My champion plugs are fouling and their resistance is all over the place. Going to try Tempest. Better price and supposed better quality and consistency.
Theodore C
Verified Purchase
Tempest Plug UREM40E 12 Pack
September 24, 2024
Nice packaging and all 8 were gapped perfectly right out of the box.
Brooks M
Verified Purchase
Tempest Spark Plug UREM40E
September 10, 2024
good item and good price.
Ray H
Verified Purchase
Tempest Spark Plug UREM40E
August 23, 2024
these are the spark plug of chioce for me I have used them in my Mooney and now my Aztec F.
Guy G
Verified Purchase
Tempest Spark Plug UREM40E
August 21, 2024
David
Verified Purchase
Tempest Spark Plug UREM40E
August 14, 2024
Right part for the job!
Clay C
Verified Purchase
Tempest Spark Plug UREM40E
July 26, 2024
Tempest spark plugs . You just can’t beat them.
Great help from Aircraft Spruce.
Andrews A
Verified Purchase
Tempest Spark Plug UREM40E
July 3, 2024
These seem to be good so far.
Jack H
Verified Purchase
Tempest Plug UREM40E 12 Pack
June 18, 2024
Nice product at a good price.
James V
Verified Purchase
Tempest Spark Plug UREM40E
June 8, 2024
Very Sparky.
Eric W
Verified Purchase
Tempest Spark Plug UREM40E
May 18, 2024
Appear to be a quality product. Time will tell.
Robert B
Verified Purchase
Tempest Plug UREM40E 12 Pack
May 16, 2024
Parfait
Gilles C
Verified Purchase
Tempest Spark Plug UREM40E
March 27, 2024
Arrived promptly in excellent packaging and in good condition. Installed and are performing properly.
Simcoe A
Verified Purchase
Tempest Spark Plug UREM40E
March 27, 2024
Paul R
Verified Purchase
Tempest Plug UREM40E 12 Pack
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 Pack
February 20, 2024
great plugs
Souther F
Verified Purchase
Tempest Spark Plug UREM40E
January 25, 2024
good price on plugs !
Souther F
Verified Purchase
Tempest Plug UREM40E 12 Pack
January 25, 2024
Great
Lawrence O
Verified Purchase
Tempest Spark Plug UREM40E
January 24, 2024
Better price and are running smooth.
Thomas M
Verified Purchase
Tempest Spark Plug UREM40E
December 14, 2023
Resistance readings for each plug are amazingly consistent.
William J
Verified Purchase
Tempest Spark Plug UREM40E
December 12, 2023
Outstanding!
Morris W
Verified Purchase
Tempest Plug UREM40E 12 Pack
December 5, 2023
Radio noise with EM41E plugs, these took care of that.
David S
Verified Purchase
Tempest Plug UREM40E 12 Pack
December 5, 2023
Work perfectly.would buy again
Jeff H
Verified Purchase
Tempest Spark Plug UREM40E
November 30, 2023
so far so good. They look beautiful. Will be running in a week.
St J
Verified Purchase
Tempest Spark Plug UREM40E
October 27, 2023
Shipped quickly
Leroy W
Verified Purchase
Tempest Plug UREM40E 12 Pack
October 24, 2023
Tempest Spark plugs are ok in my book!
$10 less per plug than Champion is a substantial savings as well!
Lloyd M
Verified Purchase
Tempest Spark Plug UREM40E
October 19, 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 Pack
October 7, 2023
Great product and service from Spruce! . Made a huge ruin performance. Plane runs smoothly. I replaced REM38E with theses Tempest UTEM40E. CHT doesn’t run hotter like I was concern. Much cheaper the the Champion and does exactly same thing. You pay Champion extra for the bran name.
Romeo T
Verified Purchase
Tempest Spark Plug UREM40E
September 20, 2023
Economical and good,replacement for Champion REM40E
Abbas N
Verified Purchase
Tempest Spark Plug UREM40E
September 15, 2023
Norm P
Verified Purchase
Tempest Plug UREM40E 12 Pack
September 2, 2023
Solid performer
Flying M
Verified Purchase
Tempest Spark Plug UREM40E
August 9, 2023
Arrived quickly and work as expected.
Dana P
Verified Purchase
Tempest Spark Plug UREM40E
August 4, 2023
Plugs worked like a charm and very prompt delivery. You guys are awesome!
William A
Verified Purchase
Tempest Spark Plug UREM40E
August 2, 2023
White B
Verified Purchase
Tempest Spark Plug UREM40E
June 21, 2023
Great product !
James L
Verified Purchase
Tempest Spark Plug UREM40E
June 7, 2023
Made the right choice
Glenn F
Verified Purchase
Tempest Spark Plug UREM40E
June 7, 2023
5 star
Robert L
Verified Purchase
Tempest Spark Plug UREM40E
May 10, 2023
First time buyer , so will see
Jim K
Verified Purchase
Tempest Spark Plug UREM40E
April 25, 2023
First time buyer , so will see
Jim K
Verified Purchase
Tempest Spark Plug UREM40E
April 25, 2023
Norm P
Verified Purchase
Tempest Plug UREM40E 12 Pack
February 22, 2023
I purchased 4. One was defective. It did not produce an effective spark under pressure. Tempest and Aircraft Spruce were excellent and provided a credit. My O-300 runs nice and smooth now.
Aquila F
Verified Purchase
Tempest Spark Plug UREM40E
January 28, 2023
its a spark plug
Victor W
Verified Purchase
Tempest Plug UREM40E 12 Pack
January 21, 2023
Worked perfect, pre gapped and with a copper washer makes it even easier. Put into PA-28-140
Brendan S
Verified Purchase
Tempest Spark Plug UREM40E
January 11, 2023
Plugs shipped the day they were ordered. Installed and working great!
Timothy H
Verified Purchase
Tempest Spark Plug UREM40E
December 17, 2022
Brian C
Verified Purchase
Tempest Spark Plug UREM40E
December 1, 2022
Richard S
Verified Purchase
Tempest Spark Plug UREM40E
November 30, 2022
Replaced a bad plug. Works as required
Michael G
Verified Purchase
Tempest Spark Plug UREM40E
November 29, 2022
like these better than champion
Jason B
Verified Purchase
Tempest Spark Plug UREM40E
November 23, 2022
It works
Tracey M
Verified Purchase
Tempest Spark Plug UREM40E
October 18, 2022
Carlton R
Verified Purchase
Tempest Plug UREM40E 12 Pack
October 11, 2022
They spark great, I feel fortunate to have gotten them.
William S
Verified Purchase
Tempest Spark Plug UREM40E
September 24, 2022
A good, basic, hard to find at the moment product essential for every engine. Buy some to have in stock due to shortage and supply line issues.
Peg B
Verified Purchase
Tempest Spark Plug UREM40E
May 31, 2022
Very good spark plugs, been installing them for years now
Carrizozo A
Verified Purchase
Tempest Spark Plug UREM40E
April 12, 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 Pack
February 5, 2022
So far, so good. Nicer finish than Champion.
William S
Verified Purchase
Tempest Plug UREM40E 12 Pack
January 27, 2022
Great product with good pricing.
Washington P
Verified Purchase
Tempest Spark Plug UREM40E
December 16, 2021
One spark plug was unusable out of the package. The threads were distorted.
A&p S
Verified Purchase
Tempest Spark Plug UREM40E
October 21, 2021
Tempest sparkplugs are the best. Great pricing. Thanks
Chadwick L
Verified Purchase
Tempest Spark Plug UREM40E
October 20, 2021
Great product
Chadwick L
Verified Purchase
Tempest Spark Plug UREM40E
October 2, 2021
Product performed as expected.
George W
Verified Purchase
Tempest Spark Plug UREM40E
September 29, 2021
Ronnie D
Verified Purchase
Tempest Spark Plug UREM40E
September 19, 2021
They seem better than the champion plugs that were replaced
Glen D
Verified Purchase
Tempest Spark Plug UREM40E
September 4, 2021
seem great so far, engine started right up and ran smooth
Penny M
Verified Purchase
Tempest Spark Plug UREM40E
August 24, 2021
Great plugs
Miguel A
Verified Purchase
Tempest Plug UREM40E 12 Pack
August 24, 2021
Have used many boxes of these over the years they work great.
Carrizozo A
Verified Purchase
Tempest Spark Plug UREM40E
August 14, 2021
Harold Q
Verified Purchase
Tempest Spark Plug UREM40E
July 14, 2021
My plane became hard to start and skipped occasionally. At first, I thought it might be my mags, but decided to try a new set of Tempest plugs first. Wow! What a difference. Now, she starts easily and purrs like a kitten :-)
D. R
Verified Purchase
Tempest Spark Plug UREM40E
July 9, 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
Tempest are good quality plugs, better than Champion according to most everyone I ask.
Robert H
June 16, 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
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
Recommended. They work like theyre supposed too. Air tight packages also.
Jeffery C
November 6, 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
Donald D
Verified Purchase
Tempest Spark Plug UREM40E
October 25, 2024
Very good spark plug. One problem is that the outer surface will develope surface corrosion.
Oliver J
Verified Purchase
Tempest Spark Plug UREM40E
April 2, 2024
Paul R
Verified Purchase
Tempest Plug UREM40E 12 Pack
March 18, 2024
Been providing excellent service to our clubs fleet of light planes & am very happy with the service longevity of them.
Pugetsoundflyers, I
Verified Purchase
Tempest Spark Plug UREM40E
August 3, 2021
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
Great spark plugs but with a significant flaw. The wrenchings (flat six sided) on Tempest spark plugs are cliser to the firing end of the plug than on Champion plugs. On some Lycoming engines this causes interference of the wrenching with the hard lead of spark plug gasket CHT probes with the counterbore of the the cylinder head. For my customers utilizing CHT spark plug gasket thermocouples I cant utilize Tempest plugs due to this design flaw.
Gary S
Verified Purchase
Tempest Spark Plug UREM40E
August 21, 2024
Must be great. Costs enough.
Eric S
Verified Purchase
Tempest Spark Plug UREM40E
July 27, 2023
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