Worked perfectly out of the box.

Alan L Verified Purchase

POWERUP 4371 O/H MAGNETO

Everything as stated. Completely satisfied

Had to confirm with staff as to what was included, eg. gaskets because of the adapter needed for the left mag. Person was very helpful in determining gaskets that were needed.

Replacement from a defective rebuilt Magneto. The product was ready for pick up the next day and worked great. My plane is work better than it has in 3 years and it appears I have picked 5 knots of airspeed and both my Magnetos are matched perfectly and dialed in. Thank you, Keith

It works

They seem to work OK.

Quickly installed and adjusted. The plane runs like a top ! Will buy again.

Arrived quickly and well packaged . Works well.

Working fine so far. Apparently a good product from Kelly Aerospace.

Ordered the 4301 magneto for my C-85. I also ordered gasket with it, but it turns out this was not necessary because the magnetos came with the gasket. So I had to return the gasket with the core. The description should say that the gaskets are included.

Installed both mags This mag after installing at annual experienced a miss from this right mag. Thought it may be a spark plug changed suspected plug. Second engine run up this time when testing left mag engine died this time. Brought back in hanger removed mag and the A&P I.A. had to disassemble mag to find that the condenser wire from the points was not plug on to condenser. It was just laying against it and there was visible burn makes on the spade connector. reassembled installed mag and ran engine again now things are fine. I feel quality control should be better than this.

One of the two mags was bad! Will have to send back. At least Kimberly got it corrected in good order

Your on-line catalogue did not give the information I needed (at least not where I could find it) so I called ACS and talked to a woman who was to help me find the Slick magneto models that I needed for my Lycoming O360 A4M engine. I gave her my information and that I needed one with a impulse coupling. She told me that I needed a 4370 and a 4347. Turns out that neither magneto is impulse coupled. So, I went to another source for my necessary information and found that I need a 4371 impulse coupled magneto. So I ordered the proper magneto. Now, I have to return the one magneto to ACS. Another delay for me because the person at ACS gave me the wrong information. Your on-line catalogue needs some work to make it more user friendly!

Ordered two mags for an IO360. After installation engine ran worse than with the 950 hour old mags they replaced. After months of troubleshooting, mechanic figured out the e-gap was set wrong by Kelly. Garbage quality control. I’m sure I could have had Kelly send me a new one, because paying a mechanic to rip a new mag out of an engine and my plane be down for 3 weeks sounds fun. Will never buy these again.

Had a miserable experience with the 4371 impulse coupled mag. Right after installation, the plane experienced hard starting...both cold and hot starts. Subsequent check of the timing showed they were installed perfectly. After becoming stranded at a distant airport, the mechanic there determined it was a weak magneto. Kelly didnt offer to ship another one, and neither did Spruce, unless one was purchased to replace it. Terrible product, support, and customer service from everyone involved. Two months after purchase, Spruce still has the wrong information about the magneto, saying that the coil and condenser is replaced, which is not true. All around horrible and expensive experience.