Very expensive for what it is, but when you need it what else can you do? Well made, very light, good quality.
Thomas S
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Andair Tacho Cap-Lycoming Engine Plug
August 19, 2025
 
 Well made product. Exactly what I needed 
Kevin E
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Andair Tacho Cap-Lycoming Engine Plug
July 3, 2025
 
fine
Ennyx, L
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Andair Tacho Cap-Lycoming Engine Plug
June 11, 2025
 
Excellent for what it is.  Bit pricey, but works well
Gkc A
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Andair Tacho Cap-Lycoming Engine Plug
September 26, 2024
 
Works well to cover the hole there the mechanical tach cable was when I went to a digital tach
James D
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Andair Tacho Cap-Lycoming Engine Plug
February 22, 2024
 
Fits like it should 
Luke H
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Andair Tacho Cap-Lycoming Engine Plug
February 5, 2023
 
High quality but this cap should only cost $5. If I wasn’t installing a new engine I would have used a standard plastic cap. The safety hole wires are nice.
John S
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Andair Tacho Cap-Lycoming Engine Plug
January 11, 2023
 
Over priced rip off
Steve L
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Andair Tacho Cap-Lycoming Engine Plug
October 11, 2022
 
Worked perfect for Lycoming IO540, just wanted I needed to cover the tach port since I will be using Emag pickup.
Thaddeus B
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Andair Tacho Cap-Lycoming Engine Plug
September 3, 2022
 
The plug is top quality. I have bought other Andair products before, the company makes excellent products. 
Carsten S
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Andair Tacho Cap-Lycoming Engine Plug
December 28, 2021
 
Century A
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Andair Tacho Cap-Lycoming Engine Plug
December 3, 2021
 
Transportation L
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Andair Tacho Cap-Lycoming Engine Plug
October 23, 2021
 
James V
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Andair Tacho Cap-Lycoming Engine Plug
September 24, 2021
 
High quality component from Andair. 
Ron G
March 26, 2021
 
Fit perfectly on my O-200-A tach and was able to be safety wire. However, this part is extremely overpriced ($32.50 as of the day I bought it).
Jacob B
March 25, 2021
 
Clean, safe solution.  
William R
January 22, 2021
 
Fit a Continental IO-520 perfectly.
John T
January 19, 2021
 
Fits perfectly.  Worth the wait.
Dan H
September 24, 2020
 
Fits perfect for my Lyoming IO-360 B1F 
Schaerer C
July 17, 2020
 
Very nice piece.  It seems pricy, but you have to consider its a low volume production...
David V
April 6, 2020
 
Waaay too expensive. I think youre taking advantage of being one of the few people who carry this item.
Thomas N
December 21, 2019
 
      Great cap, easy to install and lots of holes for safety wire. 
Daniel L
March 25, 2019
 
We installed an Electronics International tachometer in a plane that we are rebuilding.  We wanted to be certain that dirt couldnt enter through the now unused flex-cable drive so we ordered one of these caps.  It is beautifully made and fits great.  The only surprise was that EI provides a cap for this purpose.  It isnt nearly as nice but would have done the job.
Terry M
February 11, 2019
 
      The one we received was made from anodized aluminum. Very nicely manufactured and finished.
Airborne A
September 3, 2018
 
This item is perfect for covering tach sensor opening. However based on the price, I was surprised to find it made of plastic. 
Grant S
April 25, 2020
 
The grip section for the wrench is small
Chris D
November 5, 2019
 
This Item works fine, but honestly,  too expensive!
Thomas N
October 20, 2019
 
      Item arrived and was as advertised.  Good quality and the AS price was the best I could find, and the part/pricing WAS hard to find - everywhere but here at AS.  That said, this is a simple part and should not cost $20.00.  
Jeff D
February 2, 2019
 
Good news: Nice clean way to seal off that tach drive boss on a Lycoming when you are not using it to drive your tachometer. Bad news: its quite expensive for a plastic molded part! It does have an o-ring seal in it to prevent oil leakage and lots of holes to safety-wire it.    
David 
July 31, 2018
 
      $47.50 for 1 cap? $47.50 plus HST and shipping......... Absurd pricing. Fits well but gouging should be illegal!
Paul 
September 1, 2020
 
The product is as advertised and does the job.  If it was $6.00 instead of $32.00 it would earn 5 stars.
Lou P
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Andair Tacho Cap-Lycoming Engine Plug
January 11, 2022