DEF Ignition Coil Replaces 21171-0743, 21171-0711 for Kawasaki FR, FS, FX Series Engines, 2 Pack

Works good on Deere X530 with Kawasaki Engine. I don't have a lot of hours on my mower but they have lasted at least a few months. These fit well and appear constructed the same as OEM coils. No notable differences. I do recommend that you keep your mower out of the rain. I believe the original coils went prematurely on my mower as the previous owner had left the X530 out doors for long periods.

My cub cadet was spitting and misfiring. Ordered these coils, took about 15 minutes to install and the mower runs like new.

Installed a pair in a three year old FR 651 V . Took about 30 minutes to install. Need to gap them correctly. You can find a You Tube video showing the steps and gap setting. The original coils seem to be breaking down once the mower got up to temp. It would bog down and die after about 20 minutes of mowing. Acted like it was running out of gas, but it wasn't fuel related. I think one of coils was making a weak spark that allowed the plug to foul under heavy load. I replaced both coils figuring that the second would fail soon. After installation, I ran about an hour in heavy grass without a hiccup. Motor was still under the Kawasaki three year warranty but both nearby dealer could not get to it at least three weeks. Could not go that long without mowing. Since it was an intermittent failure it would probably have taken multiple trips to the dealer anyway. So it go.

Easy to replace and work good.

Prompt delivery, reasonable price

Bought a pair of these for my FX600V engine in May '24 and one is now failing mid-August. Also, I noticed when gapping them during installation they did not match up exactly to the curvature of the flywheel. I gapped them to spec the best I could and they did work, but I had a bad feeling the quality just wasn't there. Should have bought the OE coils, but now I see they are made in China too and cost four times more... frustrating!

Installed easily. Setting was perfect!

These coils had me up and running in no time at all. Replacement is straight forward so anyone should be able to replace these. Use a match book to set the gap and you're good to go.