Appear to be a quality product. Time will tell.
Robert B
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
May 16, 2024
Paul R
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
March 20, 2024
Cheaper than other plugs however have had 2 failures in the last 3 years - one intermittent and one shorted.
Ed M
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
February 20, 2024
good price on plugs !
Souther F
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
January 25, 2024
Outstanding!
Morris W
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
December 5, 2023
Radio noise with EM41E plugs, these took care of that.
David S
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
December 5, 2023
Shipped quickly
Leroy W
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
October 24, 2023
My first experience with Tempest spark plugs.
Upon receiving 12 urem40E spark plugs I checked resistance in each plug, they were all in specifications (500 ohms to 2,500 ohms for new plugs).
The lowest reading was 745 ohms and the highest was 1445 ohms, most of the plugs were around 1,325 to 1,345 ohms.
The plug gaps were all within specifications (.015 to.021).
I regapped all plugs (.015 to .018) and installed them in my Cessna 172 with a Continental o300 engine and they are all working fine so far (2 hours).
The Champions I took out had about 500 hours on them and all were within resistance specifications and all were within erosion tolerances and all were serviceable spark plugs.
If the Tempest plugs match the Champions performance, I will probably stay with the Tempest plugs due to the $10 price difference per plug ($120 total savings).
Lloyd M
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
October 7, 2023
Norm P
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
September 2, 2023
Norm P
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
February 22, 2023
its a spark plug
Victor W
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
January 21, 2023
Carlton R
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
October 11, 2022
These Tempest plugs were ordered as replacements for my current plugs which are getting worn. The current batch has given me flawless service
Art H
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
February 5, 2022
So far, so good. Nicer finish than Champion.
William S
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
January 27, 2022
Great plugs
Miguel A
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
August 24, 2021
I would definitely use Tempest Aviation Spark Plugs. Performed a resistance ohms test (using a volt/ohm meter) and found all the plugs with the manufacturers limits. Checked a Champion plugs that were installed previously and found several with resistance over 5K ohms (over 5K ohms can damage magnetos and ignition wires) whereby the Tempest plugs averaged 1.2K ohms.
Herschel C
June 28, 2021
Quick delivery, good price.
Ronald L
May 5, 2021
The plugs showed up promptly. They replaced the worn-out Champion plugs in my A-65, and I’m pleased with the Tempest plugs’ performance to date.
John
March 29, 2021
Installed on Cessna 150 O-200
Travis R
March 16, 2021
1
Morandini A
January 27, 2021
Items arrived promptly, well packed and exactly what I ordered.
William B
January 21, 2021
Spark plugs were great
Jerry P
December 13, 2020
Never used Tempest plugs. Willing to give them a try based on their reputation.
H. C
November 16, 2020
Great plugs, no complaints. Only one tip, if you order these, make sure you have an extra deep well 7/8 socket. Not all deep wells are created equal. I had to go to three different hardware stores and try numerous brands before I found one that fit. If you want to be certain, a DeWalt brand deep well will work. This cost me some time on installation, so maybe Ill save you the trouble.
Marty
October 23, 2020
Great application, great price.
Easy order process.
Jon O
October 16, 2020
Great Product, Good Price, fast shipping !!
Burt S
September 30, 2020
Excellent product
Clay C
September 7, 2020
Changed out the old ones and these fired right up and the engine runs great
Jeffrey
August 17, 2020
The staff was very courteous and knowledgeable about my needs to service my plane
Luis G
July 15, 2020
Fast shipping
Mark G
July 15, 2020
prefer these plugs to the champion plugs.
Nicholas C
July 6, 2020
I am a aircraft mechanic/IA I bought these spark plugs to keep ad back up. For a dropped plug or bad plug found during inspection.
Chris M
May 24, 2020
They sell my product at their stores, But being they do I should be loyal. But like old habits!! you have to shop!!!!! But doing so !!! I found out The Co. had the best price other than a E bay , very little even their. So I guess it is faster and simple just open the book and order.. SAVE TIME AND !!! MONEY. SOME VENDERS WERE $10.00 HIGHER PR PLUG. AIRCRAFT SPRUCE IS EASY AND FAST.
Gary
May 10, 2020
Good plugs. All checked at appx 1600 ohms and we’re ready to install. Running well on my engine.
Richard C
April 30, 2020
Well. Theyre spark plugs. I dont understand why theyre so expensive, since they havent changed in over half a century, but it is what it is. ACS prices were at least as cheap as anyone elses, fast shipping, good service.
Michael V
April 16, 2020
Great price, fast shipping!!
Holly L
February 29, 2020
The Tempest plugs UREM40E are perfect for my Aeronca Champ O235 Lycoming.
Jim
February 27, 2020
Great pricing and quick delivery
Robert W
February 23, 2020
Working great ,better starts and less mag drop
Wayne
February 7, 2020
New Sparkers working perfectly. Eliminated some vibrations that the worn out plugs were introducing.
Max
January 13, 2020
Good product
John L
November 3, 2019
Arrived on time. Installed and work great. I would suggest that something be added to the description about the need for a specific socket. I regular socket does not fit
Bob R
October 11, 2019
Great product
Oly
September 29, 2019
Excellent product. Comes with gap needing to be fine tuned.
Water A
April 14, 2019
Very fast delivery. Aircraft Spruce has always been excellent. Well packed spark plugs .. shipped quickly. Ive been an occasional customer for the last 30+ years and never had a problem.
Joseph W
March 11, 2019
Robert O
February 3, 2019
I’ve always used Champion plugs, but A&P recommended I switch to Tempest. Appreciate they are more affordable and after 10 hours, they are working very well still. Hope they hold up!
Damon M
December 22, 2018
I like the quality and performance of the
Tempest Spark Plugs best. My last set were the Tempest Massive Electrodes that I switched to from the Champion Brand because of radio noise which went away with the Tempest Plugs. My current set for my
RV9A are the Tempest Fine Wire Plugs. They too are radio quiet and give great performance.
Dwight T
October 7, 2018
Tempest are good quality plugs, better than Champion according to most everyone I ask.
Robert H
June 16, 2018
I replaced my defective Champion plugs with these, and they work great.
Although I hear that Champion has fixed their resistor problems, their denial of a problem (and silence on their fix for it) have made me a Tempest fan!
Dan M
June 15, 2018
Great so far. Replaced all the top plugs in a o300 with massive and went with the fine wire on the bottom. Woke the old 172 up a little. Got rid of some stumbling.
Chad W
May 3, 2018
Rushford A
April 30, 2018
Great spark plug! I rarely have to replace these before they’re worn beyond spec. I highly recommend tempest spark plugs
Cordaro S
April 26, 2018
I replaced six lower plug on TIO 540. The plugs prior to replacement were new massive plugs, however it was prone to lead fouling after less than 10 hours of flight. I lean it aggressively but unforgiving lead has set plug #4 & #6 foul up. The fine wire in my belief is a must on larger lycoming or continental engine.
Highly recommend the fine wire plugs, price is worth it. In my opinion it will pay for itself.
I am a Tempest convert now.
Alexander L
March 25, 2018
There are 12 spark plugs x 2 engines in a Seneca. Had Champions before replacing all the plugs with these winners.
No hard starts, no fouling and they look very cool with the stainless bodies.
The bonus is lower cost to buy and better fuel economy.
William C
March 15, 2018
I like champions, however for practical rea$ons I buy Tempest,, why? They are 5 bucks cheaper.
As far as I can tell there are no practical discernible differences between the two makes. I have had champs on one magneto and Tempests on another and it made no performance difference.
It be good when we can buy straight automotive plugs, those are the be$t.
Max
February 4, 2018
Certified for and a great plug for Lycoming O360. All resistances were between 995 and 1300 ohms. Gaps checked good, no adjustments needed.
Don
November 29, 2017
Recommended. They work like theyre supposed too. Air tight packages also.
Jeffery C
November 6, 2017
We use these plugs in our Pratt and Whitney R1340 engines and have very good luck with them. I highly recommend them to anyone.
Noe A
August 11, 2017
Good Buy
Charles S
July 21, 2017
I always buy Tempest spark plugs.
Nickel coating, resistors that are superior and at competitive priceing
I WILL consider any Tempest product before others..
Keith P
July 20, 2017
Thanks for the great service. The Tempest plugs arrived on time and as advertised.
Im pleased not only with their performance but also with their polished appearance which makes the engine look great.
Jim C
July 8, 2017
They have been lasting well over 600 hours in our club with no issues.
Paul
February 17, 2017
Seems like a more substantial, better plug than the Champions they replaced. Had 12 Champions in my O300. At annual, found seven that failed a resistance check after only 200 hours in the engine. A&P was not surprised and recommend I buy the Tempest. Purchased these, they all passed the check (as they should being brand new). Installed easily and engine is running great.
Nick
November 13, 2016
I've had fine where plugs in my Grumman Cheetah 0320 for about two years, they really work well and I always get the same mag drop with the upper or lower plugs. While they work perfectly, the exterior of the plugs corroded excessively. I mentioned this to Brian Cox at the Tempest booth at Sun n fun, he said for a short while they had an issue with their plating vendor. I sent him some pictures and the date codes, and I just received a completely new set of plugs! This type of customer service is remarkable-I will remain a staunch Tempest customer.
Dennis D
May 7, 2015
Paul R
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
March 18, 2024
One of the 8 plugs that I purchased was would not function on the aircraft and failed a function test. It was returned to Aircraft Spruce and it took 3 months to receive a replacement. This is the VERY FIRST time that I have ever had a problem with Tempest Aviation Spark Plugs. I certainly will continue to used Tempest plugs exclusively. I just wish that the replacement was more timely.
Lynn W
August 7, 2020
Just went up about 2 bucks again quietly :/, went to auto zone for socket to fit these, found a deep 7/8 socket for oxygen fitting with split down the middle for about $13.00 that fits perfect.
Phil S
August 3, 2019
Nice Spark Plugs bought with new Kelly Harness My birds starting quicker and running smoother now. The Fit and Finish of these nickel plated plugs is very good.
Dwb
August 6, 2018
great spark plugs but too expensive. Also, I wish there was a better and inexpensive way to figure out the spark plugs condition etc...
Max
June 2, 2018
Good value for money
Jan H
April 26, 2018
Plane runs well so far. Had to regap a few plugs out of the box. Quality control by Tempest?? Lost confidence in Champion after their spark plug resistance issue and magneto point redesign. Hopefully Tempest wont go the same way with their quality control.
Steve
December 13, 2017
Nice product, better than champions, but. Flats on the plug body are lower than the champions profile and it took me to three different sources before I found a 7/8 inch socket that would fit the plugs . Hint:: Stick with the standard plug profile.
John S
June 5, 2019
performs as advertised.
J. C
March 31, 2017
11 of the 12 plugs had scratches / gouges in the ceramic insulator where the lead goes in.
Lee
October 2, 2017