Light H
Verified Purchase
PowerUp KA14004 Ignition Harness Red
August 5, 2025
The insulation for wire 6 failed immediately at the plug, pulling out of the connector and leaving the braided metal showing. It flew for less than 30 minutes befire this happened. So no, I am not happy with the quality of this item and I would advise people to never buy it if they have a choice.
Karl W
Verified Purchase
PowerUp KA12381 Ignition Harness Red
August 5, 2025
Reference sheet called for this harness, but it was short and during first run-up found Cylinder 2 lead to be dead.
Blake
Verified Purchase
PowerUp KA12364 Ignition Harness Red
July 17, 2025
good product
Beauchamp A
Verified Purchase
PowerUp KA11730 Ignition Harness Red
June 18, 2025
Great build quality and fit like they were built with the Mags.
Ethan C
Verified Purchase
PowerUp KA12007 Ignition Harness Red
June 5, 2025
great... good quality
Matias N
Verified Purchase
PowerUp KA12364 Ignition Harness Red
June 4, 2025
Shipped quick, perfect fit! between these new wires and renod mags I have to cut my plane to idle abeam the numbers to land, the engine hums!
Cristina G
Verified Purchase
PowerUp KA12130 Ignition Harness Red
March 25, 2025
The Best for general aviaiton
Paribas A
Verified Purchase
PowerUp KA12216 Ignition Harness Red
December 26, 2024
As advertised. No surprises
Allen R
Verified Purchase
PowerUp KA12007 Ignition Harness Red
November 22, 2024
Complete and well built
Peter W
Verified Purchase
PowerUp KA11740 Ignition Harness Red
November 10, 2024
Spruce has an ignition harness in stock when others didn’t.
David B
Verified Purchase
PowerUp KA11740 Ignition Harness Red
October 12, 2024
Spruce has an ignition harness in stock when others didn’t.
David B
Verified Purchase
PowerUp KA11740 Ignition Harness Red
October 12, 2024
The harness fit perfectly, works great, and included a generous supply of new clamps for single, double and quadruple wires. I was able to install it with fresh new clamps making it look that much nicer.
Brooks M
Verified Purchase
PowerUp KA11780 Ignition Harness Red
September 10, 2024
Nice Fit, clamps included
Jacob H
Verified Purchase
PowerUp KA12365 Ignition Harness Red
September 7, 2024
Good harness at a fair price
James J
Verified Purchase
PowerUp KA12932 Ignition Harness Red
June 28, 2024
James K
Verified Purchase
PowerUp KA12360 Ignition Harness Red
May 16, 2024
These are nice and flexible with quality components. Take your time reviewing Kellys Application Chart - Engine Model, Magneto Models, Spark Plug Size. A mistake with any one of those will mean you get the wrong harness.
Jim H
Verified Purchase
PowerUp KA12402 Ignition Harness Red
March 14, 2024
Worked as they should
Brians A
Verified Purchase
PowerUp KA14001 Ignition Harness Red
March 8, 2024
Do the job…
Jacques V
Verified Purchase
PowerUp KA12364 Ignition Harness Red
February 27, 2024
Had to return. Wrong plug size. Plug top is different size than nut that secures wire.
Steven R
Verified Purchase
PowerUp KA12360 Ignition Harness Red
February 23, 2024
Beautiful. Works as advertised. Replaced my old harnesses with this.
Gaurav D
Verified Purchase
PowerUp KA14004 Ignition Harness Red
January 2, 2024
This harness includes both left and right. Build quality was excellent and the ignition wires had extra length over the originals allowing for easier routing. Kit contained zip ties, mounting clamps, etc. Very nice kit and well priced.
David S
Verified Purchase
PowerUp KA14001 Ignition Harness Red
November 19, 2023
Fit and performance excellent
Paul J
Verified Purchase
PowerUp KA14001 Ignition Harness Red
October 18, 2023
Seemed like a nice quality product to me, installed and run great!
Perry B
Verified Purchase
PowerUp KA12364 Ignition Harness Red
September 2, 2023
I wish Kelly would do a better job of sizing the length of the ignition wires. Some were way too long and have to be looped around and tie wrapped into a big tangled mess. If I had the fittings and tools, I would shorten some of them to the correct length.
John K
Verified Purchase
PowerUp KA11978 Ignition Harness Red
August 18, 2023
Despite ordering parts identified by this manufacturer as fitting my application, on the third part return it was determined that they do not make leads for TCM pressurized magnetos as applied to the Mooney Ovation and Ovation 2.
Andrew W
Verified Purchase
PowerUp KA12381 Ignition Harness Red
August 5, 2023
very good quality and they worked great. Muy bien excelente 👌
John F
Verified Purchase
PowerUp KA12402 Ignition Harness Red
August 1, 2023
☆☆☆☆☆
Douglas E
Verified Purchase
PowerUp KA14001 Ignition Harness Red
July 26, 2023
Work great. Just what I ordered.
Rick F
Verified Purchase
PowerUp KA12364 Ignition Harness Red
July 20, 2023
Quality Looks Good, At First Glance I did NOT know from the description that both R&l sets were included in the price.
Daniel E
Verified Purchase
PowerUp KA11780 Ignition Harness Red
July 15, 2023
works and looks great
Airmech S
Verified Purchase
PowerUp KA11730 Ignition Harness Red
July 5, 2023
I am very pleased with the Kelly wiring harness that I installed on my 172
William E
Verified Purchase
PowerUp KA14001 Ignition Harness Red
March 22, 2023
Should work. Have not installed them yet.
Daniel J
Verified Purchase
PowerUp KA12007 Ignition Harness Red
March 9, 2023
I installed these harnesses on both engines. They work well. If you are replacing custom cut harnesses, you may find (as I did) that some of the cables are shorter than the ones removed. This required some alternate routing.
Chris B
Verified Purchase
PowerUp KA12364 Ignition Harness Red
January 23, 2023
Nice product, labeled and easy install.
Victor W
Verified Purchase
PowerUp KA12932 Ignition Harness Red
January 21, 2023
The harness(KA14004) fit my O-320-E2A perfectly with my slick magnetos. I would recommend this for others.
Micah M
Verified Purchase
PowerUp KA14004 Ignition Harness Red
January 3, 2023
Did its job..
Tim O
Verified Purchase
PowerUp KA11780 Ignition Harness Red
October 12, 2022
We were told we would have to wait 45 days for a new wiring harness by our A&P. I called aircraft spruce and they delivered one two days later.
Mark R
Verified Purchase
PowerUp KA11730 Ignition Harness Red
September 27, 2022
Good quality and easy installation. However, the leads wires were marked with a tape Top 1-4 and Bottom 1-4 which is fine but may rub off over time. I noticed on my old harness the nuts themselves were stamped with T1-4 and B 1-4 . Overall good product
Red D
Verified Purchase
PowerUp KA14004 Ignition Harness Red
June 8, 2022
Very high quality - better than the competition. Go with Kelly - while they only sell through distributors, their customer service cant be beat!
Heather P
April 28, 2022
Great harness.
Lewis M
Verified Purchase
PowerUp KA14001 Ignition Harness Red
April 15, 2022
Great fit, great quality. Very pleased.
Wesley M
Verified Purchase
PowerUp KA11780 Ignition Harness Red
April 14, 2022
Bestek I
Verified Purchase
PowerUp KA12130 Ignition Harness Red
February 18, 2022
Came pre-labeled and ready to install with clamps and hardware. Made my day a little easier. Good quality, sharp looking harness. I was happy, more importantly the customer was.
Michael S
Verified Purchase
PowerUp KA11740 Ignition Harness Red
January 12, 2022
Very good quality and at amost 1/2 the price as others
Hometown A
Verified Purchase
PowerUp KA12778 Ignition Harness Red
September 22, 2021
Ordered Slick plug leads fot 400 series mags, received
4000 series harness.
Walter R
Verified Purchase
PowerUp KA11780 Ignition Harness Red
September 18, 2021
good product with the best price price i could find.
Central A
Verified Purchase
PowerUp KA12121 Ignition Harness Red
August 6, 2021
I firstly purchased a no-name generic harness for my IO-360 C1E6 however, the leads were really just too short for my install and the ends were not marked. I reluctantly purchased this Kelly set (out of frustration), but now that the harnesses are installed, Im really wishing I would have started with the Kelly set. Quality looks to be very good, the ends are marked for correct install / hook-up, and theres plenty of lead length to work with. Apparently, the C1E6 has a different connection pattern than other 4 cylinder Lycomings. I havent had opportunity to start the engine yet, but I have high confidence in the Kelly harness, and Tempest plugs.
Steve C
May 24, 2021
Harness received as expected, and worked well.
Bob C
May 12, 2021
Install went good. Works fine. From what I have seen of it prior to installation, it looks as good as those costing quite a bit more. I’m sure it will last a long time
John P
April 22, 2021
as advertised
Naiara
February 16, 2021
always in stock.
good value for what else is available.
Central A
September 2, 2020
Absolutely as advertised. As each lead was numbered, no chance to mess up and the cap fit perfectly into my Slick mags. Included in the kit was everything we needed. Aircraft starts and runs much better.
Rob F
August 31, 2020
What a awesome setup Very nice
Huge improvement
Thanks
Brad
August 5, 2020
Called your sales number and wasnt sure which harness I needed. I connected with your salesperson, Tangie. I found her to be extremely Knowledgeable and very helpful as well. I think the company should be made aware of her professionalism.
Bud B
June 15, 2020
A better quality harness than the original Champion Slick harness. I also received excellent help from Kelley Aerospace on determining their part number for the harness kit as it was not listed in their application chart for my Lycoming model.
Ted
May 23, 2020
Perfect part. Shipped fast and complete. Got here as expected and saved a AOG from a day of lost revenue. It would be nice to have a special number for AOG situations for even faster service
Chris M
May 11, 2020
Great quality, variaty of colors, fit great, leads are appropriate lengths, not too long or too short, and each lead is labeled permanently for position. Started up after installation per markings and ran great.
Erich R
March 9, 2020
Got the right part on the 2nd try. Your product support people helped out.
The incorrect part I received at first had the correct part number but was not right.
I sent it back ($27.54 UPS) and received the correct part..
Since none of this was my fault, I think ACS should have paid for the return.
Other than that, Im thankful the issue was resolved.
David R
February 7, 2020
Product is as it should be. The problem is with aircraft spruce. In stock item, that was needed quickly wasn’t shipped for a week after purchase! Part was in stock in all locations, but was sent from the furthest possible warehouse. Doesn’t make any sense. You guys dropped the ball on this one, and isn’t the first time. Plane was down for to many days for nothing.
Adam Y
December 19, 2019
Easy to install all labeled great
Bob
August 3, 2019
Made for a specific engine, this harness fits perfectly and works well. Each wire is labeled for the plug it should be connected to and which magneto it should be installed on. It is foolproof. Your mechanic will have a quick installation and the product works fine. Make sure that you have the correct part number for your engine before ordering.
Danny
April 13, 2018
Workmanship excellent and fit as expected. Very happy with steel connectors on plug ends.
James P
March 16, 2018
Nice workmanship. Clearly marked with which plug each lead goes to. Plenty of installation clamps and tie wraps included with wire set. Despite the picture shown, this set does include harnesses for both mags.
Mark
November 4, 2017
Packed and application Aok
Mel
August 25, 2017
the best price out there. only one out of a dozen had a repairable defect ie part missing.
Darryl
April 27, 2021
Seems like a good quality harness. Engine ran great after install. Came with all new clamps too. However, expect to bundle a lot of wire. The leads are almost twice as long as they need to be for my O-320.
Steven Y
March 16, 2021
Excellent, fit good and fixed the issues. Customer service was great.
Michael W
July 6, 2020
Great set, my only complaint is the number 1 bottom wire could be an inch or two longer. That one is tight with my routing configuration, which is a normal configuration.
Richard A
April 28, 2020
Easy to install. Be sure to only order 1 since the box contains both left and right harnesses (even though the ad shows a single harness and states “harness”)
Matt T
February 27, 2020
It Run Tested Excellent! Price Good.
We Found For a 0300D Cont on a Cessna 172 The #1 and 2 Leads Were Almost To Short # 3 and 4 Were Same Length As # 5 and 6 And Were Long. Remaining Was Excellent!
Donald R
March 23, 2018
Good Quality from Kelly as usual, but the APPLICATION Chart is NOT Correct....for the TCM IO-550N the only listed part number is NOT CORRECT for the Normally Aspirated IO-550N as installed in a Cirrus SR22. The magneto mounting plate is the wrong size. Apparently this is a well know issue with the Magneto Repair Shops across the country and has been this way on the application charts for many years...
Mark
February 16, 2018
The harness works fine, BUT The metal components of the harness are just so subpar that trying to finger tight the harness on spark plug seems just impossible. Threading it onto the plugs feels coarse and rough due to the cheap metal components used. Airboss or other harness have much better quality.
Flyzone
September 15, 2025
Poor quality spark cap screws, poor quality cables, hence the huge difference with Slick harness
Pavlos F
Verified Purchase
PowerUp KA14027 Ignition Harness Red
November 13, 2021
One of the crimped ferrules had fallen off. QA needs reviewing.
Norm B
Verified Purchase
PowerUp KA12364 Ignition Harness Red
September 1, 2021
The first harness sent was bad, replacement sent which worked to correct the issue. Bad harness returned! Cost me return shipping and extra A&P expense because their harness was bad. Would not recommend!
Stephen H
Verified Purchase
PowerUp KA11740 Ignition Harness Red
January 3, 2023
Not champion quality
Freeland A
Verified Purchase
PowerUp KA11730 Ignition Harness Red
March 12, 2022