into place, sealing the sensor port. Also called an "O2 sensor bung plug", it is ideal for Bosch sensors, and AEM or Innovate gauge kits.

Characteristics

Manufacturer	AEM

Customer Reviews 29 customer reviews

4.7

69% (20)
28% (8)
3% (1)

Product ordered on 02/08/2023 by SEBASTIEN C.

Conforme a mes attentes
Product ordered on 14/06/2022 by Daniel & Catherine B.

Piece solide qui resistera aux hautes temperatures. D.B.
Product ordered on 27/05/2022 by Clément T.

Rien a redire tout s'est bien passe
Product ordered on 31/01/2022 by Jean Marc M.

Parfait
Product ordered on 19/04/2021 by Mathis B.

conforms to the order
Product ordered on 08/03/2021 by NICOLAS M.

compliant
Product ordered on 28/04/2020 by alain D.

Compliant shutter!
Product ordered on 07/08/2019 by Francois F.

Perfect
Product ordered on 02/08/2018 by Tristan J.

Suitable for plugging most lambda slots.
Product ordered on 27/06/2017 by guy F.

compliant
Product ordered on 26/01/2017 by Lucas d.

very good
Product ordered on 21/11/2016 by Florent W.

Good quality!
Product ordered on 31/07/2016 by manu g.

Quality part easy to assemble
Product ordered on 18/07/2016 by Philippe R.

Quality at the rendezvous
Product ordered on 28/03/2016 by Alexandre M.

Simple and effective!
Product ordered on 07/09/2015 by Loic B.

As advertised
Product ordered on 14/04/2015 by Laurent D.

it is a simple but imposing screw
Product ordered on 15/03/2015 by alain m.

short
Product ordered on 18/09/2014 by Wenceslas O.

Compliant. Ideal for wide band probe
Product ordered on 23/06/2014 by sylvain l.

No leakage with the cap, perfect compatibility with the nut.
Product ordered on 30/10/2023 by Boris P.

Que dire d'un simple bouchon ?....
Product ordered on 11/08/2020 by bernard S.

....
Product ordered on 01/07/2020 by Pascal S.

compliant but a bit expensive for what it is...
Product ordered on 20/06/2020 by bernard S.

Ok well
Product ordered on 24/02/2020 by Jacques d.

A little bit expensive but conforms
Product ordered on 03/02/2019 by anthony d.

Thank you
Product ordered on 27/01/2019 by Christian J.

Nothing to say, it's a cap as expected
Product ordered on 30/09/2015 by gilles P.

compliant
Product ordered on 20/06/2021 by Thierry P.

does the job but not very design....(plumbing style)

Customer Reviews

4.7

29 reviews

Don't Forget...

Behind the first "plug & play", programmable ECU in the 90's, the American company AEM is reknown for its high performance electronical parts. From adjustable ECUs to all sorts of gauges, wideband kits, water and methanol injection kits, dataloggers and fuel pumps, AEM offer the best solutions for the most highly tuned vehicles.