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Cleans any size plug without changing grommet. Has 2-way valve (blast or air) and comes complete with abrasive powder. Ready to use.


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I should have bought this years ago! This works so well and is so reasonably priced that any all aircraft owners should buy one. The only issue I have encountered is that the grommet that you stick the plug through can spin in the containing groove, and can push thru into the housing if you arent careful. But easily worked around and it just simply works!

Kevin A
April 7, 2021

Easy to use and inexpensive device. Must have for owner of the aircraft.

Yurii K
December 18, 2019

Best $30 spent ever! Works great!

Dan W
May 25, 2019

Easy to use. Does a nice job cleaning the plugs.

February 7, 2019

Worked amazingly well - the plugs look like new

June 21, 2018

Actually I am quite impressed. I set my compressor regulator to 80psi (10 psi below max recommended), gave three short 1 - 2 second blasts with the media, then another 3 second clearing blast and the plugs came out looking very clean. I had low expectations for my carbond up and oily plugs but they came out shining with a matte aluminum color. Just be heads up that the cleaning media can get wedged between the electrode and the fingers but is very easy to get out. I thought this was going to be messy but it wasnt. 5 stars.

July 1, 2017

Works well. Cleans up the plugs just fine and even does a good job of breaking up the clinkers.

Ronald G
April 14, 2017

An inexpensive cleaner that works okay except that the rubber grommet that holds the spark plug is slightly undersized for a 18 mm spark plug. If you push the spark plug into the grommet very hard the grommet will pop out of position. You have to sort of screw the spark plug into the grommet.

July 20, 2020

Works very well. My only comment is that the rubber gasket that you insert the plug through is pretty thick. This blocks the cleaner from cleaning up most of the threads.

Pete C
July 11, 2019

Worked as I expected, was somewhat messy with some abrasive getting out as it was being used. Still it cleaned the plugs fine. Be sure to get all abrasive cleaned away before installation!

Jon M
March 5, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is the abrasive power compatible with aviation spark plugs? I read where you are not supposed to use glass beads.

The abrasive that our supplier uses is "Black Diamond", which is an industrial abrasive that does not break down as glass beads tend to do. It will clean without leaving any residue (glass dust) or build up on the plugs.

Q: Which cavity do you pour the abrasive into? The cavity next to the spark plug or the one nearest the air inlet?

The abrasive goes in the cavity closest to the air inlet.

Q: What is included in this kit? (Sand? Air fitting? other?)

The unit will have a bag of abrasive and a nipple fitting for the air inlet.

Q: What is the part # for extra abrasive?

Extra abrasive can be purchased using part number 12-00787.

Q: The grommet diameter seems too small for an aviation spark plug to fit through it. Do you have to make the grommet hole a little larger diameter for an aviation spark plug to fit through it.

It is designed as a one size fits all. Just push the sparkplug through, but it is just a rubber grommet, and can be cut if the user chooses to do so.

Q: Is it safe to use the compound that comes with the kit on Tempest finewire plugs?

No. For the fine wire plugs you will need the walnut abrasive. It will need to be set up as a special order. Please request this through one of our sales team members.

Q: What is the minimum air pressure required for the spark plug cleaner?

Requires 40 PSI

Q: Can you post instructions on how to use the cleaner?

We have added the Instructions PDF in the Documents tab on this web page.

Q: Can the black diamond abrasive be reused when collected in the bag?

The abrasive stays in the bag and you reuse it until it shows signs that it is no longer cleaning the plugs.

Q: Do you have grommet replacements for this Universal Spark Plug Cleaner?

Yes, our part number is 12-05308

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